The ESR Study of PMMA Propagating Radical in Bulk Polymerization Process

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (6): 879.

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The ESR Study of PMMA Propagating Radical in Bulk Polymerization Process

MAO You-Gang, WANG Guo-Bin, ZHENG Ying-Guang, SHEN Jia-Cong

Institute of Theoretical Chemistry, Mm University, Changchun, 130023

Received:1992-07-02 Revised:1992-12-02 Online:1993-06-24 Published:1993-06-24

Abstract

Abstract: The ESRspectra of PMMAin bulk polymerization process have been obtained and simulated by using the models of Gaussian distribution about the two stable conformations Aand B.The results show that both the ratio of Aand Bconformations, and the average tilt angle of Bconformation decreased with half-height width of the Gaussian distribution as the indicative of the microviscosity of reaction system.The change was discussed with respect to the thermodynamics and dynamics.

Key words: MMA, Bulk polymerization, Radical ESR

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MAO You-Gang, WANG Guo-Bin, ZHENG Ying-Guang, SHEN Jia-Cong. The ESR Study of PMMA Propagating Radical in Bulk Polymerization Process[J]. Chem. J. Chinese Universities, 1993, 14(6): 879.

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The ESR Study of PMMA Propagating Radical in Bulk Polymerization Process

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