Nanocomposites based on interpolyelectrolyte complex and Cu/Cu2O core-shell nanoparticles: Structure, thermomechanical and electric properties

被引：22

作者：

Demchenko, Valeriy ^{[1
]}

Shtompel, Volodymyr ^{[1
]}

Riabov, Sergiy ^{[1
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Macromol Chem, Kiev, Ukraine

来源：

EUROPEAN POLYMER JOURNAL | 2016年 / 75卷

关键词：

Interpolyelectrolyte complexes; Interpolyelectrolyte-metal complexes; Nanocomposite; Structure; Thermomechanical properties; Electric properties; COPPER NANOPARTICLES; REDUCTION; MEMBRANES; IONS;

D O I：

10.1016/j.eurpolymj.2016.01.004

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The morphology, structural, thermomechanical and electric properties of nanocomposites prepared from interpolyelectrolyte-metal complex being formed involving anionic polyelectrolyte - pectin, CuSO4 and cationic polyelectrolyte - polyethyleneimine have been investigated using the methods of wide-angle X-ray scattering, transmission electronic microscopy, thermomechanical analysis and dielectric spectroscopy. Such type of nanocomposites with Cu/Cu2O core-shell nanoparticles incorporated into polymer matrix is obtained due to the chemical reduction of Cu2+ cations by NaBH4 in the interpolyelectrolyte complex, and appearance of the copper's metallic phase is observed in full extent while BH4-:Cu2+ molar ratio is equal to 6.0. Applying thermomechanical analysis and dielectric spectroscopy, it was observed that transformation of interpolyelectrolyte-metal complexes into nanocomposites results in decreasing of their glass-transition temperature and increasing of the electric conductivity. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：310 / 316

页数：7

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