PREPARATION OF METHYLSILICONE RUBBER GRAFTED WITH POLYSTYRENE FOR OXYGEN ENRICHMENT

Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (1): 92-94.

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PREPARATION OF METHYLSILICONE RUBBER GRAFTED WITH POLYSTYRENE FOR OXYGEN ENRICHMENT

Zhang Keda, Liu Nanan, Tian He

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1990-12-25 Revised:1991-03-23 Published:1992-02-10 Online:1992-02-10

Abstract

Abstract: 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(-8)cm³cm/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.

Key words: oxygen enrichment membrane, methylsilicone rubber, graft copolymerization, styrene

Zhang Keda, Liu Nanan, Tian He. PREPARATION OF METHYLSILICONE RUBBER GRAFTED WITH POLYSTYRENE FOR OXYGEN ENRICHMENT[J]. Chinese Journal of Applied Chemistry, 1992, 0(1): 92-94.

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PREPARATION OF METHYLSILICONE RUBBER GRAFTED WITH POLYSTYRENE FOR OXYGEN ENRICHMENT

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