| Literature DB >> 17303095 |
Stéphane Lack1, Virginie Dulong, Luc Picton, Didier Le Cerf, Eric Condamine.
Abstract
An NMR spectroscopy study ((31)P, (1)H, (13)C) of the postulated crosslinking mechanism of sodium trimetaphosphate (STMP) on polysaccharides is reported using methyl alpha-D-glucopyranoside as a model. In a first step, reaction of STMP with Glc-OMe gives grafted sodium tripolyphosphate (STPP(g)). On the one hand, STTP(g) can react with a second alcohol functionality to give a crosslinked monophosphate. On the other hand, a monophosphate (grafted phosphate) could be obtained by alkaline degradation of STPP(g). NMR spectroscopy allows to detect the various species formed and to obtain the crosslinking density of STMP-polysaccharides hydrogels.Entities:
Mesh：
Substances：
Year: 2007 PMID： 17303095 DOI： 10.1016/j.carres.2007.01.011
Source DB: PubMed Journal: Carbohydr Res ISSN： 0008-6215 Impact factor: 2.104