SYNTHESIS AND PROPERTY CHARACTERIZATION OF PHTHALAZINONE-BASED SULFONATED COPOLYIMIDES

PAN Haiyan; LIANG Yongfang; LI Jianfeng; ZHU Xiuling; JIAN Xigao; XUAN Genhai

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SYNTHESIS AND PROPERTY CHARACTERIZATION OF PHTHALAZINONE-BASED SULFONATED COPOLYIMIDES

Research Article | 更新时间：2021-03-19

- SYNTHESIS AND PROPERTY CHARACTERIZATION OF PHTHALAZINONE-BASED SULFONATED COPOLYIMIDES
- Acta Polymerica Sinica Issue 8, Pages: 742-745(2007)
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- Published：20 August 2007，
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PAN Haiyan, LIANG Yongfang, LI Jianfeng, ZHU Xiuling, JIAN Xigao, XUAN Genhai. SYNTHESIS AND PROPERTY CHARACTERIZATION OF PHTHALAZINONE-BASED SULFONATED COPOLYIMIDES. [J]. Acta Polymerica Sinica (8):742-745(2007)
DOI：

PAN Haiyan, LIANG Yongfang, LI Jianfeng, ZHU Xiuling, JIAN Xigao, XUAN Genhai. SYNTHESIS AND PROPERTY CHARACTERIZATION OF PHTHALAZINONE-BASED SULFONATED COPOLYIMIDES. [J]. Acta Polymerica Sinica (8):742-745(2007) DOI：

摘要

将磺化二胺单体4

4′-二（4-氨基苯氧基）联苯-3

3′-二磺酸（BAPBDS）

含二氮杂萘酮结构的二胺1

2-二氢-2-(4-氨基苯基)-4-［4-(4-氨基苯氧基)-苯基］-二氮杂萘-1-酮(DHPZDA)和1

8-萘四甲酸二酐(NTDA)进行缩合聚合反应

通过改变磺化二胺单体BAPBDS的含量

合成了一系列不同磺化度的聚酰亚胺（SPIs）.采用FT-IR

1H-NMR表征了聚合物的结构

热重分析仪（TGA）研究了聚合物的耐热稳定性.以间甲酚为溶剂

通过溶液浇铸法成膜研究了该系列聚合物膜的性能.结果表明

与其它磺化聚酰亚胺相比

该系列磺化聚酰亚胺的溶解性以及在高温下（80℃）水解稳定性有较大提高.

Abstract

A new kind of sulfonated copolyimides (SPIs) with higher hydrolysis stability containing both of naphthalene and phthalazinone moieties in polymer's main chain were successfully synthesized from 4

4′-bis(4-aminophenoxy)biphenyl-3

3′-disulfonic acid (BAPBDS)

2-dihydro-2-(4-aminophenyl)-4-［4-(4-aminophenoxy)phenyl］-phthalazin-1-one (DHPZDA) and 1

8-naphthalenetetracarboxylic dianhydride (NTDA) via direct polymerization

which are potentially utilized as proton exchange membrane in PEMFC.The obtained sulfonated polymers (SPIs) had high molecular weight with the inherent viscosity ranged from 0.41 to 1.00 dL/g in concentrated (95%) sulfuric acid when samples varied from 20% to 140% of sulfonation degree.The chemical structure of the SPIs was carefully characterized by FT-IR and 1H-NMR

and the thermo-behavior of copolymers by thermalgravimeteic analysis (TGA) was also investigated.The yellow

transparent and tough membranes cast from m-cresel solutions of the SPIs were obtained

which were utilized to investigate the physicochemical properties of these new copolymers. The data demonstrated that the membranes had better solubility and hydrolysis stabilities than the other analogeous SPIs.

关键词

磺化聚酰亚胺质子交换膜二氮杂萘酮水稳定性

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