六氟丙烯等离子体聚合物的ESR研究

摘要/Abstract

摘要： 等离子体聚合物中存在高浓度的自由基已是众所周知的^[1,2]。Millard^[3]得出等离子体聚四氟乙烯的自由基浓度为10²⁰spins/g,其室温真空中的半衰期仅为16天。本文报导等离子体聚六氟丙烯的自由基反应动力学、反应的活化能及不同温度下的反应速率常数。

关键词: 顺磁共振谱, 等离子体聚合物, 六氟丙烯

Abstract: The free radical concentration of plasma polymerized hexafluoropropene (PPHFP) wasfound to be 9.97?10¹⁹ spins/gram using CuSO₄·5H₂O single-crystal as a standard. Thehalf-life of the radical in Ar gas was near half a year at room temperature.There was oneradical in every two PPHFP chains. The activation energy and rate constants of the radicaldeterioration at different temperature have been calculated. Twenty hyperfine lines in ESRspectra were recorded for gascous products during plasma polymerization. The radicals ofgascous products have similar stability.

Key words: ESR spectra, Plasma polymer, Hexafluoropropene

王岱珂, 陈捷. 六氟丙烯等离子体聚合物的ESR研究[J]. 应用化学, 1989, 0(5): 89-92.

Wang Daike, Chen Jie. ESR INVESTIGATION OF PLASMA POLYMERIZED FILM OF HEXAFLUOROPROPENE[J]. Chinese Journal of Applied Chemistry, 1989, 0(5): 89-92.

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六氟丙烯等离子体聚合物的ESR研究

ESR INVESTIGATION OF PLASMA POLYMERIZED FILM OF HEXAFLUOROPROPENE

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