The modeling of the molecular weight distribution of polymers is critical in polymerization modeling. Moment-based models and kinetic Monte Carlo are two methods used to calculate the number and weight average molecular weight during simulation of polymerization. While these two methods are commonly ...
Word of the Day Help For webmasters: Free content Linking Lookup box Close molecular weight (redirected fromWeight-average molecular weight) Medical Acronyms molecular weight n. The sum of the atomic weights of all the atoms in a molecule. Also calledrelative molecular mass. ...
A major problem has been the characterization of the complete molecular weight distribution curve by fractionation methods because fraction collection and the determination of the various molecular weight averages of polymers is time consuming. Additionally, measurement of the number-average molecular weight...
When we talk about molecular weight in terms of polymers, we are really talking about the length of the individual chains. Molecular weight is the average weight of the molecules that make up a polymer and gives an indication of the length of the polymer chains ...
2 Molecular Weight and Its Distribution of Polymers英文资料.ppt,Z均分子量(Z-average molecular weight ) 按照Z值统计平均的分子量 对于一定的聚合物-溶剂体系,其特性粘数[η]和分子量的关系如下: Mz Mw Mν Mn,Mν略低于Mw; Mn靠近聚合物中低分子量的部分,即低
The polymers considered in this work are polyvinylcarbazole plasticized by ethylcarbazole and polystyrenes with different average molecular weights. Altogether the influence of temperature, average molecular weight of the polymer host, and concentration of plasticizer on the orientational processes of ...
Application Note: Measurement of molecular weight of polymers Download now For more information Related Products The MQC+ benchtop NMR analyser measures oil, water, fluorine and solid fat in a variety of samples and is typically used for quality assurance and quality control. Analysis using… ...
The Thermal Field-Flow Fractionation method was used to determine average molecular weights for standard polystyrene samples with narrow distribution whose molecular weight ranged from 3600 to 867000. An effective calibration method was proposed and verified, and through the use of this method ...
the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule.Abbr.:mol. wt. [1875–80] Random House Kernerman Webster's College Dictionary, © 2010 K Dicti...
average molecular weight 美 英 un.平均分子量 英汉 un. 1. 平均分子量