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Keywords Poly DL Lactide Ring opening Polymerization Average Molar Mass; 聚DL丙交酯;开环聚合;平均摩尔质量;
Z+1 average molar mass Z＋1均分子量
viscosity average relative molecular weight mass 粘均相对分子质量
It was concluded that the parameters of dilatational viscoelasticity changed with the increase of molar mass of fractions or dilatational frequency. 结果表明，伊朗重质减渣馏分的扩张粘弹性参数随馏分的增重以及扩张频率增大而递变。
The molar mass (MM) of polymer HPAM suitable for use in polymer flood in middlle-low permeability reservoirs of Daqing is studied. 对可用于大庆油田中低渗油藏聚合物驱的聚合物HPAM的适宜分子量进行了研究。
Results showed that the purity of such chitosan is 95%,the degree of deacetylation is 92%,and the viscosity average molecular weight is 85000.The AMC has remarkable anti-aging effects. 结果得到的AMC,含量为95%25,脱乙酰度92%25,粘均分子量为85000,其具有显著的抗衰老作用。
A device for determining molar mass with freezing point depression was improved,which consists of the Dewar bottle,sample container,Beckmann thermometer,and motor stirrer. 介绍一个改进的凝固点下降法测定摩尔质量实验装置,它由保温瓶、凝固点杯、贝克曼温度计、电动搅拌器等几部分构成。
viscosity average molecular weight 粘均分子量
With zinc D, L-lactate as catalyst, which is safe to body, PDTC with Mw as 700000g/mol was prepared when the reaction mixture was irradiated for 75min under 180W microwave power. This method was proved to be ideal for preparing PDTC with high molar mass. 作者使用对人体安全可靠的D，L-乳酸锌为催化剂，进行DTC的微波开环聚合，在180W的微波功率下辐照75min，得到了重均分子量为700000g/mol的PDTC，这一方法是合成高分子量PDTC的理想方法。
Viscosity Average Molecule Weight 黏均摩尔质量
Polystyrene polymethacrylate diblock copolymers with well defined structures asw- ell as controlled and narrow molar mass distribution were obtained from the lower mass polystyrene macroinitiator. 聚苯乙烯 -聚甲基丙烯酸酯嵌段共聚物的分子量可控 ,分子量分布较窄 ,单体转化率较高。
Dave's Molar Mass and Percent by Mass Calculator 分子量及元素百分比计算器
Keywords degraded natural rubber latex;viscosity average relative molecular mass;butylacrylate;copolymerization; 降解天然橡胶胶乳;粘均相对分子质量;丙烯酸丁酯;接枝共聚;
The mensuration of molar mass of organic acid 有机酸摩尔质量的测定
A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
Research on Polyacrylamide of Ultrahigh Viscosity Average Molecular Weight 超高相对分子质量聚丙烯酰胺的研究
The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。
The mass rally was a total fiasco. 那次群众集会彻底失败。
His income is well below the average. 他的收入大大低于平均水平。