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Citation:
Zhang Keda, Liu Nanan, Tian He. PREPARATION OF METHYLSILICONE RUBBER GRAFTED WITH POLYSTYRENE FOR OXYGEN ENRICHMENT[J]. Chinese Journal of Applied Chemistry,
;1992, 9(1): 92-94.
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High oxygen permeable methylsilicone rubber membranes have been prepared by graft reaction on it with styrene. The results showed that the oxygen permeability of the membrane varies with the dimethylsilicone content in the copolymer. The oxygen permeability coefficient PO2=3.0×10-8cm3cm/cm2·s·cmHg and separation factor αO2/N2=2.25 at 75% content of dimethylsiloxane. The oxygen permeation rate, JO2, of the membrane increased with the increase of molecular weight of the grafted methylsilicone rubber.
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