Poly(ethylene oxide imide) segmented copolymer (PEO-PI) membranes were crosslinked by the chemical reaction between ethylene glycol diglycidyl ether and benzylalcohol groups of diamine moieties in polyimide segments at high temperatures. Sorption and diffusion of penetrants took place in poly(ethyle
โฆ LIBER โฆ
Sorption and pervaporation properties of sulfonyl-containing polyimide membrane to aromatic/non-aromatic hydrocarbon mixtures
โ Scribed by Hongyuan Wang; Toshinari Ugomori; Kazuhiro Tanaka; Hidetoshi Kita; Ken-Ichi Okamoto; Yasunori Suma
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 231 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0887-6266
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High molecular weight polyimide was successfully prepared from thianthrene-2,3,7,8-tetracarboxylic acid-5,5,10,10-tetraoxide (TADATO-4A) and 3,7-diamino-2,8(6)-dimethyldibenzothiophene sulfone (DDBT) via the Yamazaki-Higashi phosphorylation method in the presence of triphenyl phosphite (TPP) and pyr