The copolymerization of Vinylpyrrolidone and Vinyl Acetate monomers produces the PVP/VA Copolymer. This Copolymer is also water-soluble but is less hygroscopic and more flexible than pure PVP. These properties optimize its film-forming and binding characteristics, making it preferred in coatings, films, and as a binder in pharmaceutical and cosmetic applications.
Classification and Characteristics
| Chemical Name | Vinylpyrrolidone/Vinyl Acetate Copolymer |
|---|---|
| CAS Number | 25086-89-9 |
| HS Code | 390591 For Powder and Solution Grades |
| INCI Name | VP/VA Copolymer |
Functionality Related Characteristics
| INCI Functions | Description: Acetic acid ethenyl ester, polymer with 1-ethenyl-2-pyrrolidone Functions: Binding Film-Forming Hair Fixing |
|---|---|
| Synthetic Copolymer | |
| Elasticity | ++ higher than PVP |
| Hygroscopicity | + less than PVP |
| Solubility | ++ water soluble |
| Glass Transition Temperature (TG) | 100°C - 130°C PVP/VA64 around 110°C |