Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, 2318 Yuhangtang Road, Hangzhou 311121, China.
Chem Commun (Camb). 2019 Feb 26;55(18):2613-2615. doi: 10.1039/c8cc10179e.
The preparation of linear polysilsesquioxanes having Si-OH side groups is not trivial, because direct condensation of multifunctional silanol derivatives would lead to branched or crosslinked polymers. We have successfully prepared an unsymmetrical double-decker silsesquioxane with a silyl hydride function at one end and two silanol groups at the other. Linear POSS polymers having Si-OH side groups are obtained selectively in good yields. The properties and potential applications are briefly presented.
具有 Si-OH 侧基的线性聚倍半硅氧烷的制备并不简单，因为多功能硅醇衍生物的直接缩合会导致支化或交联聚合物。我们已经成功地制备了一种具有一端硅氢官能团和另一端两个硅醇基团的不对称双层笼型倍半硅氧烷。选择性地以良好的收率得到具有 Si-OH 侧基的线性 POSS 聚合物。简要介绍了其性质和潜在应用。
