The number average molecular weight was determined as 78 650, the weight average molecular weight as 125 446, the molecular weight distribution as 1. 59 by gel permeation chromatography.
采用凝胶渗透色谱仪测试其数均相对分子质量为78 650，重均相对分子质量为125 446，相对分子质量分布为1．59。
The select ion of reactive monomer and oxyethylene group number, molecular weight of copolymer and its distribution, influence of terminal group and the amount of reducing agent added were discussed.
通过对近年来国内外的文献综合，讨论了反应单体、聚氧烷基链和端基的选择、聚合物相对分子质量及其分布、减水剂添加量等对减水剂性能的影响因素。
The effects of the panicle length, branch distribution, number of spikelets, seed set percentage, neck vascular bundles and plant weight per stem on spikelet number per panicle were analyzed.
分析了穗长、枝梗分布、枝梗颖花数及其结实率、穗部维管束数目和开花期单茎干物重对穗粒数的影响。
The number-average molecular weight and molecular weight distribution of the polymer were not sensitive to temperature.
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 of the polymer decreased, the molecular weight distribution was slightly wide, but the conversion increased as the polymerization temperature increasing.
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.
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；
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