Citation: GONG Shuling, LU Xueran, LU Xianming, CHEN Yuanyin. LINEAR POLYSILOXANE WITH DIBENZO-18-CROWN-6 MOIETIES AS LIQUID MEMBRANE CARRIER*[J]. Chinese Journal of Polymer Science, ;1995, 13(2): 173-179. shu

LINEAR POLYSILOXANE WITH DIBENZO-18-CROWN-6 MOIETIES AS LIQUID MEMBRANE CARRIER*

Received Date: 24 January 1994

A modified method of preparing crown functionalized linear polysiloxane has beendescribed. 4'-Allyldibenzo-18-crown-6 was subjected to hydrosilylation withmethyldichlorosilane, followed by polycondensation with silanol-terminatedpolydimethylsiloxane to give the title crown functionalized linear polysiloxane. Thetransport properties of sodium, potassium, and ammonium salt through a bulk liquidmembrane system using the new type of crown functionalized linear polysiloxane as acarrier were investigated. It is worthy to point out that the carrier can be used repeatedly at least six runs with no apparent change in the tranport rate of potassium ion.
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