✦ LIBER ✦
Preparation of novel membrane from dianhydride-modified polystyrene with controlled pore size on micro- and macrolevels
✍ Scribed by S. Chatterjee Ganguly; B. C. Bhattacharyya
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 708 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0021-8995
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✦ Synopsis
A technique has been developed to prepare crosslinked, porous membrane from a chemical modification of polystyrene. Polystyrene was chemically modified by crosslinking with pyromellitic dianhydride in nitrobenzene using a Friedel-Crafts acylation reaction in the presence of AlCl 3 at 100ЊC. Solid-state cross polarization/magic angle spinning NMR of powdered membrane was reported. TGA of the membrane was verified in air and in nitrogen. The morphologies of the membranes were analyzed.