含硅芳炔单体的流变性及聚合物热分解  

Rheological property of silicon-containing arylacetylenes and thermal degradation of their polymers

作　　者：谭德新[1] 徐远[1] 王艳丽[2] 疏瑞文[1] 邢宏龙[1] TAN De-xin XU Yuan WANG Yan-li SHU Rui-wen XING Hong-long(School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001 ,China School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001 ,China)

机构地区：[1]安徽理工大学化工学院,淮南232001 [2]安徽理工大学材料科学与工程学院,淮南232001

出　　处：《固体火箭技术》2016年第5期697-702,共6页Journal of Solid Rocket Technology

基　　金：国家自然科学基金(51477002;51303005);安徽省高校自然科学基金重点项目(KJ2013A087;KJ2013A095);安徽理工大学博士基金

摘　　要：借助流变仪研究了苯基三苯乙炔基硅烷(PTPES)、乙烯基三苯乙炔基硅烷(VTPES)、二苯基二苯乙炔基硅烷(BPBPES)3种单体及其聚合物(TSAR)的流变性能,并利用热分析技术分析了共聚物的反应动力学,建立了热分解机理函数。流变分析表明,3种单体加工窗口超过150℃,具有良好的加工性能;热重分析显示,800℃时聚合物残炭率在70%左右;8种动力学分析证实,聚合物热分解反应级数n=4,反应活化能E=131.2 k J/mol。The rheologieal properties of phenyl （triphenylethynyl） silane （ PTPES ）, vinyl （triphenylethynyl） silane （ VTPES）, diphenyl（diphenylethynyl） silane（BPBPES） three monomers and their polymers （TSAR） were studied by rheometer. At the same time, the degradation reaction kinetics of TSAR was analyzed and the degradation mechanism was also proposed by kinetic theory. The results show that three monomers have an excellent processability with beyond 150 ℃ process window by rheological analysis. Char yield obtained by TG was about 70% at 800 ℃. The reaction order was 4 and reaction activation energy was E= 131.2 kJ/mol by 8 different kinetic analysis methods.

关 键 词：苯基三苯乙炔基硅烷 乙烯基三苯乙炔基硅烷 二苯基二苯乙炔基硅烷 流变性能 反应动力学 热分解机理 

分 类 号：V258[一般工业技术—材料科学与工程]