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- 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。
- The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the... 未反应的四氢呋喃经适当处理后可以回收循环使用。
- The average molecular weight and bromine number were used to calculate weightpercent of olefine in petroleum products. 本文提出了由油品平均分子量和溴值计算油品的烯烃百分含量的方法。
- 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。
- The average molecular weight, critical state parameters and acentric factor of the two kinds of coal liquids were calculated as details. 本论文还根据以上基本性质详细计算了神华煤和胜利煤液化油各窄沸点馏分的平均分子量、临界性质和偏心因子。 计算平均分子量考察了七种关联式，推荐采用Gray推荐式等三种关联式。
- This method was compared with that of desulfonation GC and the relative deviation of LAS average molecular weight is less than 0.1%. 所测得的烷基苯磺酸的平均相对分子质量与气相色谱法相比;相对偏差不大于0.;1%25。
- A hindered polyetherketone endcapped with p (t butyl)phenol was synthesized. 1H NMR technique was used to seek for the number average molecular weight of this new polymer. 以对叔丁基苯酚为封端剂，合成带烷端基的多苯基取代联苯型聚醚酮，测定其1H－NMR谱，根据链中芳环质子共振峰与链端基质子峰积分强度比求解分子量。
- The mass loss were similar to those in vitro, and molecular weight changes were the same to those in vitro,but the number average molecular weight did not fit the Pitt?s model. PDLLA膜体内降解重量保持率类似体外，虽然体内的数均分子量不符合Pitt动力学模型，但两条件下分子量变化一致。
- Results show that the collective PMMA-MAA microdomain in the centergradually changes into dispersive spots with reduction in average molecular weight of the seedpolymer PMMA-MAA. 讨论了交联剂、乳化剂对第二阶段聚合地点及粒子形态的影响。
- Experimental results also showed that salt-toleran ability of HABS decreased and solubilization capacity increase with average molecular weight increase. 结果还表明，随着HABS的平均摩尔质量增大，其耐盐能力减小，增溶能力增大；
- 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。
- In a process of preparing a tea extract, the extract is adjusted to 20-80 c, treated with tannase at pH = 4-7 and then subjected to ultrafiltration at 2-90oC using a membrane with an average molecular weight exclusion point of at least 5000 Daltons. 在一个制备茶提取物的工艺中,将茶提取物的温度调节在20-80℃之间, 在ph= 4-7下用丹宁酶处理,然后,用平均分子量至少大于5000道尔顿的滤膜在2-90℃下进行超过滤。
- 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。
- SDJ2 fluid loss additive for oil well cementing is synthesized from water-soluble modified natural polymer HEC with suitable average molecular weight, and the properties of the grout contained SDJ2 is tested in laboratory. 选用合适平均分子量的水溶性天然高分子改性产物羟乙基纤维素(HEC)合成一种油井水泥降失水剂SDJ2,并对添加SDJ2的水泥浆的性能进行了室内评价。
- In this paper, the structure of PCS which contain the structure of polymer chain, average molecular weight, molecular weight distribution snd the structure of non-crystalline was studied in detail by means of ACC, IR, NMR, LLS, VPO, GPC, WAXS, RDF. 本文针对本室合成的PCS,应用光散射(LS)、凝胶色谱(GPC)、原子吸收光谱(ACC)、红外光谱(IR)、核磁共振波谱(NMR)、广角X射线散射(WAXS)和径向分布函数(RDF)分析测试手段,从PCS的高分子链近程结构,远程结构中的分子量以及分子量分布和非晶态短程有序结构方面进行分析,对PCS的结构有了一个系统全面的研究。
- Also use of inert injection environment can increase the average molecular weight of aged samples of PA66. It is concluded that drying in argon is a convenient, cheap, and effective method to reduce degradation. 不同阶段使用氩气的结果显示:在惰性气体下干燥原材料是一个可行、方便而又相对有效的降低塑料老化的方法。
- A Iow molecular weight heparin(LMWH)with average molecular weight of 5600was prepared from low anticoagulant activity heparin(LAAH). Its physicochemical parametersand anticoagulant activity were determined. 以低抗凝肝素为原料制备了平均分子量为5600的低分子肝素，测定了理化指标和抗凝效价。
- The linear relationship between the average molecular weight and Wallace plasticity or Mooney Viscosity is poor owing to the fact that the molecular weight is only one of the factors reflecting Po and V_R. 平均分子量(?) 与华莱士可塑度及门尼粘度之间的线性关系不良,因为分子量只是表现P_0和V_R的因子之一。
- By choosing different graft monomer, control proper graft rate , graft frequency and propping up the average molecular weight of chain, can make various kinds of products with unique performance . 通过选择不同的接枝单体、控制适当的接枝率、接枝频率和支链平均分子量,可以制得各种具有独特性能的产品。
- After reaction with ionic liquids, the amount of saturates, aromatics and resins increase, while asphaltene decreased.This leads to average molecular weight and viscosity of heavy oil decreased. 稠油经离子液体处理后，其饱和烃、芳香烃、胶质质量分数增加，沥青质质量分数明显下降，从而导致稠油的黏度降低，平均分子量减小。
