中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Determination of molecular weight and molecular sizes of polymers by high temperature gel permeation chromatography with a static and dynamic laser light scattering detector

文献类型:期刊论文

作者Liu, YG; Bo, SQ; Zhu, YJ; Zhang, WH
刊名POLYMER
出版日期2003-11-01
卷号44期号:23页码:7209-7220
关键词Gel Permeation Chromatography Static Light Scattering Dynamic Light Scattering
ISSN号0032-3861
DOI10.1016/j.polymer.2003.08.037
英文摘要Flow-mode static and dynamic laser light scattering (SLS/DLS) studies of polymers, including polystyrene, polyethylene, polypropylene and poly(dimethylsiloxane) (PDMS), in 1,2,4-trichlorobenzene (TCB) at 150 degreesC were performed on a high temperature gel permeation chromatography (GPC) coupled with a SLS/DLS detector. Both absolute molecular weight (M) and molecular sizes (radius of gyration, R-g and hydrodynamic radius, R-h) of polymers eluting from the GPC columns were obtained simultaneously. The conformation of different polymers in TCB at 150 degreesC were discussed according to the scaling relationships between R-g, R-h and M and the rho-ratio (p = R-g/R-h). Flow-mode DLS results of PDMS were verified by batch-mode DLS study of the same sample. The presented technique was proved to be a convenient and quick method to study the shape and conformation of polymers in solution at high temperature. However, the flow-mode DLS was only applicable for high molecular weight polymers with a higher refractive index increment such as PDMS. (C) 2003 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000186026100019
出版者ELSEVIER SCI LTD
源URL[http://ir.iccas.ac.cn/handle/121111/79949]  
专题中国科学院化学研究所
通讯作者Bo, SQ
作者单位Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式
GB/T 7714
Liu, YG,Bo, SQ,Zhu, YJ,et al. Determination of molecular weight and molecular sizes of polymers by high temperature gel permeation chromatography with a static and dynamic laser light scattering detector[J]. POLYMER,2003,44(23):7209-7220.
APA Liu, YG,Bo, SQ,Zhu, YJ,&Zhang, WH.(2003).Determination of molecular weight and molecular sizes of polymers by high temperature gel permeation chromatography with a static and dynamic laser light scattering detector.POLYMER,44(23),7209-7220.
MLA Liu, YG,et al."Determination of molecular weight and molecular sizes of polymers by high temperature gel permeation chromatography with a static and dynamic laser light scattering detector".POLYMER 44.23(2003):7209-7220.

入库方式: OAI收割

来源:化学研究所

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