磺化聚苯硫醚砜膜的耐候性  

Weatherability of Sulfonated Polyphylene Sulfide Sulfone Membrane

作　　者：侯宏英[1] 段继祥[1] 刘松[1] 孟瑞晋 

机构地区：[1]昆明理工大学材料科学与工程学院,昆明650093

出　　处：《工程塑料应用》2015年第2期81-84,共4页Engineering Plastics Application

基　　金：国家自然科学基金项目(51363011);教育部第46批留学归国科研启动基金;云南省高层次引进人才工作经费资助项目(10978125);云南省人才培养项目(14118425);昆明理工大学重点学科建设项目(14078232和14078311)

摘　　要：借助X射线衍射(XRD)、傅立叶变换红外光谱(FTIR)、热重(TG)分析及机械拉伸等测试技术研究了磺化聚苯硫醚砜膜的微观结构及耐候稳定性能。结果表明,XRD图谱及FTIR图谱证实了膜的微观结构;根据TG分析计算得到的磺化聚苯硫醚砜膜的磺化度为52%,与给定的磺化度(50%)基本吻合;此外,磺化聚苯硫醚砜膜还表现出了很好的热稳定性及力学稳定性,膜中硫醚键缓慢氧化成砜基可能是热稳定性和力学稳定性得以改善的微观结构原因。Microstructure and weatherability of sulfonated polyphenylene sulfide sulfone membrane were studied by XRD, FTIR,TGA and mechanical stretching test. The results show that the microstructure of the sulfonated polyphenylene sulfide sulfone membrane is confirmed by XRD and FTIR spectra. Degree of sulfonation of the membrane can be calculated to be 52%according to TGA curve,in agreement with the given value. Additionally,sulfonated polyphenylene sulfide sulfone also possesses satisfying thermal and mechanical weatherability. Slow oxidation of sulfide bond into sulfone within the polymer may be the microstructure reason of higher thermal and mechanical stability.

关 键 词：磺化聚苯硫醚砜 力学稳定性 热稳定性 耐候性 磺化度 

分 类 号：O631[理学—高分子化学]