Results 111 to 120 of about 12,417 (163)
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Collection of Czechoslovak Chemical Communications, 2003
A series of macroporous crosslinked copolymers of 2-hydroxyethyl methacrylate (HEMA) with methacrylic acid (MA) was prepared in the presence of fractionated particles of sodium chloride. The hydrogels were characterized by the number of pores in unit volume, the pore size, the water content in pores and diffusion parameters.
Martin Přádný +6 more
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A series of macroporous crosslinked copolymers of 2-hydroxyethyl methacrylate (HEMA) with methacrylic acid (MA) was prepared in the presence of fractionated particles of sodium chloride. The hydrogels were characterized by the number of pores in unit volume, the pore size, the water content in pores and diffusion parameters.
Martin Přádný +6 more
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Immobilization of Enzymes on 2‐Hydroxyethyl Methacrylate and Glycidyl Methacrylate Copolymer Brushes
Chemistry – An Asian Journal, 2014AbstractThe immobilization of enzymes is of paramount importance to maintain their activity and stability. In this study, surface‐initiated atom‐transfer radical polymerization was applied to prepare poly(2‐hydroxyethyl methacrylate)‐block‐poly(2‐hydroxyethyl methacrylate‐co‐glycidyl methacrylate) brushes on glass slides.
Tanchen Ren +3 more
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Secretion of recombinant proteins from hydroxyethyl methacrylate-methyl methacrylate capsules
Biotechnology and Bioengineering, 1996Current human gene therapy relies on genetic modification of the patient's own cells. An alternate nonautologous approach is to use universal cell lines engineered to secrete therapeutic products. Protection with immunoisolation devices before implantation would allow the use of the same recombinant cell line for treating different patients, thus ...
M, Tse +3 more
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International Journal of Polymeric Materials, 1976
Abstract The mechanical behaviour of 2-hydroxyethyl methacrylate-methacrylonitrile (HEMA-MAN)and 2-hydroxyethyl methacrylate-acrylonitrile (HEMA-AN) copolymer networks of various composition prepared in presence of 0.6 × 10−4 mol cm−3 ethylene dimethacrylate and 20 vol.-% dimethylformamide were investigated. The viscoelastic and stress-strain behaviour
J. Janáĉek +3 more
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Abstract The mechanical behaviour of 2-hydroxyethyl methacrylate-methacrylonitrile (HEMA-MAN)and 2-hydroxyethyl methacrylate-acrylonitrile (HEMA-AN) copolymer networks of various composition prepared in presence of 0.6 × 10−4 mol cm−3 ethylene dimethacrylate and 20 vol.-% dimethylformamide were investigated. The viscoelastic and stress-strain behaviour
J. Janáĉek +3 more
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The toxicokinetics and distribution of 2-hydroxyethyl methacrylate in mice
Biomaterials, 2009The cytotoxicity of dental composites has been attributed to the release of residual monomers from polymerized resin-based composites due to the degradation processes or the incomplete polymerisation of materials. 2-Hydroxyethyl methacrylate (HEMA) is one of the major components released from dental resin-based composites.
J, Durner +5 more
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Preparation of poly(hydroxyethyl methacrylate) and poly(hydroxypropyl methacrylate) latices
Macromolecular Rapid Communications, 1998Hydroxyethyl methacrylate and hydroxypropyl methacrylate (both having extremely high solubilities in water) were polymerized in aqueous medium to obtain the respective polymer latices with a solid content as high as 10 wt.-%. The initial state of the polymerization is in solution rather than in dispersion, and the polymer product is sparingly soluble ...
Hou-Hsein Chu, Dow-Chon Fu
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Copolymerisation of 2-hydroxyethyl methacrylate with siloxanyl monomers
European Polymer Journal, 1984Abstract Acryloxymethylpentamethyldisiloxane (AMS) and methacryloxymethylpentamethyldisiloxane (MMS) have been prepared and purified chromatographically. Some physicochemical properties have been measured for these monomers as well as for highly purified 2-hydroxyethyl methacrylate (HEMA). Hydroxyl group analysis on copolymers of AMS with HEMA and of
ALISSA, MA +4 more
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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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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, 2004AbstractThe 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. +4 more
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In vivo biocompatibility of collagenpoly(hydroxyethyl methacrylate) hydrogels
Biomaterials, 1990Collagen-p(HEMA) hydrogels were subcutaneously implanted in rats for up to 6 month and the immediate short- and long-term tissue response to these implants was studied. Histopathological data indicated that the tissue reaction at the implant site progressed from an initial acute inflammatory response characterized by the presence of eosinophils and ...
R, Jeyanthi, K P, Rao
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