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Saccharide modified silica particles by enzymatic grafting
Author(s) -
Loos Katja,
von Braunmühl Volker,
Stadler Reimund,
Landfester Katharina,
Spiess Hans Wolfgang
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030181006
Subject(s) - grafting , covalent bond , polymerization , chemistry , polymer chemistry , amylose , glucan , materials science , chemical engineering , organic chemistry , polymer , starch , engineering
The surface of silica particles has been chemically modified with oligo‐ or poly‐(α,1←4)‐ D ‐glucopyranose (amylose) chains of various length by covalently attaching maltoheptaose derivatives to the solid support and enzymatic polymerization of glucose‐1‐phosphate with potato phosphorylase (E.C. 2.4.1.1) as catalyst. The characterization of the products by solid‐state NMR spectroscopy showed an interesting dependence of the linewidth with the grafting density of the glucan chains. The modified silica particles showed chiral discrimination in liquid chromatography.