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:
The gas permeabilities of three polyacetylene films, prepared from poly[1-(trimethylsilyl)-1-propyne], poly(tert-butylacetylene), and poly(1-chloro-2-phenylacetylene), were studied. Although depending on conditions of polymerization and membrane preparation, typical permeability coefficients P of the polymers to oxygen and nitrogen at 25°C were as follows: poly[1-(trimethylsilyl)-1-propyne], PO2 = 40 × 10-8, PNr2 = 20 × 10-8; poly(tert-butylacetylene), PO2 = 3.0 × 10-8, PN2 = 1.0 × 10-8; poly(1-chloro-2-phenylacetylene), PO2 = 9.4 × 10-10, PN2 = 2.0 × 10-10 cm3(STP) · cm/(cm2 · s · cm Hg). Thus PO2 of a poly[1-(trimethylsilyl)-1-propyne] film is the largest among those ever known, and the values of poly(tert-butylacetylene) and poly(1-chloro-2-phenylacetylene) films are also fairly large. Influences of polymer structure, measuring temperature, and so forth on the PO2 and PN2 of these polyacetylene films were studied. The possibility of applying these films to oxygen enrichment of air are being discussed.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1985.070300426
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