NMR法表征PASS及PASS／NMP溶液结晶过程  

NMR Characterization of PASS and PASS/NMP Crystal Solvent

作　　者：王孝军[1,2] 贾向明[1,2] 王波[2] 候康[2] 杨杰[1,2] 李光宪[2] 

机构地区：[1]四川大学分析测试中心材料科学技术研究所,四川成都610064 [2]四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《高分子材料科学与工程》2009年第11期107-110,共4页Polymer Materials Science & Engineering

基　　金：863资助项目(2007AA03Z561)

摘　　要：用1H-NMR和13C-NMR核磁共振技术研究了聚芳硫醚砜(PASS)的结构,并通过13C-1H异核相关谱提供的信息确定了其1H谱和13C谱中各谱峰的归属,为聚合物的表征提供了依据。并通过1H-NMR对比了PASS与N-甲基吡咯烷酮(NMP)溶液结晶过程前后的结构变化。Polyarylene sulfide sulfone （PASS）, a kind of amorphous polymer, has been reported to be able to form crystal structure in its NMP solution, ^1H and ^13C-NMR were employed to investigate the special phenomenon and to characterize the structure of PASS, which were further confirmed by using 2D ^13C-lH COSY methods. The results provide basis for NMR studies of the corresponding polymers. According to the comparison of the NMR spectrums of PASS/NMP initial dissolved solution and crystallized solution, it can be inferred that the crystal structure is a kind of crystal solvent.

关 键 词：核磁共振 聚芳硫醚砜 结晶溶剂化物 

分 类 号：O482.53[理学—固体物理]