CAJ | 학술논문

以丁二酸、丁二醇为原料，通过直接缩聚反应合成了高分子量二酸丁二醇酯。并将聚丁二酸丁二醇酯（PBS）同聚对苯二甲酸乙二醇酯（PET）在不同温度下熔融共混。测定了不同组分共混物的熔点和水降解性。聚合物熔融峰随着共混时间的增加渐渐的不移。这说明PBS和PET热降解和酯交换反应随着共混温度的增加而同时发生。共混物的降解性与芳香组分的含量和链段长度都有关。
이정이산、정이순위원료，통과직접축취반응합성료고분자량이산정이순지。병장취정이산정이순지（PBS）동취대분이갑산을이순지（PET）재불동온도하용융공혼。측정료불동조분공혼물적용점화수강해성。취합물용융봉수착공혼시간적증가점점적불이。저설명PBS화PET열강해화지교환반응수착공혼온도적증가이동시발생。공혼물적강해성여방향조분적함량화련단장도도유관。
High molecular weight poly (butylene succinate) was obtained from succinic acid and 1,4-butanediol through a polycondensation process. The block copolymers of poly( butylene succinate)(PBS) and poly (ethylene terephthalate)(PET) were synthesized by a melting process at different times. Thermal properties and hydrolytic degradability were investigated over a wide range of compositions. The melting peak (Tm) gradually moved to lower temperature with increase in melt processing time. It can be seen that the thermal degradation and the transesterification between PBS and PET will occur with increase in mixing time and the hydrolytic degradability of the copolyesters depends on both the terephthalate unit in the composition and the average block length of the aromatic unit.