【摘 要】
：
Despite the increasing importance of branched polymers for various applications,their characterization still remains as a major challenge in polymer analysis si
【机 构】
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DivisionofMaterialsScienceandDepartmentofChemistry,PohangUniversityofScienceandTechnology(POSTECH),P
【出 处】
：
The 11th International Symposium on Polymer Physics(PP2014)(
论文部分内容阅读
Despite the increasing importance of branched polymers for various applications,their characterization still remains as a major challenge in polymer analysis since Zimm & Stockmayer proposed a branching analysis scheme based on the chain contraction factor in 1949.Size exclusion chromatography (SEC) coupled with a triple detection (TD) method has been widely used for the analysis of branched polymers.In the SEC-TD method,SEC is expected to separate the polymers according to molecular weight (MW) and the MW and the chain size (either radius of gyration or intrinsic viscosity) of the polymer species eluting in each narrow effluent slice are measured to determine the chain contraction factor.
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