应用化学 ›› 1992, Vol. 0 ›› Issue (3): 7-10.

• 研究论文 • 上一篇    下一篇

甲基氢硅氧烷/二甲基硅氧烷二元共聚物及其齐聚氧化乙烯接枝物的合成

倪建龙, 林云青, 王佛松   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1990-12-31 修回日期:1991-10-29 出版日期:1992-06-10 发布日期:1992-06-10
  • 基金资助:
    国家自然科学基金资助课题

SYNTHESIS OF DUAL COPOLYMER OF METHYLHYDROSILOXANEDIME-THYLSILOXANE AND ITS GRAFT COPOLYMER WITH OLIGOOXYETHYLENE SIDE CHAIN

Ni Jianlong, Lin Yunqing, Wang Fosong   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1990-12-31 Revised:1991-10-29 Published:1992-06-10 Online:1992-06-10

摘要: 本文采用质子酸催化剂合成出含Si-H键的线型聚(甲基氢硅氧烷/二甲基硅氧烷)中间体。讨论了体系中微量水、封端剂用量及产物处理方法对聚合物分子量的影响。将此中间体与α-烯丙基齐聚乙二醇甲醚反应,NMR和IR结果均表明得到了带有氧化乙烯结构侧链的硅氧烷接枝共聚物。

关键词: 八甲基环四硅氧烷, 四甲基环四硅氧烷, 开环聚合, 氢化硅烷化反应

Abstract: The ring opening copolymerization of D4 (octamethylcyelotetrasiloxane) and D4H (tetramethyleyelotetrasiloxane) was studied. The linear copolymers were obtained using toluene sulfonic acid as catalyst.The micro amounts of H2O presented in reaction system was found to be a chief factor influencing the average molecular weight of the product. The molecular weight of polysiloxane decreased markedly on addition of hexamethyl disiloxane (HMDS). Polysiloxanes with olgooxyethylene side chain which might be used as polymer electrolyte after eomplexing with alkali metal salts were obtained through hydrosilylation of the above mentioned polysiloxane and α-allyl oligooxyethylene ether.

Key words: octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, ring opening polymerization, hydrosilylation