Solid-state ¹³C-NMR spectroscopy was applied to the analysis of structures and magnetic relaxation times of the cured resins, formed from diglycidyl ethers of bisphenol A and methyl tetrahydrophthalic anhydride. With solid-state ¹³C-NMR spectra, the structures of the cured epoxy resins could be determined by characterizing the signals of glycidyl group.Moreover, as an amount of methyl tetrahydrophthalic anhydride increases, the rotating frame relaxation times (T₁ρ_c) decrease, while the molecular motion of di-ester group increases. It is shown that there seems to have a certain correlation between the molecular motion of di-ester linkage and the relaxation time. From the further examination of this molecular motion, clear correlations between T₁ρ_c and physical properties such as dynamic physical properties and impact strength, etc, was studied.

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Sales volume and applications of silicone rubber are both expanding year by year, and the requested performance becomes higher. In the market of electronics and electrics, volatility-controlled products are expecting which are effective to prevent electrical damage of switches. Higher purity silicone rubbers become popular from which volatile siloxanes were removed. Higher physical property silicone rubbers also have been longtime technical theme. Recently published wet process hydrophobic sililca has the possibility to obtain higher physical property silicone rubber. The performance which is difficult for silicone alone to achieve could be obtained by blending with other organic rubbers or plastics. In this article, these higher performance silicone rubbers are introduced and discussed.

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This review describes the recent application of Fourier transform infrared spectroscopy to the analysis of thermo setting resins. It includes the analyses of composition, surface, microsample, curing process, and thermal degradation process.
Attenuated total reflection (ATR), reflection-absorption spectroscopy (RAS), and photoacoustic spectroscopy (PAS), in addition to transmission spectroscopy, are also applicable to the analysis of thermosetting resins.

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Micorogels are classified as soluble intramolecularly cross-linked macromolecules, with the size less than 100nm. Unfortunately microgels have received less attention than other conventional linear or branched macromolecules, because they had formerly been impossible to be selectively produced in large amounts in a factory. In 1984, the microgels were successfully manufactured via an emulsion polymerization process involving the use of novel amphiphilic oligomers containing the zwitterion moiety as emulsifiers. Those oligomers differed from commercially available surfactants that failed to produce the microgels with properties such as long shelf stability, low viscosity, practical solid concentration and water resistance. This was the origin of the industrial production of microgels.
Since then, the application of the microgels as additives to coatings has been significantly accelerated. The mutual affinities between microgels and solution, polymer matrices or different particles result in the improvement of the performance of coatings. This includes the rheology of composition, dispersion of pigments, moisture permeability, aesthetic properties and transparency of coated films. The application besides coatings, such as the formation of void-containing Particles by the aid of microgels, are also discussed.

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