PVP
Polyvinylpyrrolidone
Glass Transition (Tg)
~175 °C
Melting Point (Tm)
— (amorphous)
Density
1.20 g/cm³
CAS Number
9003-39-8
Recycling Code
None
Category
Functional & Smart
Repeat Unit
–[CH₂–CH(NC₄H₆O)]ₙ–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Soluble in both water and many organic solvents — unusual; strong complexing ability (e.g. with iodine); excellent film former and binder.
Applications
Povidone-iodine antiseptic, tablet binder, hair sprays, battery electrodes.