pvp k-81|86 mb
chemistry: vp and derivatives
chemical name: polyvinylpyrrolidone
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Polyvinylpyrrolidone is a hygroscopic, amorphous polymer supplied as a white, free-flowing powder or a clear aqueous solution. Available in several molecular weight grades, they are characterized by K-value, and used in a great variety of applications. Polyvinylpyrrolidone can be plasticized with water and most common organic plasticizers. It is considered to be physiologically inert
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features and benefits - excellent solubility in water and non-polar solvents
- forms lubricious hydrogels and coatings for medical devices
- low solution viscosity: workable solution viscosity at high polymer levels makes it easy to use in several manufacturing equipment
- non-ionic: solution viscosity is not affected by changes in pH or the presence of electrolytes, will not form complexes or interact with ionic drug actives
- interfacially active: inhibits crystallization of inactive ingredients, stabilizes suspensions, dispersions and emulsions
applications - tissue engineering scaffolds
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