期刊
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
卷 54, 期 11, 页码 1122-1134出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/03602559.2014.996904
关键词
Glass transition temperature; Graphite; Nanoprecipitation cosolvent evaporation; Polystyrene nanoparticles; Silica nanoparticles
We have designed polystyrene nanoparticles through modified nanoprecipitation cosolvent evaporation technique and conventional nanoprecipitation and solvent evaporation. Polystyrene nanoparticles were embedded with silica nanoparticles and graphite to analyze scope of nanoprecipitation cosolvent evaporation. Ultraviolet-visible spectroscopic revealed decreased band gap of polystyrene nanoparticles obtained via nanoprecipitation cosolvent evaporation. Scanning electron microscopic showed uniform morphology of polystyrene nanoparticles and polystyrene nanoparticles-based nanocomposites engendered by nanoprecipitation cosolvent evaporation. X-ray diffraction disclosed presence of crystalline domains due to silica nanoparticles content in amorphous structure. Glass transition temperature was increased from 94 (polystyrene) to 124 degrees C (PSNPs/SiNPs 0.6) and 137 degrees C (PSNPs/SiNPs/G 0.6) with filler loading. Electrical conductivity of PSNPs/SiNPs/G 0.6 was also found to be higher (1.53 S/cm).
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