Dinitrile is prepared from dibasic fatty acid and ammonia by using dehydrating catalyst at elevated temperature. Authors investigated the amidation reaction of azelaic acid by blowing ammonia gas at comparatively low temperature ranging 150 to 200°C. As a result, order of this reaction was found to be secondary, approximately, to the concentration of the azelaic acid, where the effect of ammonia gas is minimized, and the activation energy was 9.7 5 kcal per mol and frequency factor was 40.26. The reaction velocity was expressed as : kc=40.26e-3.966×103/T at 150 to 200°C
Abietic acid concentrated from tall oil rosin was reacted with formaldehyde rapidly (3060 min) in acetic acid (or propionic acid) solution to give 8, 9-bis- (methylene-acetoxy) -abietic acid which was isolated as the cyclohexylamine salt. From hydrolysis of this compound, 8, 9-dimethyloleabietic acid was obtained. The reactions of tall oil rosin with formaldehyde in absence of carboxylic acids or in inert solvent such as dioxane and benzene etc. were not proceeded, and tall oil rosin could be recovered unchanged in each case. But, condensation of tall oil rosin with formaldehyde was promoted in the presence of a small quantity of acetic acid, or even in higher fatty acid. The above reaction was also carried out in the presence of hydrochloric acid, but a large quantity of ether insoluble matters were obtained as the reaction products.
In this paper, authors report study on method of synthesis of bis- (β-cyanoethyl) -alkylamine in cyanoethylation of cetylamine. As the experimental terms, authors picked up the molratio of acrylonitrile to amine, the reaction temperature and the reaction time at non-solvent and especially in solvent to investigate whether these terms have the influence for the composition of products. As a result, consequently, authors obtained the following conclusion. The yield of biscyanoethylate was 97% under the condition, using twice methanol or methanol containing water by weight for amine and three mol of acrylonitrile fo one mol of amine at reaction temperature of 70°C and for 12 hr reaction time. In case of ethanol, under the same condition above-mentioned, the yield was 50%, and it was 92% after 48 hr. When benzene and toluene was used instead of methanol, biscyanoethylate was formed little. Reaction in alkaline methanol by NaOH was also the same. At non-solvent, the reaction rate of biscyanoethylate was very slow. In any cases mentioned above, the reaction rate of monocyanoethylate was extremely fast. Viewed from these results, authors believe that the reaction in polar solvent is very effective and useful in biscyanoethylation of cetylamine.
Authors studied liquid phase polymerisation of propylene oxide using alkali catalyst in the presence and absence of propylene glycol as starting material. The effects of catalyst concentration, reaction temperature, mole ratio of propylene glycol to propylene oxide etc. on the reaction velocity, the average molecular weight and unsaturation of the polymer were investigated. By selecting these reaction conditions it became more feasible to prepare the polypropyleneglycol having any reguired average molecular weight and unsaturation as low as the urethane-grade.
In the previous paper, authors presumed that the cancerous cell might be produced, probably changing the status of cell-division if the oxidized lipids would form the complexes with nucleoproteins. There has been the suggestion that all carcinogenic compounds are able to concern themselves in reactions leading to produce free radicals. Besides, it has been recognized that lipids is oxidized through catalysis by the free radicals. But it can be hardly assumed that cancer of lung may be generated by taking oxidized lipids directly through trachea. If the substances containing free radicals such as cigarette smoke enter into the lung, lipids of the tissue may be oxidized with free radicals as catalysts. In such a case, cancerous tissue in lung may contain oxidized lipids. From this point of view, lipids were extracted from the tissue of bronchial carcinoma, a kind of cancer of lung, and fatty acid methyl esters of the lipids prepared. All procedures were performed at room temperature under the stream of nitrogen. The methyl esters of fatty acids of lipids from cancerous pleural fluids were also obtained. Then acids compositions were calculated from ultraviolet spectrum. It was made clear that trans-trans or cis-trans conjugated diene hydroperoxide was contained in the methyl esters of fatty acids obtained from the lipids of all sumples from the infrared spectrum.
Chloroalkyl benzoates (alkyl group : C12, C16 and C18 saturated) obtained by the chlorination with Cl2 gas under the electric light were investigated as plasticizers for PVC. All product showed a good compatibility and gave more elastic seat. Chlorine contents less than 5 atoms in a molecule were suitable as for the plasticizer, and less chlorine content and shorter alkyl chaine length gave better characterization at low temperature. The brittling temperature for the use of dichloro-octadecyl benzoate was -32.5°C (DOP : -25°C). But for the thermal resistance of the seat, it was necessary to add the suitable stabilizers and when epoxide and alkyl tin compound were used the most desirable result was obtained. When metal stearate was solely used as the stabilizer, effect was contrary.
In the previous Paper, authors studied the effect of inorganic builders on detergency of nonionic surfactant (polyoxyethylene nonyl phenyl ether (EO) 10 mol). In this paper, the relationship between detergency of a nonionic surfactant and its surface active properties (surface tension, wetting, foaming and emulsifying powers, solubilization and dispersion) was investigated in comparison with two usual anionic detergents (sodium lauryl sulfate and sodium dodecylbenzene sulfonate). As a result, it was found that the same surface active properties contributed to washing with both nonionic and anionic surfactants, but the type of those effective properties changed depending on the character of soils. Washing efficiency of nonionic surfactant was selective depending on soils.