In situ formation of silver nanoparticles in linear and branched polyelectrolyte matrices using various reducing agents

被引：0
作者：
Vasyl Chumachenko
Nataliya Kutsevol
Michel Rawiso
Marc Schmutz
Christian Blanck
机构：
[1] Kiev Taras Shevchenko National University,Department of Chemistry
[2] Institut Charles Sadron (CNRS-UdS),undefined
来源：
Nanoscale Research Letters | / 9卷
关键词：
Branched polymers; Polyelectrolytes; Dextran; Polyacrylamide; Grafted copolymers; Hydrolysis; Silver nanoparticles;
D O I：
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学科分类号：
摘要：
Silver nanoparticles were synthesized in linear and branched polyelectrolyte matrices using different reductants and distinct synthesis conditions. The effect of the host hydrolyzed linear polyacrylamide and star-like copolymers dextran-graft-polyacrylamide of various compactness, the nature of the reductant, and temperature were studied on in situ synthesis of silver sols. The related nanosystems were analyzed by high-resolution transmission electron microscopy and UV-vis absorption spectrophotometry. It was established that the internal structure of the polymer matrix as well as the nature of the reductant determines the process of the silver nanoparticle formation. Specifically, the branched polymer matrices were much more efficient than the linear ones for stable nanosystem preparation.
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