Product Name: Modified polyvinylpyrrolidone (Modified PVP)
Molecular Weight: Approximately 12,000
Solids Content: 25.7%
pH Range: 4-5
Appearance: Solution

Product Description:
Modified polyvinylpyrrolidone (PVP) refers to polymers derived from basic poly(vinylpyrrolidone) that have undergone chemical or physical alterations—such as cross-linking, grafting, or surface functionalization—to overcome standard PVP vulnerabilities like high hygroscopicity and thermal instability.

Key Types and Modification Strategies:
- Chemical Derivatization: Post-polymerization modification introduces bioactive, antimicrobial, or anti-quorum sensing properties to an otherwise biologically inert polymer matrix
- Polymer Blending: Blending PVP with polymers like poly(vinyl alcohol) (PVA) improves heat resistance, expands the glassy region at high temperatures, and controls hydrophilicity via hydrogen bonding
- Nanoparticle and Surface Modification: PVP acts as a non-covalent or covalent modifier (using materials like stearic acid or octadecylamine) to stabilize carbon nanotubes, coat silver nanoparticles for low-temperature electronic sintering, or create hydrophobic sheath layers on hygroscopic nanofibers

Core Applications:
- Construction Materials: Used as an interfacial modifier in polymer-modified concretes and steel fiber interfaces to reduce water absorption by over 35% and boost flexural and bond strengths
- Biomedical and Antifouling Surfaces: Surface modification prevents nonspecific protein adsorption, acting as an effective antifouling agent
- Advanced Composites: Facilitates the uniform dispersion of inorganic nanoparticles (like zinc oxide or multiwalled carbon nanotubes) in electrospun composite fibers for sensors and filtration

Custom synthesis and modification available upon request.