SOLVENT EFFECT ON GELATION IN THE RADICAL POLYMERIZATION OF TRIALLYL ISOCYANURATE

Autor:	Tsuneo Nakanishi, Yoshinari Sumiyama, Yoshihiro Takayama, Hiroyuki Aota, Akinori Kameyama, Akira Matsumoto
Rok vydání:	1999
Předmět:	Gel point Polymers and Plastics Chemistry Kinetics Radical polymerization Solution polymerization General Chemistry Methyl benzoate Photochemistry Solvent chemistry.chemical_compound Polymerization Polymer chemistry Materials Chemistry Ceramics and Composites Solvent effects
Zdroj:	Journal of Macromolecular Science, Part A. 36:1537-1545
ISSN:	1520-5738 1060-1325
DOI:	10.1081/ma-100101613
Popis:	Radical solution polymerization of triallyl isocyanurate was conducted in methyl benzoate or hexyl benzoate as good or poor solvent, respectively, using AIBN as initiator at 60°C. An increased rate of polymerization, enlarged primary chain length, and promoted gelation were observed in the poor solvent. The actual gel point was compared with the theoretical one; the discrepancy between these points was great, although no substantial solvent effect was detected. These results are discussed in comparison with the results obtained from the polymerizations of its isomer triallyl cyanurate and diallyl terephthalate, a typical diallyl ester. The swelling ratio of the gel obtained just beyond the gel point was quite high, suggesting no microgelation up to the gel point conversion even in the solution polymerization.
Databáze:	OpenAIRE
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