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可溶性添加物能够增加沥青质胶团的分散度,使之更趋向多分散。The additives could increase the polydispersity of asphaltene colloidal particles as well.

采用激光动态光散射法检测粒度与粒度分布。The particle diameter and its polydispersity were determined with laser dynamic light-scattering method.

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聚合物的多分散分子质量是由于聚合过程中的统计变化。The reason for the polydispersity of polymers lies in the statistical variations persent in the polymerization processes.

试验还表明,相对分子质量较大的有机物并非通量下降的主要因素,有机物的分散性可能是影响通量的主要因素。The result also demonstrates that the primary factor resulting in flux decrease may not be higher organic MW, but polydispersity.

GPC测得共聚物的数均分子量为4934,多分散指数是1.978,具有较窄的分子量分布。The data of GPC indicate that the number-average molecular is 4934 and the polydispersity is 1.978 with a narrow molecular distribution.

种子乳液聚合中,补加单体的量、乳化剂的补加速度等对最终聚苯乙烯乳胶粒粒径和粒径分布均产生较大影响。The additive mass and the accession rate of emulsifier have both effect on average size and polydispersity of the latex during seeded emulsion polymerizing.

着重研究了表面活性剂浓度、引发剂浓度以及无机盐浓度对产物粒径和多分散度的影响。The influence of APG0810 concentration, initiator concentration and salt concentration on particle size and polydispersity of polystyrene has been discussed.

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由于多糖的分子质量对其活性有很大的影响,因而需要测定其分子质量。It is of significance to determine the molecular mass and polydispersity of polysaccharide, which could influence pharmacological activities of polysaccharide.

对原油磁化降粘的机理进行了总结和探讨,认为磁致颗粒团聚及磁场作用下分子有序排列是降粘的主要原因。The mechanism of crude viscosity reduction is summarized and discussed. Wax crystal aggregate under the magnetic field can increase the polydispersity in suspension.

模型模拟结果显示模型计算的分子量及其分布、聚丙烯产量与工业数据较好的吻合。The model contains a single set of kinetic and thermodynamic parameters that accurately predicts the polymer production rate, molecular weight, and polydispersity index.

胶乳加到高岭土悬浮液中能瓦解片状高岭土的聚集,提高了涂料的多分散性,同时增加了涂料的稳定性。Addition of latex to a clay suspension can disrupt the platelet platelet association, also raises the polydispersity of a coating, at the meantime increases coating pigment stability.