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Synthesis of hyperbranched polybenzimidazoles and their membrane formation

โœ Scribed by Hongjie Xu; Kangcheng Chen; Xiaoxia Guo; Jianhua Fang; Jie Yin


Book ID
108208087
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
610 KB
Volume
288
Category
Article
ISSN
0376-7388

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Halo formation in asymmetric polyetherim
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For the first time, we have reported a halo (ring) formation occurred in the cross-section of integrally skinned asymmetric membranes. These membranes were wet-spun from solutions containing 30 and 33 wt % of 95/5 and 90/10 polyetherimide (PEI)/polybenzimidazole (PBI). Both Imaging X-ray Photoelectr