Premium
Study of radiation‐induced graft copolymerization of vinyl acetate onto ethylene‐ co ‐propylene rubber
Author(s) -
Fang YueE,
Lu Xiao Bing,
Wang Shan Zhi,
Zhao Xia,
Fang Fang
Publication year - 1996
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/(sici)1097-4628(19961226)62:13<2209::aid-app4>3.0.co;2-n
Subject(s) - grafting , copolymer , vinyl acetate , polymer chemistry , materials science , ethylene propylene rubber , natural rubber , elongation , ultimate tensile strength , monomer , activation energy , irradiation , polymer , styrene , chemistry , composite material , organic chemistry , physics , nuclear physics
The radiation‐induced graft copolymerization of vinyl acetate (VAc) onto ethylene‐ co propylene rubber (EPR) has been studied in methanol with radiation of cobalt‐60. The effects of irradiation dose, dose rate, concentration of monomer, Cu ++ concentration, and temperature on the degree of grafting were investigated. The dependence of the initial grafting rate on dose rate, monome, and Cu ++ concentration were found to be 1.0, 1.95, and 0.5 order, respectively. The apparent activation energy was calculated to be 49 kJ/mol. Mechanical properties of the grafted polymer were investigated as a function of the grafting percentage. The tensile strength increases and elongation of break decreases with the increase of the degree of grafting in the region of low grafting percentage (≅ 10%). © 1996 John Wiley & Sons, Inc.