分子量分布

目的初步研究生地等7种药材和清络通痹复方8种中药水提液中可溶性有机物分子量分布的特点，以及与0.2μm孔径Al2O3陶瓷膜稳定通量的相关性。

OBJECTIVE To investigate into the distribution of molecular weight of soluble organic substances in the water extract of seven crude Chinese drugs and eight prescriptions and the correlation of the stable flux of 0.2 μ m Al 2O 3 pottery membrane .

通过引入改性单体和优化工艺条件，制得初级粒子粒径小且分子量分布均匀的改性聚四氟乙烯分散树脂乳液。

This text introduces leading the modified monomer to polytetrafluoroethylene dispersing resin and optimum process conditions to make the modified polytetrafluoroethylene dispersing resin which has a small particle size and even distribution of molecular weight .

利用B样条神经网络实现聚合反应分子量分布的建模与控制

MWD modeling and control for polymerization via B-spline neural network

固相缩聚PET的分子量分布

The molecular weight distribution of solid phase polycondensation PET

窄分子量分布PS的合成、表征及应用

Synthesis , Characterization and Application of Narrow Molecular Weight Distribution PS

对几种催化剂的催化性能进行了评价，其中三种催化剂表现出活性聚合的特征，催化脂肪系亚胺与CO共聚得到的聚合物的分子量分布都比较窄。

Catalytic performances of the five catalysts were evaluated and three of them displayed characteristics of living polymerization behavior .

HDPE装置PE分子量分布的研究

The Study on Molecular Weight Distribution of HDPE

研制了低卤阻燃HDPE，并对其力学性能进行了分析，详细讨论了不同分子量分布的HDPE、不同种类的偶联剂对阻燃HDPE的拉伸强度、断裂伸长率和氧指数的影响；

The tensile yield strength and elongation of low-halogen flame-retardant HDPE were discussed .

超声辐照对HDPE分子量分布及拉伸行为的影响

Effects of Ultrasonic Irradiation on Molecular Weight Distribution and Tensile Behavior of HDPE

而后，对发酵液进行了超滤，确定了ACE抑制肽的基本分子量分布。

The molecular weight of ACE – inhibitory peptide was confirmed by ultrafiltrated .

用凝胶渗透色谱法研究SBS的分子量分布及组成分布

Study of the molecular weight distribution and composition distribution of SBS copolymers by gel permeation chromatography

GPC法测定纺织油剂聚醚的分子量分布

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

特性粘度、分子量分布、TiO2粒子对生产工艺影响的初探

The Preliminary Study on Intrinsic Viscosity , Molecular Weight Distribution and TiO_2 Particle to the Production Technology

高效GPC法测定沥青及其缩聚物的分子量分布

Determination of Molecular Weight Distribution of Pitches and Their Polymers and Their Polymers by High Performance GPC

通过以辽河减压渣油为原料，经溶剂萃取对渣油进行“掐头去尾”处理，获得了分子量分布窄、杂质含量少的中间馏分A及馏分B。

Solvent extraction was employed to modify the residue and the coking properties of extracts A and B , both of which have low impurity content and narrow molecular weight distribution , are given .

结果表明，可以用软化点加分子量分布来判断PCS的熔融可纺性。

The results show that , the melting spinnability of PCS can be estimated by softening point and molecular weight distribution .

本文叙述了用简易凝胶渗透色谱（GPC）测定天然橡胶分子量分布。

This paper describes the determination of the molecular weight distribution of natural rubber by means of simple GPC .

提高反应温度则使PET的特性粘度提高，羧基含量减少，分子量分布变窄，从而改善厂PET的内在质量。

Increase in reaction temperature results in increase in intrinsic viscosity of PET decrease in carbonyl content and narrowing of molecularweight distribution . which improves the quality of PET .

基于水解体系的pH值变化对其酶解物的分子量分布和肽提取率的高低影响很小，确定水解过程中不必加碱保持体系pH值的恒定。

Basis on change of pH has little effect on recovery ratio of peptides and distribution of molecular weight , there is no need to add alkali to keep pH constant during hydrolysis .

宽或双峰分子量分布HDPE的研制&Ⅰ.双金属复合催化剂的制备及其催化乙烯聚合反应动力学

Study on Wide or Bimodal Molecular Weight Distribution HDPE ⅰ . Preparation of Bimetallic Composite Catalyst and its Reaction Kinetics in Ethylene Catalytic Polymerization

通过凝胶渗透色谱法和红外光谱法证实该反应方法可合成分子量分布指数低于1.5的PAM。

It is identified that polyacrylamide with low polydispersity (≤ 1.5 ) can be synthesized by infra-red absorption spectroscopy and gel permeation chromatography .

并用凝胶过滤色谱测定了不同DE值脂肪替代品的分子量分布，从而在分子水平上探讨胶凝机理。

The molecular weight distributions of components of the fat substitutes with different DE value were measured by GPC , as exploring the mechanism of the gel formation at molecular level .

凝胶色谱（GPC）是当前测定高聚物分子量分布极为有效的手段。

Gel permeation chromatography ( GPC ) is currently a very effective method for the determination of molecular weight distribution of high polymers .

凝胶渗透色谱（GPC）结果显示，产物的分子量分布较窄，反映了较好的可控性。

Gel permeation chromatography ( GPC ) results showed that the molecular weight distribution was narrow , reflecting a good controllability of copolymerization .

掺杂载体Ziegler-Natta催化剂的制备及聚丙烯分子量分布调控的研究

Preparation of Ziegler-Natta Catalysts Based on Doped Support and Control of Molecular Weight Distribution of Polypropene

结果表明，经UHP处理后S-卵白蛋白的分子量分布没有明显变化。

It was showed no significant change in the molecular weight distribution of S-ovalbumin after UHP under various pressure treatments .

运用红外光谱（FT.IR）、核磁共振谱（1H-NMR）、凝胶渗透色谱（GPC）对其化学结构及分子量分布进行了表征。

The chemical structure and molecular weight distribution were characterized by using infrared spectroscopy , nuclear magnetic resonance spectroscopy , gel permeation chromatography .

牦牛与奶牛酪蛋白制备的CPPs分子量分布及其生物功能研究

Research on molecule weight distribution and biological function of the CPPs from yak and milch cow casein

脲醛树脂分子量分布与胶合性能关系的研究&缩聚时的pH值与温度对UF树脂分子量分布及胶合性能的影响

Study on the Relationship of Molecular Weight Distribution of Urea-Formaldehyde ( UF ) Resins with Bonding Properties & The Relationship of Condensation Temperature and pH Value of UF Resins with Its Bonding Properties

以复合茂金属催化剂和双载体茂金属催化剂催化乙烯聚合、考察聚乙烯（PE）分子量分布变化情况。

The composite metallocene catalyst and metallocene catalyst supported on mixed carrier was employed for ethylene polymerization , respectively . The variation in molecular weight distribution ( MWD ) of polyethylene ( PE ) was studied .