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Ion Beam Irradiation—An Efficient Method to Modify The Subnanometer Scale Microstructure of Polymers In A Controlled Way

Published online by Cambridge University Press:  15 February 2011

Xinglong Xu ,
M. R. Coleman ,
U. Myler  and
P. J. Simpson
Xinglong Xu
Affiliation:
Dept. of Chemical & Environmental Engineering, University of Toledo, Toledo, OH 43606-3390, USA, xxu@eng.utoledo.edu
M. R. Coleman
Affiliation:
Dept. of Chemical & Environmental Engineering, University of Toledo, Toledo, OH 43606-3390, USA
U. Myler
Affiliation:
Dept. of Phys. & Astronomy., Univ. of Western Ontario, London, Ontario, Canada, N6A 3K7
P. J. Simpson
Affiliation:
Dept. of Phys. & Astronomy., Univ. of Western Ontario, London, Ontario, Canada, N6A 3K7
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Abstract

The microstructural evolution of polymers induced by ion beam irradiation was investigated using gas permeation measurements with different molecule size gases and positron annihilation spectroscopy (PAS) using variable-energy positron. Simultaneous large increases in gas permeability and permselectivity of polymer-ceramic composite membranes modified by 180 keV H+ ion irradiation indicated that ion irradiation of polymers can modify the microstructure of polymer at sub-nanometer level in a controlled way. PAS results were consistent with the gas permeation results. The results of this work demonstrated ion beam irradiation has a promising application potential in the separation industry.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 540: Symposium N / Microstructural Processes in Irradiated Materials , 1998 , 255
Copyright
Copyright © Materials Research Society 1999

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