用粘度法测定了复合树脂中pvc的粘均分子量。
Molecular weight of PVC composite resin was determined by viscometer.
辅助催化剂B的加入可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.
研究了离子液体对稠油黏度、组成和平均分子量的影响。
The effects of ionic liquids on viscosity, hydrocarbon composition and average molecular weight of heavy oils are investigated.
介绍了用凝胶色谱法测定高聚物的平均分子量及分子量分布。
It introduced the gel chromatography to determine the average molecular weight and molecular weight distribution of high polymer.
平均分子量太小,不利于产物的吸附与水化,平均分子量太大。
Lower average molecular weight of LGV samples was unfavourable for the adsorption and hydration.
温度升高,聚合反应的转化率增加,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.
测试结果表明,低温短期老化时沥青的质量增加,平均分子量增加。
The results indicated that the asphalt quality and its average molecular weights were increased after ageing of short duration at low temperature.
样品经酸水解,测得右旋糖酐铁中右旋糖酐的重均分子量和分子量分布。
The average molecular weight and molecular weight distribution were determined with acid hydrolyzed iron dextran samples.
考察了聚合条件对共聚物数均分子量和醋酸乙酯(VA)质量分数的影响。
Effects of polymerization conditions on the copolymer molecular weight and VA weight content were studied.
用甘油基作标准求出了聚醚的数均分子量,结果表明此法准确、方便、快速。
The glyceryl was used as standard to calculate Number—Average Molecular Weight of polyether. The result showed that it was accurate, convenient and high speed method.
合成时应对此进行严格控制和调整,使LGV产物具有合理的平均分子量分布。
The reaction temperature should be controlled in order to make LGV samples have proper average molecular mass.
产品平均分子量和分子量分布亦介于平推流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...
产品平均分子量和分子量分布亦介于平推流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 and maximum micromixing...
利用粘度法测定聚丙烯酸支链的平均分子量,红外光谱法分析接枝共聚物的结构。
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.
首先,数均分子量随转化率的增加线性增长,且与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.
通过化学工艺计算,得到了各馏分的平均分子量和饱和蒸汽压,进而求出其挥发度。
Via chemic technique calculate, we get the average molecular weight and saturation vapor tension, thereby, we calculate the volatility.
结果表明核磁共振内标法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.
所得聚合物的数均分子量随单体转化率的增加而线性增长,而且分子量呈单峰分布。
The number averaged molecular weights of the obtained polymers increased linearly with monomer conversion, and molecular weight distributions were unimodal throughout the reaction.
水解条件对水解度有较明显的影响,但是平均分子量和正电荷肽相对含量的影响较弱。
Hydrolyzing conditions affect DH markedly but have only weak influence on average molecular weight and positively charged peptide content.
此外,结果表明,在低转化阶段,数均分子量不随转化率改变,仅与聚合反应温度有关。
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.
温度升高,聚合反应的转化率增加, 但产物的数均分子量及分子量分布无明显变化;
The number-average molecular weight and molecular weight distribution of the polymer were not sensitive to temperature.
用粘度法测定氧化聚乙烯蜡的粘均分子量。对测定方法、步骤及影响因素做了详细介绍。
Use viscometry to determine viscosity-average molecular weight of oxidated polyethylene wax and introduce the measurement, process and effect factors in detail.
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。
Different grades of crystal polystyrene molding pellets range from 150,000 to 350,000 weight average molecular weight.
采用间接开环聚合法合成了平均分子量为444 ,848的聚乳酸,并对合成工艺作了优化。
The of polylactic acid(PLA) was obtained by ring-opening polymerization and the synthesis conditions to get 444,848 molecular weight were optimized.
用溶剂溶胀平衡法测定了聚氨酯单一网络的单位体积内有效交联链的数目和交联点间平均分子量。
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.
萃取物的结构单元主要由芳环和脂环所构成,萃取物的平均分子量为448,芳碳率为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.
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.
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.
应用推荐