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Kinetics of radiation‐induced grafting of 2‐hydroxyethyl methacrylate onto chloroprene rubber membrane and computer verification
Author(s) -
Yuee Fang,
Jun Ji,
Xiaohua Chang,
Li Sun
Publication year - 1999
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199911)48:11<1129::aid-pi274>3.0.co;2-#
Subject(s) - chloroprene , 2 hydroxyethyl methacrylate , grafting , natural rubber , polymer chemistry , methacrylate , membrane , kinetics , materials science , chemical engineering , polymer science , chemistry , copolymer , composite material , polymer , engineering , physics , quantum mechanics , biochemistry
Grafting of 2‐hydroxyethyl methacrylate(HEMA) onto chloroprene rubber(CR) membrane was carried out in ethanol by direct cobalt‐60 gamma ray irradiation. The kinetics of the grafting reaction was studied in respect of concentration of monomer, dose rate and temperature. The experimental results show that the functional relationship equation is dg 0 /dt = k[M] 1.5 Ḋ. The apparent activation energy and collision frequency factor of the grafting polymerization are 46.2 kJ mol −1 and 4.98 × 10 7 mg cm −2 kGy −1 mol −1.5 litre 1.5 , respectively. The work established the relationship of the initial grafting rate (dg 0 /dt) with various effect factors: ln (dg 0 dt) = 17.7 − 5560(1/T) + 1.5 ln [M] + ln Ḋ. This equation is also verified for the first time by a software named SMR, which function is using multiple linear regression to calculate the regression coefficient of a linear equation. © 1999 Society of Chemical Industry