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Semicontinuous emulsion copolymerization of acrylonitrile, butyl acrylate, and styrene
Author(s) -
Šňupárek Jaromír,
Krška František
Publication year - 1977
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1977.070210822
Subject(s) - acrylonitrile , copolymer , styrene , polymer chemistry , monomer , reactivity (psychology) , butyl acrylate , materials science , acrylate , ternary operation , emulsion , methyl acrylate , chemistry , polymer , organic chemistry , composite material , pathology , computer science , programming language , medicine , alternative medicine
Semicontinuous emulsion copolymerization of acrylonitrile (M 1 ), butyl acrylate (M 2 ), and styrene (M 3 ) was investigated. The copolymerization proceeded under the conditions used with a high degree of conversion, whereby a stationary state characterized by a constant monomer mixture composition and a constant composition of the arising copolymer was achieved. From the analytically estimated free monomers and arising copolymer compositions, the reactivity ratios for the pair AN/BA r 12 = 0.71, r 21 = 1.17 and for the pair AN/Sty r 13 = 0.06, r 31 = 0.28 were calculated. The applicability of the reactivity ratios found was verified also for the ternary system acrylonitrile/butyl acrylate/styrene.