PVAc
Polyvinyl Acetate
Glass Transition (Tg)
30–35 °C
Melting Point (Tm)
— (amorphous)
Density
1.19 g/cm³
CAS Number
9003-20-7
Recycling Code
♺ 7
Category
Functional & Smart
Repeat Unit
–[CH₂–CH(OCOCH₃)]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
Tg just above room temperature gives natural tack; the basis of white glue; precursor to PVA and PVB.
Applications
Wood glue (PVA glue), paints, chewing-gum base, paper coating.