| 초록 |
This presentation relates the synthesis and characterization of cyclopentylsilanepolyol derivatives such as cyclopentylsilanetriol (1), 1,3-bis(cyclopentyl)-1,1,3,3-disiloxanetetraol (2), 1,3,5,7-tetrahydroxy-1,3,5,7-tetracyclopentylcyclotetrasiloxane (3), and etc. Compounds 1 and 2 were synthesized by hydrolysis of cyclopentyltrimethoxysilane in the presence of acid catalyst. while 3 was synthesized in 39% yield by hydrolysis of cyclopentyltrichlorosilane. Compounds 1, 2 reacted with R3SiCl (R = Me, Vi) to give completely silylated cyclopentylsiloxane derivatives. Vinyl-terminated silicone resins [(C5H9SiO3/2)x(RMe2SiO1/2)y : R = Me, Ph, Vi] with the average molecular weights in the range of Mn 600~700 were synthesized by the co-hydrolysis and condensation of cyclopentyltrichlorosilane with chlorosilanes. All compounds were characterized by the analysis of 1H NMR, IR, GPC data. |
