硼硅炔杂化聚合物的合成及耐热性能  

Synthesis and Thermal Property of Boron-Silicon-Acetylene Hybrid Polymer

作　　者：王志德 白小陶 贾宇翔 胡文杰 高明宇 戴赟 刘敏 周权[2] Zhide Wang;Xiaotao Bai;Yuxiang Jia;Wenjie Hu;Mingyu Gao;Yun Dai;Min Liu;Quan Zhou(Beijing Institute of Aeronautical Materials,Beijing 100095,China;Key Laboratory of Specially Functional Polymeric Materials and Related Technology of Ministry of Education,School of Material Science and Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]北京航空材料研究院,北京100095 [2]华东理工大学材料科学与工程学院特种功能高分子材料及相关技术教育部重点实验室,上海200237

出　　处：《高分子材料科学与工程》2022年第10期17-22,共6页Polymer Materials Science & Engineering

基　　金：中央高校基本科研业务费专项资金(50321042017001);国家自然科学基金资助项目(52173074)。

摘　　要：通过分子设计以苯硼酸、二苯基二氯硅烷、三氯乙烯和丁基锂为原料,合成了主链上含硼、硅元素和炔基的耐高温硼硅炔杂化树脂聚(乙炔-苯硼酸-硅烷)(PEBS)。PEBS树脂能溶于多种低极性的溶剂,如丙酮、四氢呋喃等。采用红外光谱、核磁共振、热重分析等方法分析了PEBS树脂的结构、固化行为及耐热性能。结果表明,PEBS树脂的固化峰值温度为285℃,固化反应为C≡C之间的Diels-Alder反应和三环化反应。此外,PEBS树脂在N中的T(质量损失5%时的温度)为609℃,900℃的质量保留率为89.3%。Through molecular design, using benzene boric acid, diphenyl dichloride silane, trichloroethylene and butyl lithium as raw materials, high-temperature borosilicate acetylene hybrid resin poly(acetylene-benzene boric acid-silane)(PEBS) containing boron, silicon element and alkynyl group in the main chains was synthesized. PEBS resin can be dissolved in a variety of low polar solvents, such as acetone, tetrahydrofuran, etc. The structure, curing behavior and heat resistance of PEBS resin were analyzed by FT-IR, NMR and TGA. The results show that the peak curing temperature of PEBS resin is 285 ℃ and the curing reaction is Diels-Alder reaction and tricyclic reaction between C≡C group. In addition, T(5% mass loss temperature)of PEBS resin is 609 ℃ in N, and the mass retention rate is89.3% at 900 ℃.

关 键 词：无机-有机杂化 聚(乙炔-苯硼酸-硅烷) 固化行为 耐热性能 

分 类 号：TQ322.4[化学工程—合成树脂塑料工业]