Abstract:ABSTRACT:The block copolymer formation from the exchange reaction between polycarbonate (PC) and poly(ethylene-co-butylene) diol (POH) occurring during melt mixing was studied. The exchange reaction proceeded by the attack of active chain ends of hydroxyl-terminated POH on the inner carbonate groups of PC. The reaction was accelerated in basic condition in the presence of a hindered amine. The formation of block copolymer was confirmed by 1 H-NMR analysis. The proceeding of the exchange reaction was analyzed w… Show more
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