Poly (styrene-n-butyl acrylate-methyl methacrylate)/silica nanocomposites prepared by emulsion polymerization

Poly (styrene-n-butyl acrylate-methyl methacrylate) (PSBM)/silica nanocomposite was prepared by emulsion polymerization in the presence of oleic acid surface modified nanosilica. The structure, morphology, size, and size distribution were characterized by Fourier transform infrared (FTIR), transmiss...

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Bibliographic Details
Published in:Journal of applied polymer science 2011-06, Vol.120 (6), p.3654-3661
Main Authors: Rong, Qianping, Zhu, Aiping, Zhong, Tao
Format: Article
Language:English
Subjects:
Application fields
Applied sciences
core-shell structure
Dynamics
Emulsion polymerization
Exact sciences and technology
Materials science
Nanocomposites
Nanomaterials
nanosilica
Nanostructure
Polymer industry, paints, wood
Polymers
PSBM nanocomposites
Reproduction
rheological properties
Silicon dioxide
Technology of polymers
Transmission electron microscopy
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Summary:Poly (styrene-n-butyl acrylate-methyl methacrylate) (PSBM)/silica nanocomposite was prepared by emulsion polymerization in the presence of oleic acid surface modified nanosilica. The structure, morphology, size, and size distribution were characterized by Fourier transform infrared (FTIR), transmission electron microscopy (TEM), and dynamics laser scattering. The chemical bond was formed between PSBM and nanosilica revealed by FTIR and TEM studies. The composite particles with an averaged diameter ranging from 30 to 80 nm have the core-shell structure. The effect of silica content on the glass transition temperature Tg, pyrolyze temperature, and rheological behavior of PSBM composites was systematically investigated. The results indicated that the addition of nanosilica could effectively inhibit chain movement, and improved the pyrolyze temperature of PSBM. The steady viscosity and dynamic modulus were strongly dependent on the content and distribution of nanosilica in PSBM nanocomposites.
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.33548