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Comparison of tensile stress relaxation behavior of graft copolymer of poly(vinyl acetate) with styrene and mechanical mixture of poly(vinyl acetate) with polystyrene
Author(s) -
Soen Toshiichi,
Horino Tzuneo,
Ogawa Yasuo,
Kyuma Koichi,
Kawai Hiromichi
Publication year - 1966
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.1966.070101009
Subject(s) - vinyl acetate , polystyrene , copolymer , styrene , materials science , ultimate tensile strength , polymer chemistry , polymer , relaxation (psychology) , stress relaxation , rheology , composite material , psychology , social psychology , creep
As one in a series of studies relating the rheological behavior of mechanical mixtures of two polymer components to the degree of mixing, the tensile stress relaxation behavior of a graft copolymer of poly(vinyl acetate) with styrene, obtained by 60 Co γ‐irradiation of poly(vinyl acetate) in styrene solution and extraction of homopolymers, was investigated as a function of the fraction of styrene component and compared with that of a mechanical mixture of poly(vinyl acetate) with polystyrene, one of the typical combinations of incompatible components. The results obtained may classify the graft copolymer as a sort of mechanical mixture giving stable mixing even for incompatible components.