## Abstract Poly(2βhydroxyethyl methacrylate)β(PHEMA) has been prepared by polymerizing in presence of different types of waterβsoluble additives, at various amounts, which were removed by swelling in water. Mechanical properties of swollen samples have been measured and analyzed by using the class
Thermoelasticity of the poly(2-hydroxyethyl methacrylate) gel
β Scribed by K.L. Dorrington; N.G. McCrum; W.R. Watson
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 770 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0032-3861
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A strip of partially hydrolyzed poly (2-hydroxyethyl methacrylate) containing 65%-75% H 2 0 was implanted intv the antenor 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 implantation of
A~traet--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
## Abstract The 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. Large hys
Films were prepared by reaction of HEMA monomer with the crosslinking agent ethyleneglycol dimethacrylate (EGDMA) at crosslinking ratios, X, of 0.005, 0.01, 0.0128, 0.025, and 0.050 mol EGDMA/mol HEMA in the presence of 40 wt. % water at 60Β°C for 12 h. These membranes were subsequently swollen in wa