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The kinetics of radical copolymerization of acrylonitrile and methylacrylate with tricaprylylmethylammonium chloride as a phase-transfer catalyst

✍ Scribed by Sang-Wook Park; Sam-Seoug Yang; Seung-Hyeun Park

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 213 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19990901)37:17<3504::aid-pola8>3.0.co;2-l

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✦ Synopsis

The phase-transfer radical copolymerization of acrylonitrile (AN) and methylacrylate (MA) with tricaprylylmethylammonium chloride was investigated in Na 2 S 2 O 8 aqueous-organic two-phase system at 25°C and under nitrogen atmosphere. The rate of copolymerization was expressed as the combined terms of quaternary ammonium ion and peroxydisulfate ion in the aqueous phase rather than the fed concentrations of catalyst and Na 2 S 2 O 8 . The observed initial rate of copolymerization was used to analyze the copolymerization mechanism with a cyclic phase-transfer initiation step in the heterogeneous liquid-liquid system. The monomer reactivity ratio r 1 and r 2 obtained from the analysis of copolymerization mechanism were 1.584 and 0.856, respectively.

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