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Nanoparticles carrying hydroxyl groups produced by microemulsion
Author(s) -
Özer F.,
Beşkardeş M. O.,
Zareie H.,
Pi̇şki̇n E.
Publication year - 2001
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.1843
Subject(s) - comonomer , microemulsion , copolymer , polymer chemistry , polymerization , differential scanning calorimetry , materials science , glass transition , radical polymerization , chemical engineering , chemistry , polymer , composite material , pulmonary surfactant , physics , engineering , thermodynamics
Methylmethacrylate and 2‐hydroxyethylmethacrylate were polymerized in oil‐in‐water microemulsions that were stabilized by cetyltrimetylammonium bromide (CTAB). Microemulsions that prepared changed continuously from transparent microemulsions to turbid emulsions by increasing the HEMA weight percentage as a comonomer. Polymerization was initiated with an oil‐soluble initiator, azobisizobutyronitrile (AIBN). Stable P(MMA‐HEMA) latexes were obtained about 40 nm in diameter. Molecular weights of the copolymers were in the range of 1.89–2.03 × 10 6 . The glass transition temperatures of these copolymers, which were obtained by differential scanning calorimeter, were in the range of 95–99°C. The comonomer ratio in the final copolymers were obtained from the nuclear magnetic resonance spectra, which were smaller than the comonomer ratios used in the original recipes. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 237–242, 2001