Crosslinkability

crosslinkable Polyvinylpyrrolidone
Luvitec® PVP can react with the matrix according to a physical interaction with hydrogen dipolar links. Therefore, it won't migrate and crosslinkability has a positive impact on tack duration and quality which is a very important aspect in terms of process reliability and manufacturing.

Moreover, when crosslinked, Luvitec® PVP is capable of swelling in polar solvents such as water. On account of its outstanding adhesion and physiological compatibility, such weakly crosslinked PVP with high water content forms hydrogel and is employed as a skin-adhesive gel. hydrogel polyvinylpyrrolidone

3 crosslinking methods:

Thermal curing
Chemical curing
Radiation curing

Recommended Luvitec® grades for applications needing Crosslinkability

Recommended Products	Polyvinylpyrrolidone Benefits
Luvitec® K30	vinylpyrrolidone homopolymer, low viscosity, crosslink at high pH
Luvitec® K90	vinylpyrrolidone homopolymer, high viscosity, crosslink using various curing methods, used to formulate hydrogels for skin adhesives
Luvitec® VA-64	vinylpyrrolidone/vinylacetate copolymer, good adherence, low melting point (90°C)