Bromination and gas permeability of poly(1‐trimethylsilyl‐1‐propyne) membrane

K. Nagai, A. Higuchi, T. Nakagawa

研究成果: 雜誌貢獻期刊論文同行評審

35 引文 斯高帕斯(Scopus)

摘要

The bromination of poly(1‐trimethylsilyl‐1‐propyne) (PMSP) was carried out by immersing a PMSP membrane in bromine water at 25°C. The bromine mainly reacted at the carbon–carbon double bonds in the backbone chain, and carbon–carbon single bonds were produced, which was determined from the infrared (IR) and ultravilet (UV)–visible analyses. The glass transition temperature of the PMSP is above 350°C, but a new endothermic peak appeared between 50 and 80°C in the differential scanning calorimetry (DSC) curves of all brominated PMSPs. The permeability for 12 gases in the PMSP membrane and its brominated membranes was investigated between 30 and 90°C below 1 atm. With increasing bromine content in the membrane, the permeability coefficient for all gases decreased together with the diffusion coefficient, and the ideal separation factor for the industrially important gas pairs increased at 30°C. A distinct change in slopes at near the endothermic temperature determined by the DSC analysis was observed in Arrhenius plots of the permeability coefficients in all brominated PMSP membranes. © 1994 John Wiley & Sons, Inc.

原文???core.languages.en_GB???
頁(從 - 到)1207-1217
頁數11
期刊Journal of Applied Polymer Science
54
發行號9
DOIs
出版狀態已出版 - 28 11月 1994

指紋

深入研究「Bromination and gas permeability of poly(1‐trimethylsilyl‐1‐propyne) membrane」主題。共同形成了獨特的指紋。

引用此