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  • Title: [Investigation of the carboxymethyl hydroxypropyl guar gum cross-linked with metal ions].
    Author: Wang Z, Zhang G, Wnag Y, Zhao G.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 1997 Jun; 17(3):46-50. PubMed ID: 15810217.
    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.
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