文献类型：期刊文献

英文题名：o-Carborane-Containing Poly(siloxane-arylacetylene)s With Thermal and Thermo-Oxidative Stabilities

作者：Jiang, Yun[1];Li, Xiaojie[1];Huang, Farong[1];Zhou, Yan[1];Du, Lei[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China

年份：2015

卷号：52

期号：6

起止页码：476

外文期刊名：JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY

收录：;EI(收录号：20151800800547);WOS:【SCI-EXPANDED(收录号:WOS:000353502700009)】；

语种：英文

外文关键词：Poly(siloxane-arylacetylene); thermo oxidative stability; thermosetting polymer; carborane-containing polymer; thermal stability

摘要：A series of poly(siloxane-arylacetylene)s with o-carborane in the backbone (CB-PSOA)s were prepared by the coupling reaction between poly(siloxane-arylacetylene) (PSOA) and decaborane (B10H14) in the presence of CH3CN. CB-PSOAs were characterized by Fourier-transform infrared (FT-IR) spectroscopy, nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and Pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS). The results show that the average amount of carborane units in a CB-PSOA chain could be raised when the molar ratio of B10H14 to PSOA is increased from 0.6 to 2.4. The crosslinking reaction could be carried on at above 140 degrees C for CB-PSOAs. The CB-PSOA thermosets show excellent thermo oxidative stability with over 85% residue yield at 1000 degrees C in air.