The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
研究了聚对苯甲酸丙(PTT),PET,CDP在不同温度和时间下特性粘数和端羧基含化。
The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
研究了聚对苯甲酸丙(PTT),PET,CDP在不同温度和时间下特性粘数和端羧基含化。
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