Préparation et etude de copolymères triséquencés isoprène et méthacrylate de méthyle

摘要

AbstractA convenient method is described for the synthesis of ABA triblock copolymers having a high vinyl polyisoprene as center block and poly(methyl methacrylate) as end blocks. Dynamic mechanical properties of these copolymers as a function of temperature are compared for different compositions (100, 85, 70, 60, 50, and 30 of rubber) using solvent‐casting methods. Since the morphology is dependent on the method of preparation of the samples, five solvents of different solubility parameters were tested for the same copolymer (i.e., 70 polyisoprene by weight) to show their influence on mechanical behavio