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Effect of the concentration of phenyldichlorophosphine and reaction time on the intrinsic viscosity of copolymers of methyl methacrylate with phenyldichlorophosphine
Author(s) -
Łaszkiewicz Bogumił
Publication year - 1964
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.1964.070080512
Subject(s) - copolymer , methyl methacrylate , intrinsic viscosity , viscosity , polymer chemistry , materials science , methacrylate , reduced viscosity , polymer , composite material
The relation between the intrinsic viscosity of methyl methacrylate–phenyldichlorophosphine copolymers and the copolymerization time were investigated. The copolymers of methyl methacrylate and phenyldichlorophosphine were prepared at mole ratios of 1:10.012, 1:0.026, and 1:0.062, respectively. The experiments indicate that the intrinsic viscosity of copolymers increases at the first stage of copolymerization and then decreases after reaching a maximum. These changes of the intrinsic viscosity can be explained by degradation and by small relative activity of organophosphorus comonomers.