不同结构星型聚合物防蜡剂的防蜡率研究

Study on efficiency inhibiting paraffin of star shape polymer with different structure paraffin inhibitor

用季戊四醇、丙三醇、二元酸、二元醇、一元酸和一元醇等合成了一系列不同支链数目、不同支链长度和不同极性基团比例的星型结构聚合物防蜡剂,评价了不同结构防蜡剂的防蜡率。结果表明:星型结构聚合物防蜡剂的支链数目为4、极性基团比例为27.9%、相对分子质量为7500、加量为2000×10-6时,在煤油石蜡溶液中的防蜡率达40.5%。

A series of polymer paraffin inhibitor with star shape structure have been synthesized from pentaerythrite, propanetriol binary acid and dibasic alcohol monoacid and monobasic alcohol which have different number of branch chain and different length of branch chain and different proportion of polar group, efficiency inhibiting paraffin of different structure paraffin inhibitor was evaluated. Result shows that efficiency inhibiting paraffin was 40.5% in kerosene-paraffin solution when the number of branch chain star shape polymer was four and proportion of polar group was 27.9% and molecular weight was 7500 and the content was 2000×10^(-6).