Results 221 to 230 of about 29,593 (257)
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Water transport in crosslinked 2‐hydroxyethyl methacrylate
Polymer Engineering & Science, 2000AbstractWater transport in crosslinked 2‐hydroxyethyl methacrylate (HEMA) was investigated. Crosslinked HEMA was irradiated by gamma ray in vacuum for this study. The sorption data of de‐ionized water transport in crosslinked HEMA subjected to various gamma ray dosages are in excellent agreement with Harmon's model which accounts for Case I, Case II ...
K. F. Chou, Sanboh Lee, C. C. Han
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Poly(2-hydroxyethyl methacrylate)
2009Abstract Major Applications Contact lenses, intraocular lenses, drug delivery systems, biomedical applications, chromatographic columns, hemodialysis membranes, flocculating agents. Properties of Special Interest Hydrophilicity. Good swelling in water and electrolytic solutions.
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Transport through crosslinked poly(2‐hydroxyethyl methacrylate) hydrogel membranes
Journal of Biomedical Materials Research, 1973AbstractThe transport of urea and other biologically interesting solutes in aqueous solution across poly(2‐hydroxyethyl methacrylate) (p‐HEMA) hydrogel membranes has been studied. The results show that p‐HEMA membranes have a high permeability to urea due to a strong interaction between the polymer and urea, and, in addition, they are consistent with a
B D, Ratner, I F, Miller
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2-Hydroxyethyl methacrylate-terminated polyurethane/polyurethane interpenetrating polymer networks
Journal of Biomedical Materials Research, 1997The interpenetrating polymer networks (INPs) of polyurethane (PU) and 2-hydroxyethyl methacrylate (MEHA)-terminated polyurethane (HPU) were prepared by solution polymerization. PU prepolymer was synthesized from 4,4-diphenyl methane diisocyanate (MDI) and poly(propylene oxide) glycol (PPG).
C J, Liu +3 more
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Conformational analysis of poly(2‐hydroxyethyl methacrylate)
Journal of Polymer Science Part A: Polymer Chemistry, 1991AbstractThe poly(2‐hydroxyethyl methacrylate) (PHEMA) is a disubstituted vinyl chain in which the substituents CO2CH2CH2OH and CH3 differ in size and shape. In order to verify the various characteristics of the PHEMA chain, the conformational energy calculations for meso and racemic diads, which are the segments consisting of the stereoregular ...
Jeong Hyeok Yoon +3 more
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Polymer, 1991
Abstract The complex shear moduli of crosslinked poly(2-hydroxyethyl methacrylate) and poly(2-hydroxyethyl methacrylate-co-methyl methacrylate) hydrogels were measured as a function of water content, temperature and frequency using dynamic mechanical spectroscopy.
Steven R. Lustig +2 more
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Abstract The complex shear moduli of crosslinked poly(2-hydroxyethyl methacrylate) and poly(2-hydroxyethyl methacrylate-co-methyl methacrylate) hydrogels were measured as a function of water content, temperature and frequency using dynamic mechanical spectroscopy.
Steven R. Lustig +2 more
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Journal of Biomedical Materials Research, 1987
AbstractA strip of partially hydrolyzed poly (2‐hydroxyethyl methacrylate) containing 65%–75% H2O was implanted into the anterior eye chamber of 11 Chinchilla rabbits. No pathological changes were found in the iris or in the ciliary body. The pathological findings in the cornea accompanying implanation of a hydrogel strip to the anterior chamber were ...
K, Smetana +3 more
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AbstractA strip of partially hydrolyzed poly (2‐hydroxyethyl methacrylate) containing 65%–75% H2O was implanted into the anterior eye chamber of 11 Chinchilla rabbits. No pathological changes were found in the iris or in the ciliary body. The pathological findings in the cornea accompanying implanation of a hydrogel strip to the anterior chamber were ...
K, Smetana +3 more
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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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Materials & Design, 2009
Abstract The influence of 2-hydroxyethyl methacrylate (HEMA) on the properties of HEMA-added dental glass ionomer (HAGI) should be determined systematically to develop a smart restorative material. The purposes of this study were to determine the influence of incrementally added HEMA in experimental HAGIs on the color, translucency, opalescence ...
Ho-Nam Lim +4 more
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Abstract The influence of 2-hydroxyethyl methacrylate (HEMA) on the properties of HEMA-added dental glass ionomer (HAGI) should be determined systematically to develop a smart restorative material. The purposes of this study were to determine the influence of incrementally added HEMA in experimental HAGIs on the color, translucency, opalescence ...
Ho-Nam Lim +4 more
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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 +2 more
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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 +2 more
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