Semipermeable polymeric film membrane

Details Semipermeable polymeric film membrane Semipermeable polymeric film membrane

1982-09-29

1986-09-30

Sadowski, David

Liquid purification or separation

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Material

21050041, B01D 1304

Patent

active

046145869

ABSTRACT:
A semipermeable membrane having a surface comprised of a poly(arylacetylene) having at least a part of its benzene nuclei introduced with sulfonic acid groups. The poly(arylacetylene) is represented by the following structural formula (I): ##STR1## wherein X stands for Cl, Br or CH.sub.3, R stands for H or CH.sub.3 and n is a positive integer. The semipermeable membrane may be obtained by subjecting a membrane formed of the poly(arylacetylene) of the formula (I) to sulfonation conditions or by sulfonating the poly(arylacetylene) of the formula (I), and forming the sulfonated product into membrane.

REFERENCES:
patent: 4302336 (1981-11-01), Kawaguchi et al.
patent: 4326958 (1982-04-01), Kawahara et al.
T. Masuda et al, "Polymerization of 1-Chloro-2-Phenylacetylene Induced by UV Irradiation of Mo(CO).sub.6 ", Journal of Polymer Science, Polymer Chemistry Edition, vol. 20, 1043-1050, 1982.

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