作者: Francoise Surivet , Lam Thanh My , Jean Pierre Pascault , Pham Quang Tho
DOI: 10.1021/MA00043A011
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摘要: The hydrolysis and polycondensation reactions involving alkoxysilane groups have been studied in bulk using model compounds prepared from an isocyanate-functionalized prepolymer (γ-aminopropyl)-triethoxysilane. molecular weight evolution the appearance of different condensed species are followed by 29 Si NMR SEC. If is fast, condensation reaction occurs at a upper rate first time slower after. During same reaction, gel determined dynamic mechanical measurements insoluble fractions solvents