The ratio of different protons obtained from the integrated peak areas of solution 1HNMR signals tallies with the calculated values obtained from macroblend composition. 1HNMR results indicate that the blends of polychloroprene (CR) with polyethylene vinylacetate (EVAc) shows homogenity in mixing throughout their entire compositions. The increase in absorption frequency for C-O-C asymmetric stretching with increased contents of CR in the EVAc/CR blends indicates dipolar interactions between polar vinylacetate and chloride groups.
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Kundu et al. (1996) studied this question.
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