X-ray Study of Structural Formation and Thermomechanical Properties of Silver-Containing Polymer Nanocomposites

被引：14
作者：
Demchenko, Valeriy [1 ]
Riabov, Sergii [1 ]
Shtompel, Volodymyr [1 ]
机构：
[1] Natl Acad Sci Ukraine, Inst Macromolecular Chem, Dept Polymers Modificat, 48 Kharkivske chaussee, UA-02160 Kiev, Ukraine
来源：
NANOSCALE RESEARCH LETTERS | 2017年 / 12卷
关键词：
Interpolyelectrolyte complexes; Interpolyelectrolyte-metal complexes; Nanocomposite; Structure; Thermomechanical properties; NANOPARTICLES; SCATTERING;
D O I：
10.1186/s11671-017-1967-2
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The structural organization and thermomechanical properties of nanocomposites prepared from interpolyelectrolyte-metal complex (IMC) involving anionic polyelectrolyte, pectin and AgNO3, and cationic polyelectrolyte, poly(4-vinylpyridine), have been investigated using the methods of wide-and small-angle X-ray scattering and thermomechanical analysis. It is established that chemical reduction of Ag+ ions in the IMC by sodium borohydride results in formation of the nanocomposite based on the "pectin-poly(4-vinylpyridine)" interpolyelectrolyte complex (IPEC) and Ag-0 nanoparticles as well. At the same time, the level of nanocomposites' structural heterogeneity is substantially enhancing, while effective size of the heterogeneity regions decreases. The nanocomposites IPEC-Ag-0 prepared are shown much bigger T-g value and enhanced ability for deformation than those for IMC.
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页数：6
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