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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
- Weight average relative molecular mass, polydispersity and gel permeationchromatograms during the degradation process were obtained. 发现聚合单元为随机分布的壳聚糖样品，其降解是均匀的；
- Different grades of crystal polystyrene molding pellets range from 150,000 to 350,000 weight average molecular weight. 不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150，000-350，000。
- 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。
- Objective:To determine the distribution of weight averag e molecular weight in the Phytolacca acinosa Roxb. 目的:测定商陆多糖的重均相对分子质量。
- 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。
- Different grades of crystal polystyrene molding pellets range from 150, 000 to 350, 000 weight average molecular weight. 不同牌号的结晶聚苯乙烯模塑粒料平均分子量范围从150,000-350,000。
- IAS 2 allows the FIFO or weighted average cost formulas. 实验结果表明该方法优于传统的加权平均系数组合方法。
- 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。
- General expressions of molecular parameters, such as the number and the weight average degrees of polymerization and the polydispersity index, were derived. 重均分子量和多分散指数在稳态条件下的通解。上述通解普适于各种不同的两物种体系，只是通解中的系数随反应机理的不同而异。
- 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。
- The weighted average fee maximum assistance levels will be adjusted annually. 加权平均学费最高资助额会每年予以调整。
- Note： Based on the weighted average outstanding shares of each year. 註一：按各年度發行在外加權平均股數計算。
- The weight average molecular weights for the three fish gelatins are given in Table 4. 这三种鱼胶的重均分子量在表四中给出。
- Dave's Molar Mass and Percent by Mass Calculator 分子量及元素百分比计算器
- The weight average of relative molecular weight of hydroxypropyl sulfated oligo-konjac glucomannan is l595D, the number average of relative molecular weight is 1572D, and PDI (MW/MN) is 1.01 by GPC. 凝胶色谱测定重均相对分子质量1595D，数均相对分子质量1572D，分子量分布PDI(MW/MN)为1.;01，表明样品是单分散性分子量分布。
- The mensuration of molar mass of organic acid 有机酸摩尔质量的测定
- Tare Weight: in accordance with the quantity and package type, CIQ will sample(1-5)% bales from each lot of cotton and compute the average tare weight by weighted average. 皮重：根据数量的多少、装类型的差异，CIQ将从每批货中随机抽取(-5)的包数，以加权平均确定平均皮重。
