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Polymerization and copolymerization of methyl α‐acetylaminoacrylate
Author(s) -
Masuda Seizo,
Minagawa Keiji,
Ogawa Hiroyuki,
Tanaka Masami
Publication year - 2000
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/1521-3935(20000901)201:14<1787::aid-macp1787>3.0.co;2-g
Subject(s) - copolymer , polymerization , polymer chemistry , chemistry , acrylic acid , styrene , tetrahydrofuran , solvent effects , solvent , solution polymerization , radical polymerization , solvation , organic chemistry , polymer
Methyl α‐acetylaminoacrylate ( 1 ) is easily soluble in various organic solvents and water. Radical polymerization of 1 was kinetically investigated in acetonitrile and distilled water. In both solvents, 1 obeys a conventional model of radical polymerization. The application of the linear solvation energy relationship proposed by Taft et al. to the polymerization rates of 1 in various organic solvents revealed that the major factors governing the rates are polarity and polarizability of the solvent. The copolymerization of 1 with acrylic acid in water was not influenced very much by pH, although homopolymerization of acrylic acid was greatly dependent on pH. Parameters r 1 = 3.04, r 2 = 0058, Q 1 = 6.03, and e 1 = 0.52 were obtained in the copolymerization of 1 (M 1 ) and styrene (M 2 ) at 50°C in tetrahydrofuran with AIBN as the initiator. The obtained Q and e values suggest that the α‐acetylamino group has no polarizing action and significant resonance effect.