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PVC-silica hybrids: effect of sol–gel conditions on the morphology of silica particles and thermal mechanical properties of the hybrids

✍ Scribed by Fakhreia A. Al-Sagheer; Zahoor Ahmad

Publisher
Springer
Year
2011
Tongue
English
Weight
619 KB
Volume
61
Category
Article
ISSN
0928-0707

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## Abstract Polyimide (PI)/silica hybrid membranes with high contact angles were prepared through the __in situ__ sol–gel process. The precursor, poly(amic acid) with controlled block chain length, was synthesized using 4,4′‐diaminodiphenyl ether (ODA), 3,3′,4,4′‐benzophenone‐tetracarboxylic dianhy