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Super-selective polysulfone hollow fibre membranes for gas separation: assessment of molecular orientation by Raman spectroscopy

Gordeyev, Sergey and Nikolaeva, G.Y. and Prokhorov, K.A. and Withnall, Rob and Dunkin, Ian and Shilton, Simon (2001) Super-selective polysulfone hollow fibre membranes for gas separation: assessment of molecular orientation by Raman spectroscopy. Laser Physics, 11 (1). pp. 82-85. ISSN 1054-660X

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Abstract

It has been shown that the polarized Raman scattering method previously developed for quantitative analysis of molecular orientation in polyethylene can be applied to polysulfone hollow fibre membranes. The orientation parameters for the in-plane vibration of the benzene ring in the active layers of the membranes were determined for different processing conditions of the fibres. The results reported here confirm the fact, revealed previously by IR spectroscopy, that the spinning of membrane fibres at high shear rates may induce anisotropy at the molecular level in the active layer.

Item type: Article
ID code: 35314
Keywords: fibre membranes , gas separation, Raman scattering , spectroscopy, Chemistry, Chemical engineering, Instrumentation, Industrial and Manufacturing Engineering, Atomic and Molecular Physics, and Optics, Condensed Matter Physics
Subjects: Science > Chemistry
Technology > Chemical engineering
Department: Faculty of Engineering > Chemical and Process Engineering
Faculty of Science > Pure and Applied Chemistry
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 02 Nov 2011 16:04
Last modified: 05 Sep 2014 13:01
URI: http://strathprints.strath.ac.uk/id/eprint/35314

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