Anionic Ring-Opening Polymerization of Trimethylsiloxy-Substituted 1-Oxa-2,5-disilacyclopentanes: Synthesis of Trimethylsiloxy-Substituted Poly[1-oxa-2,5-disila-1,5-pentanylene]s
作者:Vadim Rinatovich Ziatdinov、Guoping Cai、William P. Weber
DOI:10.1021/ma011991j
日期:2002.4.1
vinyltris(trimethylsiloxy)silane, respectively, by a two-step synthetic process. I, II, and III undergo anionic ring-opening polymerization (AROP) to yield poly[2,2,5-trimethyl-5-trimethylsiloxy-1-oxa-2,5-disila-1,5-pentanylene] (IV), poly[2,5-dimethyl-2,5-bis(trimethylsiloxy)-1-oxa-2,5-disila-1,5-pentanylene] (V), and poly[2-methyl-2,5,5-tris(trimethylsiloxy)-1-oxa-2,5-disila-1,5-pentanylene] (VI), respectively
2,5,5-三甲基-2-三甲基甲硅烷氧基-1-oxa-2,5-二硅环戊烷(I),顺式和反式-2,5-二甲基-2,5-双(三甲基甲硅烷氧基)-1-oxa-2由1,3,5,7-四甲基环四硅氧烷(1,3-二硅环戊烷(II)和2-甲基-2,5,5-三(三甲基甲硅烷氧基)-1-氧杂-2,5-二硅环戊烷(III)制备D 4 H)和乙烯基五甲基二硅氧烷,乙烯基甲基双(三甲基甲硅烷氧基)硅烷和乙烯基三(三甲基甲硅烷氧基)硅烷,是通过两步合成方法完成的。一,二,三进行阴离子开环聚合(AROP)以生成聚[2,2,5-三甲基-5-三甲基甲硅烷氧基-1-oxa-2,5-二硅-1,5-戊烯基](IV),聚[2,5 -二甲基-2,5-双(三甲基甲硅烷氧基)-1-氧杂-2,5-二硅-1,5-戊烯基](V)和聚[2-甲基-2,5,5-三(三甲基甲硅烷氧基)- 1-氧杂2,5-二硅-1,5-戊烯基](VI)。I - VI的特征在于1