Novel Hybrids of Polystyrene Nanoparticles and Silica Nanoparticles-Grafted-Graphite Via Modified Technique

被引：9

作者：

Nasir, Amara ^{[1
,2
]}

Kausar, Ayesha ^{[1
]}

Younus, Ayesha ^{[2
]}

机构：

[1] Quaid I Azam Univ, Nanosci & Catalysis Div, Natl Ctr Phys, Islamabad 44000, Pakistan

[2] Univ Agr Faisalabad, Dept Phys, Faisalabad, Pakistan

来源：

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING | 2015年 / 54卷 / 11期

关键词：

Glass transition temperature; Graphite; Nanoprecipitation cosolvent evaporation; Polystyrene nanoparticles; Silica nanoparticles; BIODEGRADABLE NANOPARTICLES; POLYMERIC NANOPARTICLES; COMPOSITES; FABRICATION; MACRO;

D O I：

10.1080/03602559.2014.996904

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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).

引用

页码：1122 / 1134

页数：13

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