Synthesis and characterisation of polymethylmethacrylate/nanosilica and nanosilica/ polymethylmethacrylate core-shell structure composite microspheres

Author

Tao Lin ; Yuying Zheng

Author_Institution

Coll. of Chem. & Chem. Eng., Fuzhou Univ., Fuzhou, China

Volume

8

Issue

5

fYear

2013

fDate

May-13

Firstpage

217

Lastpage

220

Abstract

The nanosilica/polymethylmethacrylate (SiO₂/PMMA) and polymethylmethacrylate/nanosilica (PMMA/SiO₂) core-shell structure composite microspheres were fabricated by dispersion polymerisation under similar reaction conditions. These two kinds of microspheres are different to each other by their opposite core-shell structure. The composite mircospheres were characterised by infrared spectra, transmission electron microscopy and thermal gravimetric analysis (TGA). The diameter of SiO₂/PMMA particles is about 50 nm. The average diameters of PMMA/SiO₂ particles are in the range of 60-70 nm as KH570 was added after methyl methacrylate polymerisation reaction for 2 h. The TGA curves show that the thermal stability of SiO₂/PMMA is better than PMMA/SiO₂.

Keywords

filled polymers; infrared spectra; nanocomposites; nanofabrication; nanoparticles; particle size; polymerisation; silicon compounds; thermal analysis; thermal stability; transmission electron microscopy; SiO₂; SiO₂-PMMA fabrication; TGA curves; dispersion polymerisation; infrared spectra; methyl methacrylate polymerisation reaction; nanosilica-polymethylmethacrylate core-shell structure composite microspheres; particle diameter; polymethylmethacrylate-nanosilica synthesis; thermal gravimetric analysis; thermal stability; time 2 h; transmission electron microscopy;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2012.0813

Filename

6544973