高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (3): 592.

• 研究简报 • 上一篇    

双(N-甲基乙酰氨基)二甲基硅烷的合成与扩链效应

胡洪国1, 郑强1,2, 林薇薇1, 陈春荣1, 陶小乐2   

  1. 1. 浙江大学高分子科学与工程学系,杭州 310027;
    2. 杭州之江有机硅化工有限公司研发中心,杭州 311203
  • 收稿日期:2004-03-05 出版日期:2005-03-10 发布日期:2005-03-10
  • 通讯作者: 郑　强(1960年出生),男,教授,博士生导师,主要从事高聚物流变学和多相多组份高分子体系结构与性能研究.E-mail:zhengqiang@zju.edu.cn E-mail:zhengqiang@zju.edu.cn

Synthesis and Chain-extending Effect of Bis(N-methyl-acetamido) dimethylsilane

HU Hong-Guo1, ZHENG Qiang1,2, LIN Wei-Wei1, CHEN Chun-Rong1, TAO Xiao-Le2   

  1. 1. Department of Polymer Science & Engineering, Zhejiang University, Hangzhou 310027, China;
    2. R & D Center, Hangzhou Zhijiang Silicone Co., Ltd., Hangzhou 311203, China
  • Received:2004-03-05 Online:2005-03-10 Published:2005-03-10

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关键词: N-甲基乙酰氨基硅烷, 扩链剂, 有机硅化合物, 低模量, 密封胶

Abstract: A linear difunctional silylamide, bis(N-methylacetamido)dimethylsilane(MADMS), was synthesized by the reaction of dimethyldichlorosilane and N-methylacetamide. The chemical structure of the product was confirmed by IR, 1H NMR and elemental analysis. When MADMS was mixed with PDMS, both the molecular weight and the viscosity of the mixture, as measured by GPC and viscometer, were found to be increased significantly in the initial period, which was ascribed to the hydrolysis efficiency of MADMS. The results show that MADMS possessed the chain-extending ability and can be used for mass application.

Key words: Bis(N-methylacetamido)dimethylsilane, Chain extender, Organosilane compound, Low modulus

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