ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Ion-exchange membranes were synthesized by radiation-induced grafting of methyl-α,β,β-trifluoroacrylate (MTFA) and also by cografting of MTFA with propylene. Although a larger grafting yield was obtained by cografting, the number of repeating units introduced in a unit volume of the graft films was unchanged. The electrical conductivity of the cografted polymer film was higher than that of the film grafted with MTFA alone when compared at the same number of repeating units. This result was well correlated with the difference in distribution of graft chains in polymer films observed by ESCA and EPMA. The more homogeneous the distribution was, the higher the electrical conductivity. It was suggested that an alternating copolymerization of MTFA with propylene was responsible for the homogeneous distribution of graft chains obtained by cografting.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1985.070300331
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