✦ LIBER ✦

Syntheses of poly(ethylene oxide) polyurethane ionomers

✍ Scribed by Xinling Wang; Lei Wang; Hui Li; Xiaozhen Tang; Feng-Chih Chang

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 233 KB
Volume: 77
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(20000705)77:1<184::aid-app24>3.0.co;2-8

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✦ Synopsis

Sulfonated dimethyl fumarate (SDMF) was prepared with dimethyl fumarate (DMF) and sodium hydrogensulfite (NaHSO 3 ). Sodium sulfonate side-chain poly-(ethylene oxide) (SPEO) was synthesized by grafting sodium sulfonate onto the chain of PEO with molecular weights of 400, 600, 800, and 1000. SPEO was used subsequently in step-growth polymerization to give a polyurethane ionomer (SPU). Samples were characterized by element analysis, FTIR, 1 H-NMR, EDX mapping, X-ray, gel permeation chromatography, and impedance analysis. The SPUs exhibited an amorphous structure. The maximum conductivity of the SPU was 1.02 ϫ 10 Ϫ6 S cm Ϫ1 at the room temperature.

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