• 粘度测定复合树脂pvc的粘分子量

    Molecular weight of PVC composite resin was determined by viscometer.

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  • 辅助催化剂B加入灵活调整产品的数均分子量

    The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the amount of cocatalyst B.

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  • 研究离子液体稠油黏度组成分子量影响

    The effects of ionic liquids on viscosity, hydrocarbon composition and average molecular weight of heavy oils are investigated.

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  • 介绍用凝胶色谱法测定高聚物分子量分子量分布。

    It introduced the gel chromatography to determine the average molecular weight and molecular weight distribution of high polymer.

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  • 分子量太小,不利于产物吸附水化,平均分子量太大。

    Lower average molecular weight of LGV samples was unfavourable for the adsorption and hydration.

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  • 温度升高聚合反应转化率增加聚合产物数均分子量降低

    The number-average molecular weight of the polymer decreased, the molecular weight distribution was slightly wide, but the conversion increased as the polymerization temperature increasing.

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  • 测试结果表明低温短期老化沥青质量增加分子量增加。

    The results indicated that the asphalt quality and its average molecular weights were increased after ageing of short duration at low temperature.

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  • 样品水解,测得右旋糖酐中右旋糖酐的分子量分子量分布

    The average molecular weight and molecular weight distribution were determined with acid hydrolyzed iron dextran samples.

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  • 考察聚合条件共聚物分子量醋酸乙酯(VA)质量分数的影响

    Effects of polymerization conditions on the copolymer molecular weight and VA weight content were studied.

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  • 甘油基作标准求出聚醚分子量结果表明此法准确、方便快速

    The glyceryl was used as standard to calculate NumberAverage Molecular Weight of polyether. The result showed that it was accurate, convenient and high speed method.

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  • 合成对此进行严格控制和调整使LGV产物具有合理的分子量分布。

    The reaction temperature should be controlled in order to make LGV samples have proper average molecular mass.

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  • 产品分子量分子量分布于平反应器和微观最大混合反应器之间

    The average molecular weight and its distribution of polystyrene obtained in microsegregation reactor are also between those of piston flow...

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  • 产品分子量分子量分布亦介于平推流反应器微观最大混合反应器之间

    The average molecular weight and its distribution of polystyrene obtained in microsegregation reactor are also between those of piston flow and maximum micromixing...

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  • 利用粘度测定丙烯酸分子量红外光谱分析接枝共聚物结构

    This paper studies the average molecular weight of branched chain of poly ( acrylic acid) by viscosity method. The structure of graft copolymer is also measured by IR method.

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  • 首先,数分子量转化率增加线性增长,且活性聚合理论计算分子量相符

    The molecular weight of obtained polystyrene increases linearly with the overall conversion and agrees with the theoretically predicted molecular weight.

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  • 通过化学工艺计算得到了各馏分的分子量饱和蒸汽压,进而挥发度

    Via chemic technique calculate, we get the average molecular weight and saturation vapor tension, thereby, we calculate the volatility.

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  • 结果表明核磁共振内标求聚氧丙烯甘油醚类化合物数均分子量快速方便准确

    The results show that It is a high speed, convenient and accurate method as compared with end-group analytical method.

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  • 所得聚合物分子量单体转化率增加而线性增长而且分子量单峰分布。

    The number averaged molecular weights of the obtained polymers increased linearly with monomer conversion, and molecular weight distributions were unimodal throughout the reaction.

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  • 水解条件水解明显影响但是分子量正电荷肽相对含量的影响较

    Hydrolyzing conditions affect DH markedly but have only weak influence on average molecular weight and positively charged peptide content.

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  • 此外结果表明转化阶段均分子量转化率改变,聚合反应温度有关

    In addition, the obtained results showed that the number average molecular weight is independent of the conversion and only relative to the reaction temperature at lower conversion stage.

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  • 温度升高,聚合反应转化率增加, 但产物的数分子量分子量分布明显变化;

    The number-average molecular weight and molecular weight distribution of the polymer were not sensitive to temperature.

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  • 粘度法测定氧化聚乙烯分子量测定方法、步骤影响因素详细介绍。

    Use viscometry to determine viscosity-average molecular weight of oxidated polyethylene wax and introduce the measurement, process and effect factors in detail.

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  • 不同牌号结晶聚苯乙烯模塑粒料分子量范围150,000 - 350,000。

    Different grades of crystal polystyrene molding pellets range from 150,000 to 350,000 weight average molecular weight.

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  • 采用间接开聚合法合成分子量为444 ,848的聚乳酸,并对合成工艺了优化。

    The of polylactic acid(PLA) was obtained by ring-opening polymerization and the synthesis conditions to get 444,848 molecular weight were optimized.

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  • 溶剂溶胀平衡测定了聚氨酯单一网络的单位体积内有效交联数目交联点分子量

    The number of effective crosslinking chains per unit volume (ve) and the average molecular weights between crosslinks (Mc) were determined by means of equilibrium swelling measurement.

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  • 萃取结构单元主要环所构成,萃取物的分子量448,碳率为0.53。

    The structural unit of extract consists primarily of aromatic rings and cycloparaffinic rings. The average molecular weight of the extract is 448. The aromaticity is 0.53.

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  • GPC测得共聚物分子量为4934,多分散指数1.978,具有分子量分布

    The data of GPC indicate that the number-average molecular is 4934 and the polydispersity is 1.978 with a narrow molecular distribution.

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  • GPC测得共聚物分子量为4934,多分散指数1.978,具有分子量分布

    The data of GPC indicate that the number-average molecular is 4934 and the polydispersity is 1.978 with a narrow molecular distribution.

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