Cu(II) and Pd(II) complexes of water soluble O-carboxymethyl chitosan Schiff bases: Synthesis, characterization

被引：76

作者：

Baran, Talat ^{[1
]}

Mentes, Ayfer ^{[1
]}

机构：

[1] Aksaray Univ, Fac Sci & Letters, Dept Chem, TR-68100 Aksaray, Turkey

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2015年 / 79卷

关键词：

O-carboxymethyl; Chitosan; Schiff base; ANTIMICROBIAL ACTIVITY; METAL-COMPLEXES; BIOLOGICAL-ACTIVITY; DEACETYLATION; PALLADIUM(II); SUBSTITUTION; NICKEL(II); CRYSTAL; CHITIN; IR;

D O I：

10.1016/j.ijbiomac.2015.05.021

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

070307 [化学生物学]; 071010 [生物化学与分子生物学];

摘要：

This study reports the synthesis of two new water soluble O-carboxymethyl chitosan Schiff bases (OCMCS-5 and OCMCS-6a) and their Cu(II) and Pd(II) complexes. Characterizations of these complexes were carried out with FTIR, elemental analysis, C-13 CPMAS, UV-vis, magnetic moment and molar conductivity techniques. The degrees of substitution (DS) for OCMCS-5a and OCMCS-6a were determined to be 0.48 and 0.44 in elemental analysis. The solubility test revealed that OCMCS-5a and OCMCS-6a dissolved thoroughly in water. The surface morphologies of chitosan (CS), OCMCS-5a, OCMCS-6a and their complexes were studied with SEM-EDAX. Thermal stability of the synthesized compounds was evaluated by TG/DTG and their crystallinity values were investigated with powder X-ray diffraction. Cu(II) and Pd(II) contents of the complexes were estimated with ICP-OES. The characterization studies demonstrated that the thermal stability and crystallinity values of the OCMCS-5a and OCMCS-6a were lower than those of CS. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：542 / 554

页数：13

共 51 条

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