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Chemical composition distribution of graft copolymer prepared by macromonomer technique: Determination by gradient HPLC
Author(s) -
Teramachi Shinya
Publication year - 1996
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19961100116
Subject(s) - macromonomer , copolymer , polystyrene , reactivity (psychology) , polymer chemistry , high performance liquid chromatography , methyl methacrylate , molar mass distribution , phase (matter) , materials science , methacrylate , chemistry , chromatography , polymer , organic chemistry , medicine , alternative medicine , pathology
The chemical composition distributions (CCDs) of poly(methyl methacrylate)‐ graft ‐polystyrene samples prepared from the polystyrene macromonomers having methacryloyl and p‐vinylbenzyl end‐groups were determined by high‐performance liquid chromatography (HPLC) based on reversed‐phase and normal‐phase adsorption modes. The CCDs determined by both modes were in good agreement with one another, indicating that the effect of the molecular weight distribution on the CCD is negligible. The results demonstrated the features of the CCDs in agreement with the theoretical predictions and the strong effect of the intrinsic reactivity of the end‐group on the copolymerization reactivity of the macromonomer.