So as to control the catalytic activity of H2PtCl6 toward the hydrosilylation process, various imine derivatives were employed as an additive of the catalyst and theire ffect on the activity was evaluated. From the study on the hydrosilylation reaction of trimethylvinylsilane with triethylsilane at various temperatures, imine derivatives were found to act as a good retarder of the catalyst. The activity of Pt catalyst was dependent upon the substituents on the imine derivatives and also upon the quantity of the additive. The curing reaction of silicone resin was also carried out in the presence of imine derivatives, and the similar results to the model reaction were obtained. That is, the combination of H2PtCl6 and imines were found to be an excellent latent catalyst for the hydrosililation process. The curing temperature of silicone resine was controllable by the character and the concentration of the imines employed.

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The direct measurement of interaction force between two condensed matters is capable by using atomic force microscopy (AFM). However, an atomic flat surface can be obtained by cleavage of mica or graphite. Most of solid surfaces indicate micro roughness represented as square mean roughness R_ms. Moreover, in ordinal ambient condition, a certain moisture adsorbed on any solid surfaces and a meniscus between micro tip and sample surface is formed. Generally, adsorption force between a micro sphere and a flat surface can be represented as F = 4πRγ, Durjaguin approximation. In this paper, influence of surface roughness (R_ms: 0.25～12.8nm), surface energy (40～69mJ/m²) and relative humidity (4% and 40%) on micro tip adsorption is investigated. Consequently, in this study, it is clarified that surface roughness of the sample has strongly affected to the adsorption force. For the precise measurement of adsorption force, surface roughness at least less than 3nm is required.

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Effects of an acid phosphate compound having an acrylic group on various metal surface were studied with respect to adhesive properties of acrylic adhesive. Results had shown that substrates treated with the primer which contains acid phosphate compounds were superior to untreated substrate.XPS spectra revealed the formation of strong ionic interactions between phosphate groups and metal surfaces. These formation could be achieved even if a metal oxide layer existed on a metal surface. Angular dependence of XPS spectra revealed that acrylic groups of acid phosphate compounds faced toward outsaide surface. It was supposed that acid phosphate compounds containing acrylic groups were expected to react to metals with the phosphate groups to make ionic interactions and react to adhesives with acrylic groups which face outside surface, to be involved polymerzation; as a result bond strength increased and failure mode was improved.

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Polysiloxane -block- polyimides with alchoxysilyl functionalities in polysiloxane segments, prepared from diethoxymethylsilane and polysiloxane -bolck- polyimides withvinyl group in polysiloxane segments by hydrosilylation reaction, were successfullysynthesized, and the thermomechanical and adhesive properties were studied. The alchoxysilyl groups were carried out crosslinking reaction by hydrolysis and following condensation. The resulting materials were insoluble even in polar solvents. The crosslinked density was increased with polysiloxane composition. After the crosslinking reaction, the copolymer with 50wt% of polysiloxane composition exhibited larger tensile modulus and lower thermal expansion coefficient. In addition, the thermal decomposition temperature was improved enormously in comparison with corresponding non-crosslinked copolymer. Furthermore, the copolymer films coated onto grass-plate was exhibited good adhesive properties even under highly temperature and under highly humid condition.

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