viscosity average molecular weight meaning in English
粘均分子量
Examples
- Lactide were investigated . the key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times , stannous octoate concentration and polymerization time . the thermal stabilizing agent did not significantly affect the polymer molecular weight . the polymer with a viscosity average molecular weight beyond 200000 was fairly reproducible by optimizing the polymerization conditions . it was found that poly
单体重结晶次数辛酸亚锡浓度聚合时间等条件均是影响聚合物特性粘数的重要因素。热稳定剂对聚丙交酯的分子量几乎没有影响。优化聚合条件可以获得粘均分子量大于200000的聚丙交酯材料，聚合结果具有良好的重复性。 - Increasing ultrasound intensity in the range of cavitation threshold and cavitation peak value , decreasing monomer concentration and increasing the temperature make the induction period shorter . under optimized reaction conditions , the conversion of ba can reach 90 % in 11 min at high n2 flow rate the viscosity average molecular weight of the obtained pba reaches 5 . 24 106 . the molecular weight of pba varies with ultrasonic irradiation time , indicating that the ultrasonic induced emulsion polymerization is dynamic and quite complicated , polymerization of monomer as well as degradation of polymer occurs concomitantly
一、实现了无常规化学引发剂存在下的超声辐照引发丙烯酸正丁酯( ba )间歇乳液聚合，制备了pba纳米粒子，在11min内转化率达到90 ，分子量达5 . 24 10 ~ 6 ，随反应时间的延长而降低，表明超声辐照引发乳液聚合是一个动态的复杂过程，单体的聚合和聚合物的降解同时发生。