【摘要】 用直接酯化法合成了丙烯酸二十二酯单体 (BA)。研究了单体聚合条件如溶剂、引发剂种类、引发剂和单体质量分数等对聚丙烯酸二十二酯 (PBA)相对分子质量及相对分子质量分布的影响 ,考察了该聚合物对原油的降凝降粘作用。结果表明 ,具有长支链烷基的梳状PBA能有效地改善新疆克 乌线混合原油及大庆原油的低温流动性能。在适当的聚合条件下得到的PBA使新疆克 乌线混合原油 (稠油与稀油体积比为 70∶30 ) 15℃时的粘度降低 74 1% ,使大庆原油的凝点降低 2 1℃ ,2 0℃时的粘度降低 79 8%。更多还原

【Abstract】 n Behenyl acrylate monomer (BA) was synthesized by direct esterification of acrylic acid and behenyl alcohol, and poly( n behenyl acrylate)(PBA) was obtained by free radical polymerization of BA in solution The effect of polymerization conditions was discussed, such as solvent type, initiator type, initiator and monomer contents on relative molecular mass and its distribution of polymer PBA was a good flow improver for Xinjiang Ke Wu mixed oil ( V (viscous oil)∶ V (light oil)=70∶30) and Daqing crude oil Viscosity of Xinjiang mixed oil containing 100×10 -6 PBA was reduced by 74 1%(15 ℃). The pour point of Daqing crude oil containing 200×10 -6 PBA was decreased by 21 ℃, and viscosity was reduced by 79 8%(20 ℃).更多还原