Synthesis and characterization of poly[methyl methacrylate‐co‐2‐ethylhexyl acrylate‐co‐poly(propylene glycol diacrylate)] latices

Abstract

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. V C 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: [676][677][678][679][680][681][682][683][684] 2011

Modulating the mechanical properties of photopolymerised polyethylene glycol–polypropylene glycol hydrogels for bone regeneration

“…This was, however, unsuccessful; the precursor did not form a homogenous mixture thus a hydrogel could not form. Similar behaviour has been previously reported for PPG based systems [33,34].…”

“…This is due to the hydrophobic nature of PPG which repels water out of the hydrogel structure. A previous study on PPG-based system reported similar findings [33]. In designing bone substitute materials, researchers must consider the swelling percentage in terms of the mechanical strength of the bone substitute material (i.e.…”

Studies of latex blends of natural rubber/poly(methyl methacrylate-co-2-ethylhexyl methacrylate) and their comparison with incompatible natural rubber/poly(methyl methacrylate)

“…Three bands at 1194, 1464 and 728 cm -1 may be assigned to C-O stretching of ester group in MMA units, the C⎯H scissoring vibrations of CH 2 and C-H rocking vibrations of CH 2 (-(CH 2 ) n , n ≥ 4) for EHMA units respectively [23][24][25][26][27]. Moreover, in the 3000-2800 cm -1 , another group of bands is observed, they can be assigned to C-H stretching of CH 3 (2995 cm -1 ) for MMA units and C-H asymmetrical stretching of CH 2 (2959 cm -1 ), C-H stretching of CH 3 (2930 cm -1 ), C⎯H symmetrical stretching of CH 2 (2873 cm -1 ) for EHMA units [28][29][30].…”

Environmentally‐Friendly Acrylates‐Based Polymer Latices

“…Although a vast amount of literature is available on various types of acrylic coatings, a systematic data is lacking for understanding the polymerization kinetics of the eff ect of higher acrylates [180][181] on crosslinkable coatings based on methyl methacrylate and their performance on various substrates. Since these coatings are widely used in industries, there is a broad scope for further opportunities of new fi ndings within the framework of crosslinkable coatings.…”