ISSN:
0021-8995
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
Certain properties of the membranes obtained by simultaneous-irradiation grafting of α,β,β-trifluoroethylenesulfonyl fluoride (TFESF) onto low-density polyethylene (LDPE) were studied. Swelling, water uptake, electric conductivity, and transport number of the grafted membrane were measured, moreover, thermal and chemical stability were investigated. These properties were found to be mainly dependent on the degree of grafting. The electric conductivity and swelling of the membrane at less than ca. 25% grafting were found to be very low because the distribution of ion-exchange groups is heterogeneous as revealed by X-ray microscopy of the grafted films. At more than 25% grafting, the membranes showed good electrochemical and thermal properties, acceptable for the practical use as cation exchange membranes.
Zusätzliches Material:
9 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/app.1988.070360106
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