中华医学超声杂志

应用化学 ›› 1990, Vol. 0 ›› Issue (3): 76-78.

• 研究简报 • 上一篇    下一篇

核磁共振法研究CH2＝CHSi(OEt)3的水化反应

戴伟文, 童瑜晔, 费伦   

  1. 复旦大学分析测试中心 上海 200433
  • 收稿日期:1990-06-30 修回日期:1989-12-11 出版日期:1990-06-10 发布日期:1990-06-10

ON THE HYDRATION OF CH2＝CHSi(OEt)3 BY NMR METHODS

Dai Weiwen, Tong Yuyie, Fei Lun   

  1. Research Center of Analysis & Measurement, Fudan University, Shanghai 200433
  • Received:1990-06-30 Revised:1989-12-11 Published:1990-06-10 Online:1990-06-10

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摘要： 高强水泥的生产近年来巳成为许多国家发展水泥生产的一个主要方向。在水泥中加入有机单体可以改善混凝土的质量,如加重量比为3%的有机硅烷偶联剂乙烯基三乙氧基硅烷CH2＝CHSi(OEt)3(简称VTES)于水泥中,即可在较大程度上增加水泥石的强度[1]。

关键词: 核磁共振法, 乙烯基三乙氧基硅烷, 水泥增强剂, 水解反应, 聚合反应

Abstract: The hydrolysis of CH2＝CHSi(OEt)3 has been studied. by 1HNMR measurement. Thereaction was considered to be catalyzed by both H+ and OH-; and the stronger the acidityor the basity, the more rapid the reaction. The reactant also influenced the hydrolysisreaction, especially in the initial period. Some information about the polymerization of thehydrolysis product of silane were obtained.

Key words: 2H NMR, vinyltriethoxysilane, strengthening agent for cement, hydrolysis, polymerization

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