A convenient method for the synthesis of poly(butylene succinate) (1) of high molecular weight has been developed. This polyester was prepared readily by the distannoxane-catalyzed polycondensation of succinic acid (2) with 1,4-butanediol (3) in decalin at 190 °C under azeotropic condition. The polycondensation proceeded in decalin-melted polymer two-phase, giving 1 with the number average molecular weight of 150000.
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Takahashi et al. (2000) studied this question.
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