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Synthesis and characterization of poly[methyl methacrylate‐ co ‐2‐ethylhexyl acrylate‐ co ‐poly(propylene glycol diacrylate)] latices
Author(s) -
Bajpai Sweta,
Rai J. S. P.,
Nigam Indira
Publication year - 2011
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.33777
Subject(s) - materials science , polymer chemistry , methyl methacrylate , monomer , differential scanning calorimetry , contact angle , acrylate , copolymer , polymer , gel permeation chromatography , methacrylate , emulsion polymerization , glass transition , swelling , chemical engineering , composite material , physics , engineering , thermodynamics
The emulsion polymerization of the monomers methyl methacrylate (MMA) and 2‐ethylhexyl acrylate (EHA) was studied to investigate the effect of the crosslinkable monomer poly(propylene glycol diacrylate) (PPGDA). IR spectroscopy, NMR, differential scanning calorimetry, gel permeation chromatography, and scanning electron microscopy were used to characterize the synthesized polymers. These polymers were coated on glass panels and cured at appropriate temperatures to study the physical properties, swelling behavior, surface tension, and contact angle of these polymer latices. The results show that as the concentration of EHA monomer increased, the surface tension of the latices decreased. The copolymers were characterized by 1 H‐NMR spectroscopy to ensure the absence of unreacted monomer, and the results confirm the incorporation of EHA units in the copolymer. The contact angle of the latices on the glass substrate was smaller than that on the metal. The swelling mechanism of the film showed that the Fickian diffusion coefficient with 10 wt % PPGDA was at a minimum value and was the most highly crosslinked polymer among the samples. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011