傅里叶变换红外光谱
硼
化学
热分解
热重分析
硅氢加成
聚合
高分子化学
核化学
材料科学
有机化学
催化作用
无机化学
化学工程
聚合物
工程类
作者
Nianxin Jiang,Zhengfa Zhou,Weibing Xu,Haihong Ma,Fengmei Ren
标识
DOI:10.1088/2053-1591/ac0178
摘要
Abstract Boron-containing phenyl silicone oil (BCPSO) with terminal boronic hydroxyl groups was synthesized by acid-catalyzed balance condensation polymerization using phenylboric acid, dimethyldichlorosilane and diphenyldichlorosilane as raw materials. The structure of BCPSO was characterized by 1 H, 13 C and 29 Si nuclear magnetic resonance (NMR) and Fourier transform infrared spectrometry (FTIR). The thermal degradation behavior of BCPSO was tested by thermogravimetry-Fourier transform infrared spectrometry (TG-FTIR) analysis. The TG-FTIR results indicated that thermal decomposition of BCPSO had significant hysteresis over that of phenyl silicone oil. The empty electron orbital of boron atom could accept electron of peroxide free radical to generate conjugation effect at initial degradation stage of BCPSO, and this phenomenon was confirmed by 11 B NMR, FTIR and Raman spectroscopies. As a result, temporarily stable intermediate was formed which increased the heat resistant of BCPSO.
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