Gel Point and Mechanism of Gel Formation in Copolymers from Free-Radical Crosslinking Polymerization of Vinyl/Divinyl Monomers

Abstract

Abstract: After discussing the results from the computer simulations of gel point in the vinyl/divinyl monomer free-radical crosslinking polymerization by several typical models, the authors proposed that gel point be distinguished from mechanism of gel formation. The crite-ria of gel point is the appearing of the macromolecule whose average crosslinking density is equal to 1/DP_pwHowever, the gel formation can have two processes of nucleation and growth, where the condition of nucleation is that the average crosslinking density in one macromolecule of a sol becomes1/DP_pw

Key words: Gel point, Gel formation mechanism, Free-radical polymerization, Crosslinking

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LUO Ying-Wu, WENG Zhi-Xue, HUANG Zhi-Ming, PAN Zu-Ren. Gel Point and Mechanism of Gel Formation in Copolymers from Free-Radical Crosslinking Polymerization of Vinyl/Divinyl Monomers[J]. Chem. J. Chinese Universities, 1997, 18(6): 968.

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Gel Point and Mechanism of Gel Formation in Copolymers from Free-Radical Crosslinking Polymerization of Vinyl/Divinyl Monomers

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