蝌蚪型POSS嵌段共聚物的合成及其质子交换膜的性能

doi:10.11901/1005.3093.2016.417

材料研究学报

2017, Vol. 31

Issue (4): 314-320 DOI: 10.11901/1005.3093.2016.417

研究论文

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蝌蚪型POSS嵌段共聚物的合成及其质子交换膜的性能

张杰^1,²(

), 陈芳³, 马晓燕³

1 黔南民族师范学院化学化工学院都匀 558000
2 西京学院应用统计与理学系西安 710123
3 西北工业大学理学院西安 710129

Synthesis and Property of Proton Exchange Membrane Based on Tadpole-type POSS Block Copolymer

Jie ZHANG^1,²(

), Fang CHEN³, Xiaoyan MA³

1 School of Chemistry and Chemical Engineering, Qiannan Normal University for Nationalities Duyun 558000, China
2 Department of Applied Statistics and Science, Xijing University, Xi'an 710123, China
3 School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710129, China

引用本文:

张杰, 陈芳, 马晓燕. 蝌蚪型POSS嵌段共聚物的合成及其质子交换膜的性能[J]. 材料研究学报, 2017, 31(4): 314-320.
Jie ZHANG, Fang CHEN, Xiaoyan MA. Synthesis and Property of Proton Exchange Membrane Based on Tadpole-type POSS Block Copolymer[J]. Chinese Journal of Materials Research, 2017, 31(4): 314-320.

全文: PDF(1517 KB) HTML

摘要:

以聚倍半硅氧烷(POSS)为引发剂,用原子转移自由基聚合方法(ATRP)合成聚甲基丙烯酸甲酯与聚苯乙烯嵌段共聚物(PMMA-b-PS)为臂的蝌蚪型POSS嵌段共聚物,并使用红外光谱、核磁共振及GPC等手段分析其结构。结果表明,合成的蝌蚪型POSS嵌段共聚物结构规整。以蝌蚪型POSS嵌段共聚物为基体制备质子交换膜,研究了离子交换容量、吸水率及溶胀率,质子传导率及热性能。结果表明,蝌蚪型POSS嵌段共聚物质子交换膜在高温具有较高的质子传导率、较高的初始热分解温度和耐高温性能。

关键词 ：有机高分子材料, 质子交换膜, 原子转移自由基聚合方法(ATRP), 蝌蚪型嵌段共聚物, 聚倍半硅氧烷

Abstract：

Tadpoles-type POSS block copolymer with polystyrene block copolymer and polymethyl methacrylate as arms (PMMA-b-PS) was synthesized by atom transfer radical polymerization (ATRP) method with polysilsesquioxane (POSS) as the initiator and polystyrene block copolymer and polymethyl methacrylate as raw material, and then was characterized by means of FTIR, ¹H NMR and GPC. The results show that the tadpoles-type POSS block copolymer was synthesized successfully. Proton exchange membrane based on the tadpoles-type POSS type block copolymer was prepared, of which the ion exchange capacity, water uptake and swelling rate, proton conductivity and thermal performance was as sessed . The results show that proton exchange membrane based on the tadpole-type POSS block copolymer has higher proton conductivity at high temperature as well as high initial decomposition temperature and high temperature resistant performance.

Key words： organic polymer materials PEM ATRP tadpole shaped block copolymer POSS

收稿日期: 2016-07-20

ZTFLH:

O631.1+1

基金资助:陕西省教育厅自然科学研究项目(16JK2240),黔南民族师范学院2016年度引进高层次人才研究专项项目(qnsyrc201615),黔南民族师范学院高分子材料功能化产学研基地(Qnsyk201604),西京学院2016校级大学生创新创业训练计划项目(127152016148)

作者简介:

作者简介张杰,男,1978年生,博士

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图1 用ATRP法合成蝌蚪型POSS嵌段共聚物

图2 蝌蚪型POSS嵌段共聚物的红外光谱图

图3 蝌蚪型POSS嵌段共聚物的1H NMR

图4 蝌蚪型POSS嵌段共聚物的GPC 图谱

表1 蝌蚪型POSS嵌段共聚物的分子量和嵌段比

表2 蝌蚪型POSS嵌段共聚物质子交换膜的离子交换容量

图5 质子交换膜在不同温度下的吸水率

图6 质子交换膜在不同温度下的水合数λ

图7 质子交换膜在厚度方向上的溶胀率

图8 质子交换膜在不同温度下的质子传导率

图9 质子传导率与水合数之间的关系

图10 POSS-PMMA-b-SPS质子交换膜的质子传递机理

图11 蝌蚪型POSS嵌段共聚物的TGA曲线

表3 蝌蚪型POSS嵌段共聚物的热性能

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