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Polyvinyl hydrogel

Other hydrogels are prepared from poly(a-hydroxylic) acids, e.g., lactic acid, polyacrylic acid, acrylamides and acrylated polyvinyl alcohol, and polyethylene glycol. [Pg.209]

A hydrogel placed in an excess of water will absorb the liquid until it reaches a maximum. This ability is typically reported as the percent water in a fully swollen gel. The hydrophilicity of the polymer and the degree of cross-linking determine the degree to which the gel will absorb. Some hydrogels contain as much as 99% water. An acrylic acid gel will have a higher equilibrium moisture than a polyvinyl alcohol gel. This characteristic is not unlike the hydrodynamic volume factor described above. [Pg.178]

Polychloroethers, Acetal polymers, Halogenated poly vinylidene fluoride Loosely cross-linked hydrogels of polyhydroxyethyl methacrylate, Polyethylene oxide, Polyvinyl alcohol or Polyvinyl pyrrolidone ... [Pg.80]

Risbud, M.V. Hardikar, A.A. Bhat, S.V. Bhonde, R.R. pH-sensitive freeze-dried chitosan-polyvinyl pyrrohdone hydrogels as controlled release system for antibiotic delivery. J. Control. Release 2000, 68, 23-30. [Pg.2037]

Risbud, M.V. Bhat, S.V. Properties of polyvinyl pyrroli-done/j8-chitosan hydrogel membranes and their biocompatibility evaluation by haemorheological method. J. Mater. Sci. Mater. Med. 2001, 12, 75-79. [Pg.2037]

Razzak, M.T. Darwis, D. Sukirno, Z. Irradiation of polyvinyl alcohol and polyvinyl pyrrolidone blended hydrogel for wound dressing. Radiat. Phys. Chem. 2001, 62, 107-113. [Pg.2038]

In addition to these materials, several others, such as polyurethanes, polysulfones, polyvinyl alcohol, and various copolymers, have been tried or are under development. Recently, silicon hydrogel lenses with high oxygen permeability were marketed. The future... [Pg.2202]

Wu M, Bao B, Yoshii F, Makuuchi K. Irradiation of cross-linked polyvinyl alcohol blended hydrogel for wound dressing. / Radio-anal Nuclear Chem 2001 250(2) 391—395. [Pg.127]

Taylor, C., Kenausis, G., Katalds, I., and Heller, A. (1995) Wiring of glucose oxidase within a hydrogel made with polyvinyl imidazole complexed with... [Pg.75]

Schmedlen RH, Masters KS. West JL 2002) Photocrosslinkable polyvinyl alcohol hydrogels that can be modified with cell adhesion peptides for use in tissue engineering. Biomaterials 23 4325-4332... [Pg.247]

Tungstophosphoric acid immobilized in polyvinyl alcohol hydrogel beads as heterogeneous catalyst... [Pg.731]

Polymeric thickeners Gums Acacia Alginates Carageenan Chitosan Collagen Tragacanth Xantham Celluloses Sodium carboxymethyl Hydroxyethyl Hydroxypropyl Hyd roxypro pyl m ethyl Acrylic acids Carbomers Polycarbophil Colloidal solids Silica Clays Microcrystalline cellulose Hydrogels Polyvinyl alcohol Polyvinylpyrrolidone Thermoreversible polymers Poloxamers... [Pg.545]

See other pages where Polyvinyl hydrogel is mentioned: [Pg.170]    [Pg.606]    [Pg.224]    [Pg.210]    [Pg.163]    [Pg.164]    [Pg.164]    [Pg.255]    [Pg.209]    [Pg.222]    [Pg.19]    [Pg.260]    [Pg.108]    [Pg.351]    [Pg.376]    [Pg.542]    [Pg.59]    [Pg.384]    [Pg.541]    [Pg.1294]    [Pg.1888]    [Pg.2025]    [Pg.2031]    [Pg.2125]    [Pg.1352]    [Pg.1354]    [Pg.147]    [Pg.148]    [Pg.148]    [Pg.134]    [Pg.731]    [Pg.732]    [Pg.161]    [Pg.224]    [Pg.315]    [Pg.48]   
See also in sourсe #XX -- [ Pg.227 ]



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Polyvinyl alcohol hydrogels

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