SYNTHESIS OF SILICONS MONOMERS WITH PHENYLALKYL OR (4-CHLOROMETHYL) PHENYLAIKYL SUBSTITUENTS AND THERMAL STABILITY OF THEIR POLYCONDENSATES

LIN Si-cong; LU Yun; LI Xiao-hu; GAO Yan-qin; ZHU Yong

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SYNTHESIS OF SILICONS MONOMERS WITH PHENYLALKYL OR (4-CHLOROMETHYL) PHENYLAIKYL SUBSTITUENTS AND THERMAL STABILITY OF THEIR POLYCONDENSATES

Research Article | 更新时间：2021-03-19

- SYNTHESIS OF SILICONS MONOMERS WITH PHENYLALKYL OR (4-CHLOROMETHYL) PHENYLAIKYL SUBSTITUENTS AND THERMAL STABILITY OF THEIR POLYCONDENSATES
- Acta Polymerica Sinica Issue 1, Pages: 81-89(1992)
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- Published：20 February 1992，
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LIN Si-cong, LU Yun, LI Xiao-hu, GAO Yan-qin, ZHU Yong. SYNTHESIS OF SILICONS MONOMERS WITH PHENYLALKYL OR (4-CHLOROMETHYL) PHENYLAIKYL SUBSTITUENTS AND THERMAL STABILITY OF THEIR POLYCONDENSATES. [J]. Acta Polymerica Sinica (1):81-89(1992)
DOI：

LIN Si-cong, LU Yun, LI Xiao-hu, GAO Yan-qin, ZHU Yong. SYNTHESIS OF SILICONS MONOMERS WITH PHENYLALKYL OR (4-CHLOROMETHYL) PHENYLAIKYL SUBSTITUENTS AND THERMAL STABILITY OF THEIR POLYCONDENSATES. [J]. Acta Polymerica Sinica (1):81-89(1992) DOI：

摘要

通过相应烯烃的硅氢化反应

合成了-(CH2)n-SiX3(n=2

4;X=Cl.OCH3)及ClCH2-(CH2)NSiX3(n=2.3;X=Cl.OCH3)等两类新型有机硅化合物.比较了它们水解缩聚产物的热稳定性.结果表明

所合成的两类硅单体均具预定的化学结构.在H2PtCl6-P(C6H5)3的催化下

硅氢化反应系按反-马尔可夫尼科夫规则进行.另外

这两类有机硅单体的水解缩聚产物的热稳定性与芳基的位置(β、γ或δ位)有关而以在β位的为最高.

Abstract

As a part of the studies on functional silicone

the monomers

Y (CH2)nSiX3.were synthesized by means of hydrosilylation reaction of corresponding vinyl monomers. Details of the synthe-sis are descr1bed. IR and 1H-NMR

from which the chemical structure of the monomers and the direction of the hydrosilylation reaction were determined

are shown.Moreover

TGA results of the polymers formed by hydrolytic polycondensation of the monomers are also given. According to the TGA resuts the decomposition temperature of these polymers are all above 250℃ and the polymers with aryl group at β-carbon atom have a higher decomposition temperature than those polymers with aryl group at γ or δ position.

关键词

功能性有机硅硅氢化反应热稳定性

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1Department of Polymeric Materials and Engineering,College of Material and Energy,Guangdong University of Technology

汕头大学理学院化学系

汕头大学理学院化学系广州510006汕头大学理学院化学系汕头

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