摘要
聚碳硅烷类有机硅树枝状聚合物综合了有机硅和树枝状大分子的特点,成为近代化学界研究的热点,本文详细介绍了以四甲基四乙烯环四硅氧烷为核,烯丙基溴化镁和甲基氢二氯硅烷为增长单体的二代树枝状大分子的合成步骤,并对其进行了相关表征。
Polycarbosilane have taken more and more chemist＇s interest because it combined the characters of both polycarbosilane and dendfimer in recent years. In this paper, by a succession of alternate platinum - catalyzed hydrosilation of all vinyl groups with HSiMeCl2, as well as akenylation with all ylmagnesium bromide, a kind of polycarbosilane dendrimer based on 2,4,6,8 - tetramethyl - 2,4,6,8 - tetmvinyl- 2,4,6,8 - tetrsila- 1,3,5,7 - tetraoxcyclooctane was synthesized and provided the second generation（G2）as divergent growth of siloxane- based dendrimers. It was analyzed by IR, DTA- TG, Viscosity and testified as an accurate dendrimer.
