PVP (Polyvinylpyrrolidone)
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Transcript of PVP (Polyvinylpyrrolidone)
PVP ( Polyvinylpyrrolidone)
is α film former, protective colloid and suspending agent, dye-receptive agent binder and stabilizer, detoxicant, complexing agent
physiologically acceptable polymer··· and more!
PVP is a film-forming polymer which accounts for many of its uses. It also exhibits a high degree of compatibility with inorganic salt solutions, natural and synthet ic resins, and other chemicals.
PVP forms molecular adducts with many other substances. This can result in solubilization or in precipitation, depending on the compound involved. Chemical complexes of practical importance are formed, for example, with tannins that are useful in beverage clarification, and with iodine for use in improved pharmaceuticals. Physiological effects, such as toxicity may be modified, pharmacological act ion of drugs enhanced, and durat ion of effect prolonged.
PVP is a water-soluble, nonionic polymer that is unique because it is also freely soluble in many or
ganic solvents. In aqueous solutions, the concentration is limited only by the viscosity.
Representative organic solvents for the polymer include alcohols, organic acids, some chlorinated hydrocarbons, nitroparaffins, and amines. The use of anhydrous material or of a mutual solvent considerably extends this list.
We'd like to tell you more about this very unusual polymer. Just take a moment and fill out the coupon. We'll send you a free sample and technical literature.
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