Guiver, MD Robertson, GP Dai, Y Bilodeau, F Kang, YS Lee, KJ Jho, JY Won, J 2024-01-21T09:36:56Z 2024-01-21T09:36:56Z 2021-09-01 2002-12-01 0887-624X https://pubs.kist.re.kr/handle/201004/138966 The commercial polyimide Matrimid was modified by bromination for the purpose of improving its membrane-transport properties as a gas-separation material and providing functional group reactivity for further modifications. The unmodified and brominated. polymers were characterized by elemental analysis and one-dimensional and two-dimensional NMR, which revealed that one bromine atom per repeat unit was incorporated regioselectively onto the indane aromatic ring. The thermal and physical properties of the polymers before and after bromination were also investigated. The gas-transport properties of the unmodified and brominated. polymers were compared. (C) 2002 Government of Canada. Exclusive worldwide publication rights in the article have been transferred to Wiley Periodicals, Inc. English JOHN WILEY & SONS INC MEMBRANES SEPARATION PERMEABILITY Structural characterization and gas-transport properties of brominated matrimid polyimide Article 10.1002/pola.10516 1 JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.40, no.23, pp.4193 - 4204 JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 40 23 4193 4204 scie scopus 000179149200007 2-s2.0-0037058045 Polymer Science Polymer Science Article MEMBRANES SEPARATION PERMEABILITY matrimid polyimide bromination gas transport functionalization of polymers NMR structure-property relations