Thermal degradation characteristics of polysulfones with benzoxazine end groups

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• 作者：Tugba Orhan^a ; Sahin Ates^b ; Jale Hacaloglu^a ; ^{jale@metu.edu.tr} ; Yusuf Yagci^b
• 关键词：Polysulfone ; Polybenzoxazine ; Thermal degradation ; Pyrolysis mass spectrometry
• 刊名：Journal of Analytical and Applied Pyrolysis
• 出版年：2012
• 期刊代码：46_01652370
• 类别：ch
• 出版时间：March, 2012
• 卷：94
• 期：Complete
• 页码：146-152
• 文件大小：1192 K

摘要

Thermal degradation behaviors of phenol and benzoxazine end-capped polysulfone macromonomers (PSU-OH and PSU-P-a) and pre-cured PSU-P-a in the absence and presence of aniline and phenol based benzoxazine monomer (P-a) were investigated via pyrolysis mass spectrometry. A significant increase in thermal stability of both polysulfone and polybenzoxazine chains upon polymerization of benzoxazine end groups was determined compared to phenol-ended polysulfones and aniline based monofunctional polybenzoxazine. Thermal stability of both chain segments depends on concentration of benzoxazine monomer and the chain length of the polysulfone chain.