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  • Gels
  • Gels formed from commercially available polyvinyl alcohol (PVA) and 1,4-benzene diboronic acid (BdBA) in DMSO absorb NaOH efficiently from a bulk aqueous solution decreasing its pH. (rsc.org)
  • Polyvinyl alcohol films and gels have been reported as ophthalmic inserts, e.g. in the lower conjunctival sac when imbibed with pharmaceuticals such as tetracycline, pilocarpine, atropine and the like. (google.com)
  • sodium
  • This study proposes the use of sodium trimetaphosphate (STMP) crosslinked polyvinyl alcohol (PVA) as small diameter vascular graft due to its low thrombogenicity and excellent mechanical property. (uwaterloo.ca)
  • spectra
  • The spectra of internal friction and temperature variation in the frequency of free damped torsional vibrations excited in a polyvinyl alcohol (PVA) sample in the temperature range from -150 to 0°C were investigated. (springer.com)
  • The polyvinyl alcohol films, which contain HAuCl 4 (1 mM) in the presence of benzophenone, exhibit absorbance spectra at 30 minutes after the irradiation with the single laser (black line) and the two two-color lasers (red line). (photonics.com)
  • Polarized absorption (at 296 and 85 K), fluorescence, and photoacoustic (at 296 and 85 K) spectra of antenna complexes-phycobilisomes isolated from cyanobacteria Tolypothrix tenuis and Oscillatoria and embedded in isotropic and anisotropic polyvinyl alcohol films-were measured. (springer.com)
  • soluble
  • films of soluble film-forming material such as polyvinyl alcohol, it is the conventional practice to fiow a film of a solution of the film-forming material onto the casting surface, for example,'a metal wheel or belt, cause the solvent to be substantially completely removed from the liquid film whereby to form a self-sustaining film, and to strip the resulting film from the casting surface. (google.com)
  • groups
  • A similar study was carried out using groups of four male mongrel dogs that received 2 g of polyvinyl alcohol per day (equivalent to 200 mg/kg bw per day). (inchem.org)
  • solution
  • In U.S. Patent No. 4,874,562, there is exemplified a method of crystallizing a polyvinyl alcohol aqueous/organic solvent solution by cooling the solution to 0°C or less, preferably about -20°C, to crystallize out the polyvinyl alcohol and immersing the resulting gel in water. (google.com)
  • tears
  • Polyvinyl alcohol works by decreasing the surface tension of the tears so that they spread more easily over the surface of the eye and don't break into dry spots. (netdoctor.co.uk)