The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
聚对苯二甲酸丙二醇酯(PTT),PET,CDP在不同温度和时间下
特
粘数和端羧基含量变化。
The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
聚对苯二甲酸丙二醇酯(PTT),PET,CDP在不同温度和时间下特粘数和端羧基含量变化。
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