Monomer reactivity ratios for the system polyethylene fumarate/methyl methacrylate have been determined. The experimental methods used in measuring these ratios for simple linear systems had to be severely modified. While the technique evolved does not give results of great accuracy, the ratios obtained are in agreement with those expected from consideration of the radicals involved. Ethylene fumarate polymers have been characterized in several different ways, and it was shown that, although prepared from maleic anhydride, substantial conversion to the isomeric fumarate form had occurred.
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Gordon et al. (1955) studied this question.
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