用~1H-NMR和~(13)C-NMR核磁共振技术研究了聚芳硫醚砜(PASS)的结构,并通过~(13)C-~1H异核相关谱提供的信息确定了其~1H谱和~(13)C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 ~(13)C-NMR were employed to investigate the special phenomenon and to characterize the structure of PASS, which were further confirmed by using 2D ~(13)C-~1H 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.
参考文献
| [1] | Huadong Wang;Jie Yang;Shengru Long;Xiaojun Wang;Zheng Yang;Guangxian Li .Studies on the thermal degradation of poly (phenylene sulfide sulfone)[J].Polymer Degradation and Stability,2004(2):229-235. |
| [2] | Hwang GJ.;Ohya HH. .Preparation of anion-exchange membrane based on block copolymers Part 1. Amination of the chloromethylated copolymers[J].Journal of Membrane Science,1998(2):195-203. |
| [3] | Hwang Gab-Jin;Nagai Toshiyuki;Ohya Haruhiko .Ion exchange membrane based on block copolymers. Part III: Preparation of cation exchange membrane[J].Journal of Membrane Science,1999(1):61-65. |
| [4] | Liu Y.;Ji Q.;Riffle JS.;McGrath JE.;Geibel JF. Kashiwagi T.;Bhatnagar A. .Influence of polymerization conditions on the molecular structure stability and physical behavior of poly(phenylene sulfide sulfone) homopolymers[J].Polymer: The International Journal for the Science and Technology of Polymers,2000(13):5137-5146. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%