molecular weight的例句大全

The optimal condition: mass ratio of starch and acrylamide 1:2, initiator quality 0.3g, reation temperature 50 ℃ and reaction time 3h was obtained through orthogonal experiments with the target of efficiency of graft, soluble capability and molecular weight of the grafting chain.

通过正交实验，以接枝效率、溶解性能和接枝链上聚丙烯酰胺分子量为指标得出了最佳条件为：淀粉与丙烯酰胺质量比为1：2，引发剂质量为0.3g，反应温度为50℃，反应时间为3h。

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The structure design, processing technology and industrial test result of shaft sleeve and bearing made with ultra-high molecular weight polyethylene ( UHMWPE) instead of copper and so on were introduced.

介绍采用超高分子量聚乙烯替代铜等制造轴套、轴承的结构设计、加工工艺及工业性实验结果。

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Experimental results show that when the polymer concentration is constant the induced phase separation factors of the casting solution will be changed, while adding additives polyethylene glycol ( PEG) with three molecular weight in different quality concentration.

实验表明，在聚合物浓度不变的情况下，共混体系中加入不同质量浓度的三种分子量的添加剂聚乙二醇（PEG）后，铸膜液在凝胶浴中成膜的相分离因素会发生改变。

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Preparation and Characterization of Low Molecular Weight Chitosan Nano-particles in Textile Finishing

用于纺织品整理的低分子质量纳米壳聚糖的制备与表征

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Determination of molecular weight distribution of textile finish oil polyether by GPC quantitative method

GPC法测定纺织油剂聚醚的分子量分布

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Ultra high molecular weight polyethylene pipe ( UHMWPE) has excellent properties of impact-resistance anti-corrosion abrasion-resistance self-lubricating non-toxicity and low temperature resistance.

超高分子量聚乙烯（UHMWPE）管道具有优异的耐冲击、耐腐蚀、耐磨损、自润滑、无毒和耐低温等性能，其寿命是普通钢管的7～8倍。

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M is the molecular weight of the compound, and R is the universal gas constant.

M为分子量；R为气体常数。

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Using N, N, N ′, N ′-tetramethylethylenediamine and potassium persulphate as a redox initiation system, high molecular weight poly ( vinyl acetate)( PVAc) was synthesized by aqueous deposited polymerization.

以N，N，N，′N′-四甲基乙二胺-过硫酸钾为氧化-还原引发体系，用水相沉淀聚合法合成了超高相对分子质量的聚醋酸乙烯（PVAc）。

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Study on the Relationship Between the Tensile Strength with the Morphological Structure and Molecular Weight Distribution for Orientated Polymers& A New Method for Determining the Theoretical Strength from Experiments

取向高聚物的抗张强度对其形态结构和起始分子量分布依赖性的研究&一种从实验上来测定理论强度的新方法

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Some performance indexes such as surface contact angle, molecular weight, crosslinkage, tensile strength and break elongation etc. were investigated.

对EB辐照薄膜的某些性能指标，如表面接触角、分子量、交联度及拉伸强度、断裂伸长率等进行了测试。

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This paper studied the basic properties of metallocene linear low density polyethylene ( mLLDPE), including density, melt flow rate, molecular weight distribution, melt point, yield strength, tensile strength at break, elongation at break and Izod impact strength.

研究了茂金属线型低密度聚乙烯（mLLDPE）的基础性能，包括密度、熔体流动指数、熔流比、分子量及其分布、熔点、屈服强度、断裂强度、伸长率、冲击强度等。

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Results showed that the complexation of ultra high molecular weight nylon-6-nitromethane-gallium chloride could be realized by the above methods and the hydrogen bonds could be disrupted so the tensile ratio of the complexed polymer's film could attain to 20 times.

结果表明：采用上述方法可以制得无定型三氯化镓-硝基甲烷-超高分子质量尼龙6络合物，超高分子质量尼龙6分子间的氢键被屏蔽，络合物薄膜能拉伸到近20倍；

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Influence of Polymer Constitution on Relationship Between Surface Tension and Molecular Weight

高聚物结构对表面张力与相对分子质量关系的影响

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Discussion on Determination of Relative Number Average Molecular Weight of Chitosan-Oligosaccharide by Terminal Group Analysis Method

关于端基分析法测定壳低聚糖的相对数均分子质量问题的探讨

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Methods: Various analytical techniques including gene sequencing, amino acid composition, analysis of N terminal amino acid analysis, peptide mapping, IEF, molecular weight and UV scanning were used.

方法：用基因测序、氨基酸组成分析、N末端氨基酸测序、胰肽图谱、IEF、分子量、紫外扫描等各种实验手段对重组L天冬酰胺酶及其天然品进行了全面比较。

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The results showed that the thermal properties and relative molecular weight distribution had no evident effect on the spinnability of PBT when the content of terminal carboxyl group had a profound effect.

结果表明，PBT的热性能和相对分子质量分布对可纺性影响不明显，而其端羧基含量影响显著。

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In order to determine alcoholysis terminal paint and esterification condition, a study on the components of alcoholysis solution in alcoholysis process and molecular weight and its distribution in esterification process has been accomplished.

为确定醇解终点和酯化条件，本研究对醇解过程中醇解液组成的变化，酯化过程中树脂分子量及分子量分布进行了研究。

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Moreover, a heat resistant polyester polyols with forseeable molecular weight and inherent viscosity and stable synthesis techniques were prepared through regulating the THEIC/ glycerol, OH/ COOH and triol/ diol mole ratios in original components.

通过调节组分中的THEIC/甘油、羟基/羧基及三元醇/二元醇的摩尔比例，能够稳定合成工艺，制得耐热性能好、具有预定分子量和特性粘数的聚酯多元醇齐聚物。

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The terminal allylation reaction was studied which was influenced by reaction time, reaction temperature, category and dosage of allylation reagent and molecular weight of polyether.

其次对双羟基聚醚的端烯丙基化反应进行研究，讨论了反应时间、反应温度、聚醚分子量、烯丙基化试剂的种类和用量对反应的影响。

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Flavonoid compounds are low molecular weight ingredients in natural plant, and have diverse pharmacological actions with low side effect.

黄酮类化合物（flavonoid CompoundS）是一类低分子天然植物成分，它表现出多种多样的药理活性，且毒副作用小。

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