P. Vijayaraghavan, B. S. Reddy
Aug 23, 1999
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0
Influential Citations
28
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Journal
Journal of Macromolecular Science, Part A
Abstract
4-Chlorophenyl acrylate (CPA) and glycidyl methacrylate (GMA) copolymers having different copolymer compositions were synthesized in 1,4-dioxane using benzoyl peroxide as initiator at 70 ± 0.5°C. Using 1H-NMR spectroscopy, the composition of the two monomers in the copolymers were calculated by comparing the integral values of the aromatic and alifatic proton peaks. The reactivity ratios (average r1 = 0.03 ± 0.04 and r2 = 2.27 ± 0.55) were calculated by Fineman-Ross, Kelen-Tudos and extended Kelen-Tudos methods. The copolymers were characterized by 1H and proton decoupled 13C-NMR spectroscopies. Gel permeation chromatography was employed for estimating the Mw and Mn and Mw/Mn of the homo- and co-polymers. Thermal analysis showed copoly(CPA-GMA) (49:51) to be less stable (345°C) than poly(CPA) (417°C) at 50°C. DSC was utilized in determining the glass transition temperature. The 49:51 copolymer was chosen for making adhesives by curing with diethanolamine in chloroform. The cured resins were tested for the...