-
Seiichiro Nakabayashi, Kiyoshi Inokuma, Aiko Nakao, Ivan Krastev
2000 Volume 29 Issue 2 Pages
88-89
Published: 2000
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Spiral waves consisted of deposited Ag and Sb were propagating two-dimensionally on a copper electrode surface while the electrochemical co-deposition of the metals was proceeding. A time course of this electrochemically driven wave-propagation was phenomenologically similar to the one driven by a homogeneous non-linear reaction in Belousov-Zhabotinsky (BZ) reaction-diffusion medium. The Ag/Sb co-deposition also formed a layered structure in the depth, finally it made a 3-dimensional super-structure on the electrode.
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Takashi Hayashi, Kenshi Okazaki, Hisashi Shimakoshi, Fumito Tani, Yosh ...
2000 Volume 29 Issue 2 Pages
90-91
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Alkylcobalt(III) and alkylperoxocobalt(III) species of porphyrin and porphycene have been prepared and characterized by UV-vis and
1H NMR spectroscopic measurements. Thermal decomposition of the alkylperoxocobalt species proceeds via Co–O or O–O bond cleavage, which depends on the coordination of an axial ligand.
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Masahiro Suzuki, Naomi Takada, Toshiki Koyama, Satoshi Kobayashi, Muts ...
2000 Volume 29 Issue 2 Pages
92-93
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Ionic conductivity of a composite film consisting of partially phosphorylated poly(vinyl alcohol) (P-PVA) and poly(acrylic acid) (PAA) is increased about three orders of magnitude over that of P-PVA film.
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Yingmo Hu, Katsuyuki Hirai, Hideo Tomioka
2000 Volume 29 Issue 2 Pages
94-95
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Kinetically stabilized triplet di(2,6-dimethylphenyl)carbene is thermodynamically stabilized further by a spin-delocalizing
para-substituent, whereby making the persistent triplet carbene longer-lived.
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Hiroaki Horiuchi, Hitoshi Shirase, Tetsuo Okutsu, Ryoka Matsushima, Hi ...
2000 Volume 29 Issue 2 Pages
96-97
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The photochromic system of 2-hydroxy-4′-methoxychalcone was found to be a novel photon-mode erasable system with nondestructive readout ability. The fatigue resistant property of the photochromic system of 2-hydroxy-4′-methoxychalcone has been confirmed at least up to 10 write-and-erase cycles.
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Kazuhiko Tsukagoshi, Miwa Otsuka, Masahiko Hashimoto, Riichiro Nakajim ...
2000 Volume 29 Issue 2 Pages
98-99
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Simple and convenient batch-type detection cells were developed for the capillary electrophoresis with chemiluminescence detection using peroxyoxalate reagent. A fused-silica capillary was directly inserted into the cell, and a grounding electrode was also done into it. The cell could be easily combined with capillary electrophoresis without any complex construction and expensive implements. A mixture of Dnsyl-amino acids was satisfactorily separated. Dnsyl-Trp was detected with the detection limit of 1 × 10
−8 M by use of a glass cuvette-type cell.
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Moonsuk Kim, Fumio Sanda, Takeshi Endo
2000 Volume 29 Issue 2 Pages
100-101
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S,S-Di-
t-butyl phenylthiophosphonate (
1) served as a novel thermally latent initiator in the polymerization of glycidyl phenyl ether (GPE) in the presence of ZnCl
2.
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Tetsuaki Fujihara, Nicholas H. Rees, Keisuke Umakoshi, Junichi Tachiba ...
2000 Volume 29 Issue 2 Pages
102-103
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The molecular structure of a reversible oxygen carrier, Mo
VIO(tmp)(O
2) has been characterized by X-ray crystallography. Oxo and dioxygen ligands are actually coordinated with
cis conformation, which leads to a saddle-like distortion of the porphyrin ring. The result of 2D ROESY shows the distortion of the porphyrin ring is retained in solution.
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Hideki Yorimitsu, Hiroshi Shinokubo, Koichiro Oshima
2000 Volume 29 Issue 2 Pages
104-105
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Treatment of allylic ether of 2-iodophenol or 2-haloethanal allylic acetal with phosphinic acid, a base and a radical initiator (AIBN or triethylborane) in aqueous ethanol provided the corresponding radical cyclization product in excellent yield. An addition of a base is critical to employ phosphinic acid as a radical mediator.
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Yoshiki Katayama, Takumi Arisawa, Yoshihisa Ozaki, Mizuo Maeda
2000 Volume 29 Issue 2 Pages
106-107
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An affinity capillary electrophoresis for gene mutation assay was developed using oligonucleotide-polyacrylamide conjugate as pseudo-immobilized affinity ligand. In the system, magnesium ion concentration was found to be a key factor to achieve efficient separation of sequential isomers of oligonucleotide with the same chain length.
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Hiroyuki Asanuma, Takayuki Yoshida, Xingguo Liang, Makoto Komiyama
2000 Volume 29 Issue 2 Pages
108-109
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Modified oligo(T)s carrying an azobebzene at the 5′-ends form unexpectedly stable triple-helixes with oligo(A)/oligo(T) double-helix. The triplex-stabilizing activity of the azobenzene is comparable with (or greater than) that of thymine.
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Susumu Kawabata, Naoko Iwata, Hitoshi Yoneyama
2000 Volume 29 Issue 2 Pages
110-111
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Asymmetric synthesis of amino acid has been successfully achieved by electrochemical reduction of keto acid using an electrode on which amino acid oxidase and electron mediator are immobilized. The enantiomer excess closing to 100% was obtained.
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Shigeru Ichihara, Hiroshi Okuyama, Hiroyuki Kato, Maki Kawai, Kazunari ...
2000 Volume 29 Issue 2 Pages
112-113
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The adsorption of C
2H
4 on Pd(110)-(2x1)-H at 160 K was studied by scanning tunneling microscopy and high-resolution electron energy loss spectroscopy. We found that two adsorbed species coexist at high coverage. The species were characterized by C-C stretching energies of 170 and 153 meV, which were identified as one-dimensional and c(2x2) domains, respectively. The latter species, which appeared only at high coverage, was bonded to the bare surface, which implied the possibility of H atom transition into the subsurface.
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Yi Xie, Jun Lu, Ping Yan, Xuchuan Jiang, Yitai Qian
2000 Volume 29 Issue 2 Pages
114-115
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Nanocrystalline FeAs, CoAs and NiAs were prepared by keeping the mixture of FeCl
3, CoCl
2 or NiCl
2 with arsenic and KBH
4 in ethylenediamine (en) at 100 °C for 4 h, respectively. X-Ray powder diffraction (XRD) patterns and transmission electron microscope (TEM) images show that the products are orthorhombic FeAs, CoAs and hexagonal NiAs, respectively, and all are well crystalline in nanometers.
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Hiroaki Yoshida, Kazuhiko Saigo, Kazuhisa Hiratani
2000 Volume 29 Issue 2 Pages
116-117
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Bis(2-hydroxynaphthamide) derivatives have been synthesized
via tandem Claisen rearrangement in high yields. These compounds are found to make complexes with anions and emit luminescence, serving as anion sensing fluorophores.
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Tetsuji Yamaoka, Tsuyoshi Kimura, Reiko Iwase, Akira Murakami
2000 Volume 29 Issue 2 Pages
118-119
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Poly(
L-lysine) (PL) is chemically modified on the basis of the commonly essential structures of effective gene carriers, which we previously found, in order to improve the insufficient gene-transferring efficacy of PL. The PL-derivatives were then subjected to gene transfer with the osmotic shock procedure. Poly(N
ε-trimethyl-
L-lysine-
co-serine) (PtmLS) showed much higher transient gene expression than PL with low cytotoxicity while poly(N
ε-trimethyl-
L-lysine) and poly(l-lysine-
co-serine) did not. These results strongly support the importance of both of the nonionic hydrophilic groups and quaternary ammonium groups of the gene carriers.
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Abdol Reza Hajipour, Shadpour E. Mallakpour, Iraj Mohammadpoor-Baltork ...
2000 Volume 29 Issue 2 Pages
120-121
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1-Benzyl-4-aza-1-azoniabicyclo[2.2.2]octanedichromate is a useful reagent for selective oxidation of benzylicalcohols and α-hydroxy ketones to the corresponding carbonyl compounds. The reaction was carried out under solvent-free conditions without or in the presence of a catalytic amount of aluminum chloride.
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Kazuya Takeuchi, Takayuki Tamura, Teruaki Mukaiyama
2000 Volume 29 Issue 2 Pages
122-123
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The trityl tetrakis(pentafluorophenyl)borate [TrB(C
6F
5)
4] catalyzed stereoselective synthesis of various disaccharides was successfully carried out by treating a new 2-
O-acyl-protected glycosyl donor, 3,4,6-tri-
O-benzyl-2-
O-
p-toluoyl-β-D-glucopyranosyl phenylcarbonate, with several glycosyl acceptors, thioglycosides, affording the corresponding disaccharides in high yields.
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Kazuya Takeuchi, Takayuki Tamura, Teruaki Mukaiyama
2000 Volume 29 Issue 2 Pages
124-125
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New highly effective promoter system for the glycosylation of thioglycoside, the combined use of stoichiometric amount of either
N-iodosuccinimide or
N-bromosuccinimide and a catalytic amount of TrB(C
6F
5)
4, was developed and was successfully applied to the one-pot sequential synthesis of trisaccharides. In the first glycosylation step, 3,4,6-tri-
O-benzyl-2-
O-
p-toluoyl-β-D-glucopyranosyl phenylcarbonate was treated with thioglycosides in the presence of a catalytic amount of TrB(C
6F
5)
4 alone, and the following glycosylation with methyl α-D-glycosides was carried out by further addition of either
N-iodosuccinimide or
N-bromosuccinimide to the initially resulted reaction mixture to afford the corresponding trisaccharides in one-pot manner.
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Kou Takahashi, Jun Takagi, Tatsuo Ishiyama, Norio Miyaura
2000 Volume 29 Issue 2 Pages
126-127
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The synthesis of 1-alkenylboronic acid pinacol esters
via the palladium-catalyzed cross-coupling reaction of 1-alkenyl halides or triflates with bis(pinacolato)diboron [(Me
4C
2O
2)B-B(O
2C
2 Me
4)] was carried out in toluene at 50 °C in the presence of potassium phenoxide (1.5 equivalents) and PdCl
2(PPh
3)
2·2PPh
3 (3 mol%).
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Hirotaka Ihara, Takashi Sagawa, Ken-ichi Nakashima, Kayoko Mitsuishi, ...
2000 Volume 29 Issue 2 Pages
128-129
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Enantiomer separation has been often realized with reversed phase liquid chromatography using diastereomerizing reagents with simply-hydrophobized silica. The present study demonstrates that diastereomer selectivity can be enhanced through highly-oriented organic phase produced by achiral poly(octadecyl acrylate)-grafted on silica and a carbonyl-π interaction due to the acrylate moiety is effective as the driving force for the selectivity enhancement.
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Yasuyuki Suzuki, Warsito , Akinori Maezawa, Shigeo Uchida
2000 Volume 29 Issue 2 Pages
130-131
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A method for the induction of the agglomeration of different kinds of particles by the ultrasonic irradiation in the water was studied. This method has been proven to be applicable to the separation of photo-catalyst particles from the drainage of photo-oxidation process. The catalyst particle was titanium oxide with the average diameter of 3 µm. The agglomeration was observed when the ultrasound with the frequency of 26 kHz and the power of 80 W was irradiated and a certain amount of glass beads with the diameter between 33-44 µm were added. The catalyst particles deposited on the glass beads, and then settled together with the glass beads leading to the liquid-solid separation. It was also found that the addition of the glass beads has also enhanced the agglomeration among the catalyst particles themselves.
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Tomoyuki Akutagawa, Yukako Abe, Tatsuo Hasegawa, Takayoshi Nakamura, T ...
2000 Volume 29 Issue 2 Pages
132-133
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Charge-transfer complexes of bis(methylthio)tetrathiafulvalene (DMT-TTF) bisannulated macrocycles with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F
4-TCNQ) were prepared. The crystal structural analysis revealed an intramolecular dimer structure with the π-π overlap of DMT-TTF units. The magnitude of intramolecular π-π overlap depends on the ring size of macrocycles.
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Hiroshi Kashiwagi, Kazutoshi Aizawa, Masaharu Ueno
2000 Volume 29 Issue 2 Pages
134-135
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Hyperfine splitting patterns of the ESR spectra of 2,2,6,6-tetramethylpiperidine-N-oxyl (TEMPO) in octyl β-
D-glucoside (OG)-containing egg yolk phosphatidylcholine (EPC) large unilamellar vesicle suspensions were mainly composed of TEMPO dissolved in water, in lamellar EPC, and in nonlamellar EPC. Their hyperfine splitting constants and half widths were available for monitoring the behavior of OG in the course of vesicle destruction.
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Hajime Mori, Aya Wada, Qiang Xu, Yoshie Souma
2000 Volume 29 Issue 2 Pages
136-137
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A solid superacid, sulfated zirconia, worked well in the Koch reaction. Under optimized conditions, tertiary alcohols were selectively transformed to the corresponding carboxylic acids (34-72%), while primary alcohols were transformed to the corresponding ethers (58-72%).
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Fei Cheng, Yoshiyuki Sugahara, Kazuyuki Kuroda
2000 Volume 29 Issue 2 Pages
138-139
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A novel soluble precursor with a Zr-N-Zr backbone structure was prepared by an aminolysis reaction of Zr(Net
2)
4 with Pr
iNH
2. Pyrolysis of the precursor under NH
3-N
2 atmospheres led to the formation of ZrN as a main crystalline phase with a ceramic yield of 45.2%. Aggregated particles consisting of very minute particles with diameters of 50-300 nm were obtained.
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Ryuichiro Hara, Qiaoxia Guo, Tamotsu Takahashi
2000 Volume 29 Issue 2 Pages
140-141
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Reactivity of low-valent molybdenum prepared from MoCl
5 with various reducing metals in DME, was dependent on the reducing metals in the order of Al > Sn, In > Zn, Mg, Li in the case of cyclotrimerization of alkynes. This order is parallel to the acidity of the descendant Lewis acids.
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Hirofumi Yoshikawa, Shin-ichi Nishikiori
2000 Volume 29 Issue 2 Pages
142-143
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A series of polycyano-polycadmate host clathrates accommodating a methylviologen dication and an organic molecule has been prepared. Some of them showed a color change from white to blue under UV-VIS light, which comes from the reduction of the methylviologen dication to its monocation radical. This phenomenon depends on the species of the coexistent organic guest and the crystal structure of the clathrates.
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Tamaki Kato, Motonori Uchiyama, Naoki Maruo, Toru Arai, Norikazu Nishi ...
2000 Volume 29 Issue 2 Pages
144-145
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Dendritic poly(
L-lysine)s combining thirty-two free base- and Zn(II)-porphyrins in scramble fashion were successfully synthesized and exhibited highly efficient (85%) fluorescence energy transfer from Zn(II)-porphyrins to free base-porphyrins.
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Masaru Ogura, Aya Kawamura, Masahiko Matsukata, Eiichi Kikuchi
2000 Volume 29 Issue 2 Pages
146-147
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Catalytic performance of Ir catalysts for reduction of nitric oxide with carbon monoxide in the presence of SO
2 and excess oxygen was investigated. NO was selectively reduced with CO on Ir/silicalite in an oxidizing atmosphere containing 1% to 10% O
2 in the temperature range of 300-500 °C. The catalytic activity was scarcely influenced by 150 ppm SO
2.
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Toshiyuki Moriuchi, Seiji Bandoh, Masayuki Kamikawa, Toshikazu Hirao
2000 Volume 29 Issue 2 Pages
148-149
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The palladium homobimetallic complexes
2a and
2b with a bridging π-conjugated molecule,
N,N′-bis(4′-pyridylmethylidene)-1,4-phenylenediamine (L
2a) and 2′-pyridyl derivative L
2b, were respectively synthesized and characterized by X-ray crystal structure analysis and cyclic voltammetry.
1H-NMR of
2b indicates the five-coordinate geometry on the palladium center.
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Katsukiyo Miura, Takahiro Nakagawa, Shuntaro Suda, Akira Hosomi
2000 Volume 29 Issue 2 Pages
150-151
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In the presence of a catalytic amount of TBAF (Bu
4NF), dimethylsilyl enolates derived from acyclic ketones reacted with aldehydes to give
syn,syn-1,3-diols
7a and
8a with moderate to high diastereoselectivity. The stereochemical outcome can be attributed to a
syn-selective aldol reaction and the subsequent 1,2-
syn-selective intramolecular reduction.
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Wei-Ming Bu, Ling Ye, Yu-Guo Fan
2000 Volume 29 Issue 2 Pages
152-153
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The neutral network of [Ag
2(hmt)(NO
3)
2]
n was prepared and characterized by X-ray diffraction studies which reveal a novel interpenetrating three-dimensional framework based both on the metal ions bound to µ4-hmt ligands and anions bonding mode. The anion bridges give a unique helical cylinder structure motif.
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Satoko Yoshizawa, Kimitsuna Watanabe, Kin-ichiro Miura, Ichiro Hirao
2000 Volume 29 Issue 2 Pages
154-155
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In the poly(U)-dependent poly(Phe) synthesis, we found that small hairpin DNA fragments overcome the decline in the translation efficiency caused by an excess amount of
E. coli tRNA
Phe. Of these fragments, hairpin DNAs with similar sequences to the unmodified D-arm or TΨC-arm of tRNA
Phe were most effective.
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Jung Hee Kim
2000 Volume 29 Issue 2 Pages
156-157
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A flexible dinuclear Cu(II) complex with 1,3-bis(1,4,7-triaza-1-cyclononyl)propane, hydrolyzes 4-nitrophenyl phosphate under mild conditions, with 300 times rate enhancement over the corresponding mononuclear Cu(II) complex. In contrast, there is no difference in the reactivity in hydrolyzing bis(4-nitrophenyl)phosphate.
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Ayumi Kashiwada, Hiroyuki Watanabe, Toshihisa Mizuno, Kouji Iida, Tomo ...
2000 Volume 29 Issue 2 Pages
158-159
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Zn-bacteriochlorins or Zn-mesoporphyrins were successfully assembled with light-harvesting (LH)-α and -β polypeptides separately isolated from photosynthetic bacteria in n-octyl-β-
D-glucopyranoside (OG) micelle, depending on the structure of Zn-porphyrin derivatives and on temperature.
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Genta Harada, Masato Yoshida, Masahiko Iyoda
2000 Volume 29 Issue 2 Pages
160-161
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The coupling of diaryldimethyltins with Cu(NO
3)
2·3H
2O in THF proceeds smoothly at room temperature under ambient atmosphere to produce the corresponding biaryls in good to high yields. Diaryldimethyltins can be prepared in high yields by the reaction of aryllithiums with dichlorodimethyltin.
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Kenji Nomiya, Ryusuke Noguchi, Chieko Kato
2000 Volume 29 Issue 2 Pages
162-163
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We have prepared a novel water-soluble silver(I) complex showing effective antibacterial activities K
12[Ag
8(mba)
10]·12H
2O (
1a, H
2mba = 2-mercaptobenzoic acid) from the Ag
2O : H
2mba : KOH = 1 : 4 : 8 molar ratio reaction in aqueous media and determined its crystal structure. The X-ray crystallography revealed that
1a was a discrete, anionic octanuclear silver(I) cluster consisting of two butterfly-type Ag
4S
4 subunits bridged by two µ
3-S atoms.
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Qingdao Zeng, Chen Wang, Chunli Bai
2000 Volume 29 Issue 2 Pages
164-165
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The formation of regular nanostructures by photolysis of azobisisobutyronitrile (AIBN) in the solid state is investigated using atomic force microscopy (AFM) and known crystal packing data. AFM reveals that the crystal face (001) of AIBN yields both craters and volcanoes. All the experimental results are correlated with the crystal structure. Molecular interpretation of the AFM features of AIBN is given.
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Bernabé L. Rivas, Ignacio Moreno-Villoslada
2000 Volume 29 Issue 2 Pages
166-167
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Despite poly(allylamine) forms a complex with Ni
2+ with three amino groups in the coordination sphere of the metal ion, the corresponding formation constant is of order one considering the polymer concentration. This supports the idea of the existence of polymeric domains with local high and nearly constant ligand concentration. Analogous behavior is found for the system poly(sodium 4-styrenesulfonate) with Pb
2+.
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Hidehiro Sakurai, Katsuhiko Tanabe, Koichi Narasaka
2000 Volume 29 Issue 2 Pages
168-169
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A three-component coupling of tetramethylammonium pentacarbonyl(acyl)chromates, aryl iodides, and CO takes place under CO atmosphere in the presence of a catalytic amount of Pd(PPh
3)
4 to afford the corresponding unsymmetrical α-diketones in good yield. By performing the reaction under argon atmosphere, unsymmetrical ketones are prepared instead of α-diketones.
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Kyo Han Ahn, Sung-Gon Kim, Junyang Jung, Kyung-Hyun Kim, Jaheon Kim, J ...
2000 Volume 29 Issue 2 Pages
170-171
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Benzene-based tripodal tris(oxazolines) are found to be promising receptors for the selective recognition of NH
4+ over K
+ with high binding affinities.
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Keiko Miyabayashi, Keita Suzuki, Toshiharu Teranishi, Yasuhide Naito, ...
2000 Volume 29 Issue 2 Pages
172-173
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Fourier transform ion cyclotron resonance mass spectrometry equipped with electrospray ionization (ESI FT ICR MS) was successfully applied to determine molecular formulas of components in Arabian mix vacuum residue (AM-VR) by measurement of highly accurate m/z values of molecular ions and analysis of spectral pattern without any pre-separation procedures.
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Motoki Yamane, Yuichiro Ishibashi, Hidehiro Sakurai, Koichi Narasaka
2000 Volume 29 Issue 2 Pages
174-175
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Double acylation of alkenes such as norbornene and vinylsilane proceeds by the use of acylchromate complexes and a cationic Pd(II) complex. When two different acylchromates are added successively to a mixture of alkene and the Pd complex, unsymmetrical diketones are obtained almost selectively.
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Shouli Sun, Noritatsu Tsubaki, Kaoru Fujimoto
2000 Volume 29 Issue 2 Pages
176-177
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Addition of very small amount of Ru, Pt and Pd exhibited great effect on the Co-based catalysts prepared by mixing impregnation of cobalt (II) nitrate and cobalt (II) acetate. Added small amount of Ru to this kind of catalyst showed extremely high activity, while no apparent CH
4 selectivity change was observed. However, added Pt and Pd hardly exerted effect on the activity of Co-based catalyst, but increased CH
4 selectivity remarkably.
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Jun-ichi Matsuo, Takehiro Tsuchiya, Kazunori Odashima, Shu Kobayashi
2000 Volume 29 Issue 2 Pages
178-179
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Diels-Alder reactions of carbonyl dienophiles with dienes and aza Diels-Alder reactions of imines with a diene have been successfully carried out using scandium tris(heptadecafluorooctanesulfonate) (Sc(OSO
2C
8F
17)
3) as a Lewis acid catalyst in supercritical carbon dioxide (scCO
2). It was revealed that the length of perfluorocarbon chains of the scandium catalyst was an essential factor for the catalytic activity in scCO
2.
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Akira Mori, Kanji Kubo, Tatsuya Nishimura, Nobuo Kato, Hitoshi Takeshi ...
2000 Volume 29 Issue 2 Pages
180-181
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Condensation reaction of 2,7-dibromotropone with 1,3-bis(mercaptomethyl)benzene afforded 2:2- and 1:2-condensates. Their structures were determined to be new troponoid tetrathiacyclophanes by X-ray crystallographic analyses; 2:2-condensate had a 1,2-alternate conformation and was well-stacked through π-π interactions. 1:2-Condensate had approximately a cone conformation. 2:2-Condensate formed a complex with Hg(II) ion.
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Jong-mok Park, Wanbin Zhang, Yohji Nakatsuji, Tetsuro Majima, Isao Ike ...
2000 Volume 29 Issue 2 Pages
182-183
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Styrylpyrazine amphiphile
1 in aqueous dispersion showed a remarkably slow aggregation process. Evidence supporting the “translation” layered structure of
1 having face-to-face stacking in the aggregate was obtained by the blue-shifted fluorescence spectra by the aggregation in contrast with the red-shift for stilbene amphiphile
2.
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Victor N. Nemykin, Nagao Kobayashi, Taro Nonomura, Eugene A. Luk&rsquo ...
2000 Volume 29 Issue 2 Pages
184-185
Published: 2000
Released on J-STAGE: May 01, 2003
JOURNAL
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Low-symmetrical phthalocyanines (Pcs)
2-
5 prepared by mixed condensation of tetraphenylphthalonitrile and 4-phenylthiophthalonitrile in the presence of a copper salt, show spectroscopic, electrochemical, and molecular model indications which suggest varying degrees of non-planar distortions of the Pc plane and unexpected S
1 state degeneracy.
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Takashi Kato, Takuo Suzuki, Taku Irie
2000 Volume 29 Issue 2 Pages
186-187
Published: 2000
Released on J-STAGE: May 01, 2003
JOURNAL
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Layered polymer/calcium carbonate (CaCO
3) composite films have been successfully obtained by alternate repetition of spin-coating of polysaccharides and thin film crystallization of CaCO
3 in the presence of an acid polymer. SEM images show layered structures consisting of brick of the inorganic crystal and mortar of the polymer.
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