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Preparation and characterization of titanium dioxide core/polymer shell hybrid composite particles prepared by emulsion polymerization
Author(s) -
Yu DongGuk,
An Jeong Ho,
Bae Jin Young,
Lee Yong Eui,
Ahn Seong Deok,
Kang SeungYoul,
Suh Kyung Soo
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.20310
Subject(s) - materials science , composite number , emulsion polymerization , titanium dioxide , polymer , fourier transform infrared spectroscopy , methacrylic acid , dynamic light scattering , methyl methacrylate , particle size , emulsion , chemical engineering , composite material , polymer chemistry , copolymer , nanoparticle , nanotechnology , engineering
Titanium dioxide inorganic core and polymer shell composite poly(methyl methacrylate‐ co ‐butylacrylate‐ co ‐methacrylic acid) [P(MMA‐ co ‐BA)‐MAA] particles were prepared by emulsion copolymerization. Fourier transform IR (FTIR) spectroscopy was used to measure the content of MAA composite particles. Dynamic light scattering (DLS) characterized the composite particle size and size distribution. The field emission SEM (FE‐SEM) results of the composite particles showed regular spherical shape and no bare TiO 2 was detected on the whole surface of the samples. The composite particles were produced, showing good spectral reflectance compared with bare TiO 2 . TGA results indicated the encapsulation efficiency and estimated density of composite particles. Encapsulation efficiency was up to 78.9% and the density ranged from 1.76 to 1.94 g/cm 3 . Estimated density of the composite particles is suitable to 1.73 g/cm 3 , due to density matching with suspending media. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 92: 2970–2975, 2004