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Preparation and characterization of sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK)/silica hybrid membranes for direct methanol fuel cell applications

โœ Scribed by Dae Sik Kim; Kwang Ho Shin; Ho Bum Park; Young Moo Lee

Book ID
105735558
Publisher
The Polymer Society of Korea
Year
2004
Tongue
English
Weight
524 KB
Volume
12
Category
Article
ISSN
1598-5032

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Sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK) for proton exchange membranes were prepared by sulfonation of PPESK using fuming acid and sulfuric acid agent. The separation of SPPESK was carried out by precipitating in ether and then in acetone. The degree of sulfonation (DS) was deter

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## Abstract This study describes the preparation and characterization of new ionomer blend membranes containing sulfonated poly(ether imide) (SPEI) and poly(ether sulfone) (PES). Thermogravimetric analysis indicated that the obtained blend membranes were more thermally stable than the parent SPEI.