Fig. 2.Fractional division of GPC profile based on molecular weight range for polymer modified asphalt binder Sungun Kim等人评估沥青混合料在不同老化温度下的老化程度,采用凝胶渗透层析技术对无粘结剂回收的混合颗粒进行分析,以估计每种情况下短期老化的老化意义。对不同温度下的老化水平进行了统计分析。(DOI:...
Fig. 2.Fractional division of GPC profile based on molecular weight range for polymer modified asphalt binder Sungun Kim等人评估沥青混合料在不同老化温度下的老化程度,采用凝胶渗透层析技术对无粘结剂回收的混合颗粒进行分析,以估计每种情况下短期老化的老化意义。对...
GPC (Gel Permeation Chromatography) 分辨因子是一种用于表征聚合物分子大小分布广度的指标,常用于聚合物的分子量分析。分辨因子又称为聚合物分子量分布指数(Polymer distribution index),通常用符号Đ表示,计算方法如下: Đ= Mw/Mn 其中,Mw是权重平均分子量(Weight-average molecular weight),表示聚合物分子量的...
No.1Mar.2015高温凝胶渗透色谱(GPC)测试聚乙烯分子量的条件研究熊小莉1’2陈成2罗学刚2(1.匹lJll师范大学化学与材料科学学院l匹lJll成都610066;2.西南科技大学生物质材料中心[]ill绵阳621000)摘要:研究了Polymer Laboratories(PL)GPC 200型高温凝胶渗透色谱测试聚乙烯分子量的精密性和重复性,并对线性低密度聚乙烯...
withknownmolecularweightisusedasstandardbywhichtherelativemolecularweightofpolymeriscalculatedbased011comparingtheretentiontimeofthepolymerinseparationcolumnortheelutionvolumeofleachingprocesswiththoseofthestandardpolystyrones.Asafastmethodofdeterminingpolymers’relativemolecularweightgelpermeationchromatography(GPC)has...
25、ucture, the third (black trace) gave lower values of intrinsic viscosity at any given molecular weight, indicative of the more dense polymer structure which accompanies an increase in the level of polymer branching.HTGPC SCB determination of PE by FTIRUse spectral featuresTo determine SCBFrom...
molecular separation monodispersepolystyrene伊S)withweight isusedas whichtherelativemolecularof iscalculated standard,by weightpolymer retentiontimeofthe in or based011 the polymer columnthe comparing separation volumeof withthoseofthestandard afast elution leachingprocess polystyrones.As methodof molecular ...
GPC培训 Analysisandcontrolofpolymer’smolecularweight 锂系聚合物分子量分析与控制 GelPermeationChromatography凝胶渗透色谱法 主讲：文强讲师 放下放开 放松 一只狮子率领的一群绵羊，可以打败一只绵羊率领的一群狮子。——拿破仑 管理者不可能把组织带到自己能力无法企及的彼岸，管理者的水平决定了组织的绩效水平。主要...
第30卷第l期 西南科技大学学报 V01.30No.1 of Mar.2015 JournalSouthwest ofScienceand 2015年3月 University Technology 高温凝胶渗透色谱(GPC)测试 聚乙烯分子量的条件研究 熊小莉1’2陈成2罗学刚2 摘要:研究了PolymerLaboratories(PL)GPC200型高温凝胶渗透色谱测试聚乙烯分子量的精密性和重复性,并对线性 重均分...
In order to determine the molecular weight of a polymer by GPC in the low MW region, a secondary calibration method can be established when polymer standards of the analysed polymer are not available (1). The efficiency of this method has been checked for the system poly(methyl methacrylate)...