Water diffusion in methacrylate based copolymer hydrogels of 2-hydroxyethyl methacrylate
Data(s) |
01/01/2004
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Resumo |
The 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. The diffusion coefficients of water were determined from mass measurements and NMR imaging studies. They were found to vary from 1.7 +/- 0.2 x 10(-11) m(2) s(-1) for polyHEMA at 37 degreesC to lower values for the copolymers. The mass of water absorbed at equilibrium relative to the mass of dry polymer varied from 52-58 wt% for polyHEMA to lower values for the copolymers. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Wiley-VCH Verlag |
Palavras-Chave | #Biocompatibility #Polymers #Sorption #C1 #291401 Polymers #670707 Inorganic industrial chemicals |
Tipo |
Journal Article |