【Key words】 water reducer; poly carboxyl; water reducer ratio; opolymerization
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The changes of intrinsic viscosity and end carboxyl group content with temperature and time were studied for poly(trimethylene terephthalate)(PTT), PET and CDP.
研究了聚对苯二甲酸丙二醇酯( PTT) , PET ,C DP在不同温度和时间下的特性粘数和端羧基含量的变化。
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