title: [Investigation of the carboxymethyl hydroxypropyl guar gum cross-linked with metal ions].
abstract: In this paper the infrared-spectral changes and thermal gravimetric analysis of the gels formed with carboxymethyl hydroxypropyl guar gum (CMHPG) cross-linked with metal ions (Fe3+, Cr3+, Ti4+) have been studied. The results indicated that the coordinated active sites are mainly supplied with hydroxypropyl, neigbouring cis-OH of main chain and carboxymethyl groups of CMHPG. And the results of spectral analysis showed the strength orders and coordinated mode of the guar gum cross-linked with metal ions.
authors.affiliation: Henan Institute of Chemistry, 450003 Zhengzhou.
authors.forename: Z
authors.initials: Z
authors.lastname: Wang
authors.forename: G
authors.initials: G
authors.lastname: Zhang
authors.forename: Y
authors.initials: Y
authors.lastname: Wnag
authors.forename: G
authors.initials: G
authors.lastname: Zhao
mesh_terms: D003432:Cross-Linking Reagents / Q000737:chemistry*; D005685:Galactans / Q000737:chemistry*; D008351:Mannans / Q000737:chemistry*; D008670:Metals / Q000737:chemistry*; D053149:Plant Gums / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013696:Temperature
chemical_list: D003432:Cross-Linking Reagents; D005685:Galactans; D008351:Mannans; D008670:Metals; D053149:Plant Gums; C007894:guar gum