COMPOSITION DETERMINATION OF BINARY POLYMER MIXTURES BY SIZE EXCLUSION CHROMATOGRAPHY WITH LIGHT SCATTERING DETECTION  

作　　者：程镕时 

机构地区：[1]Key Laboratory of Mesoscopic Chemistry of MOE,College of Chemistry and Chemical Engineering, Nanjing University [2]College of Materials Science and Engineering,South China University of Technology

出　　处：《Chinese Journal of Polymer Science》2010年第3期291-297,共7页高分子科学（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.50633030)

摘　　要：Base on the principle of absolute quantification of size exclusion chromatography （SEC）, a light scattering （LS） detector coupled with a concentration detector （refractive index detector） is utilized to determine the compositions of complicated binary mixtures. A theoretical analysis predicts that the response factors for both LS and RI detectors are linear functions with the composition of any specified polymer mixtures in the binary polymer mixtures. Two pairs of complicated binary mixtures were used to test the theory mentioned in the present paper, and the experimental results show an excellent accordance with the theory.Base on the principle of absolute quantification of size exclusion chromatography （SEC）, a light scattering （LS） detector coupled with a concentration detector （refractive index detector） is utilized to determine the compositions of complicated binary mixtures. A theoretical analysis predicts that the response factors for both LS and RI detectors are linear functions with the composition of any specified polymer mixtures in the binary polymer mixtures. Two pairs of complicated binary mixtures were used to test the theory mentioned in the present paper, and the experimental results show an excellent accordance with the theory.

关 键 词：Size exclusion chromatography Light scattering Composition of binary mixture Absolute quantification Response factor. 

分 类 号：O631.3[理学—高分子化学]