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论文类型：期刊论文

发表时间：2009-02-15

发表刊物：MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS

收录刊物：SCIE、EI

卷号：157

期号：1-3

页面范围：1-5

ISSN号：0921-5107

关键字：Chloromethylation; Poly (phthalazione ether sulfone); Anion exchange membrane; Vanadiun redox battery

摘要：Chloromethylated poly (phthalazione ether sulfone) (CMPPES) material was prepared with chloromethyl ether as chloromethylating regent and sulfuric acid as solvent. The effect of chloromethyl ether quantity on the chlorinity degree of chloromethylation (DCM) of CMPPES was investigated. DCM of CMPPES was in the range of 1.94-2.89 mmol/g. CMPPES were identified with (1)H NMR and TGA. Compared with PPES, the thermal stability of CMPPES decreases obviously. The CMPPES was dissolved in NMP (10wt%) and cast on glass to form a membrane. The final anion exchange membranes were prepared by soaking CMPPES in trimethylatine (33%) to aminate. Ion-exchange capacity (IEC), water content, dimensional stability and membrane area resistance of the anion exchange membranes were investigated. It was found that IEC of final anion exchange membrane was between 1.38 and 2.12 mmol/g, and water content of anion exchange membrane increased with an increase of IEC, however, dimensional stability and area resistance of membranes for 2 M VOSO(4) in 3 M H(2)SO(4) solution decreased. The area resistance was lower than Nafion112. (C) 2008 Elsevier B.V. All rights reserved.