Results 211 to 220 of about 31,697 (260)

Miscibility of poly(N-vinyl-2-pyrrolidone) with (methyl methacrylate)/(2-hydroxyethyl methacrylate) and (n-butyl methacrylate)/(2-hydroxyethyl methacrylate) copolymers

European Polymer Journal, 1991
Abstract The miscibility of poly( N -vinyl-2-pyrrolidone) (PVP) with (methyl methacrylate)/(2-hydroxyethyl methacrylate) (MMA/HEMA) and (n-butyl methacrylate)/(2-hydroxyethyl methacrylate) (BMA/HEMA) copolymers was studied. While PVP is immiscible with poly(methyl methacrylate), it is miscible with a MMA/HEMA copolymer containing 1.9 mol% of HEMA ...
Lee, S.Y., Low, M.Y., Goh, S.H.
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Water diffusion in methacrylate based copolymer hydrogels of 2‐hydroxyethyl methacrylate

Macromolecular Symposia, 2004
AbstractThe diffusion of water into cylinders of polyHEMA and copolymers of HEMA with THFMA, BMA and CHMA were studied over a range of copolymer compositions. The diffusion of water into the polymers was found to follow a Fickian, or case I mechanism.
Hill, D. J. T., Chowdhury, M., Ghi, P. Y., Moss, N. G., Whittaker, A. K.   +4 more
openaire   +3 more sources

Thermal degradation of copolymers of 2-hydroxyethyl methacrylate and alkyl methacrylates

European Polymer Journal, 1982
Abstract Thermal degradation of homopolymers of ethyl methacrylate (I), n-butyl methacrylate (II), 2-hydroxyethyl methacrylate (III), and copolymers of III with I and II were carried out by thermal volatilization analysis (TVA) up to 440°C with subsequent subambient thermal volatilization analysis (SATVA).
M.S. Choudhary, K. Lederer
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Thermal behaviour of 2‐hydroxyethyl methacrylate ‐ methyl methacrylate‐ copolymers

Die Angewandte Makromolekulare Chemie, 1980
AbstractCopolymerization of 2‐hydroxyethyl methacrylate (HEMA) with methyl methacrylate (MMA) was carried out in bulk in nitrogen atmosphere at 70°C using 0.2% benzoyl peroxide as initiator. Fractionation of the copolymers was done by precipitation method. The fractions were characterized by viscosity, NMR, IR and elemental analysis.
M. S. Choudhary, I. K. Varma
openaire   +1 more source

Dual‐functional electrospun poly(2‐hydroxyethyl methacrylate)

Journal of Biomedical Materials Research Part A, 2011
AbstractPoly(2‐hydroxyethyl methacrylate) (pHEMA) has been widely used in many biomedical applications due to its well‐known biocompatibility. For tissue engineering applications, porous scaffolds that mimic fibrous structures of natural extracellular matrix and possess high surface‐area‐to‐volume ratios are highly desirable.
Bo, Zhang, Reza, Lalani, Fang, Cheng, Qingsheng, Liu, Lingyun, Liu   +4 more
openaire   +2 more sources

Wettability of hydrogels I. Poly(2‐hydroxyethyl methacrylate)

Journal of Biomedical Materials Research, 1975
AbstractThe wettability characteristics of the contact lens material, PHEMA, with respect to water have been determined by using the sessile drop, and the captive air bubble techniques of contact angle goniometry. It is concluded that on PHEMA gels water does not spread spontaneously.
F J, Holly, M F, Refojo
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Preparation of Poly(2-hydroxyethyl methacrylate)-Collagen Composites

Journal of Biomaterials Applications, 1993
Linear and three-dimensional polymer composites were prepared on the basis of poly(2-hydroxyethyl methacrylate)-pHEMA-and collagen. Their biological properties were tested by in vitro as well as in vivo methods. The composite material (unlike pure pHEMA) supported myoblast adhesion as well as their fusion into multinuclear myotubes in vitro.
M, Stol, K, Smetana
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2‐Hydroxyethyl methacrylate as an inhibitor of matrix metalloproteinase‐2

European Journal of Oral Sciences, 2009
This study evaluated the effect of different concentrations of 2‐hydroxyethyl methacrylate (HEMA) on the inhibition of matrix metalloproteinase‐2 (MMP‐2) in vitro. Mouse gingival explants were cultured overnight in Dulbecco’s modified Eagle’s minimal essential medium, following which the expression of secreted enzymes was analyzed by gelatin zymography
Rodrigo V, Carvalho, Fabrício A, Ogliari, Ana P, de Souza, Adriana F, Silva, Cesar L, Petzhold, Sergio R P, Line, Evandro, Piva, Adriana, Etges   +7 more
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Polymerisation and degradation of 2-hydroxyethyl methacrylate and 2-ethoxyethyl methacrylate

2023
The real time bulk polymerisation of 2-hydroxyethyl methacrylate (HEMA) and 2-ethoxyethyl methacrylate (EEMA) initiated with benzoyl peroxide has been studied over a range of initiator concentrations and polymerisation temperatures with the purpose of evaluating the kinetic rate parameters for polymerisation across the entire range of conversion ...
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Elastic and swelling behavior of 2-hydroxyethyl methacrylate, diethylene glycol methacrylate, and methacrylic acid copolymers

Journal of Applied Polymer Science, 1997
The elastic and swelling behavior of copolymers of 2-hydroxyethyl methacrylate, diethylene glycol methacrylate, and methacrylic acid crosslinked with ethylene glycol dimethacrylate has been studied. In the range of copolymer composition studied, Young's modulus of the swollen networks increases with the content of methacrylic acid, and its dependence ...
Ivan Krakovský, Miroslava Jelínková, Jiří Vacík   +2 more
openaire   +1 more source