PDMS / VMQ
Silicone Rubber (Polydimethylsiloxane)
Glass Transition (Tg)
-125 °C
Melting Point (Tm)
-40 °C
Density
0.97–1.20 g/cm³
CAS Number
9016-00-6
Recycling Code
None
Category
Elastomer
Repeat Unit
–[Si(CH₃)₂–O]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
Si–O backbone gives the widest service range of any elastomer (−60 to +230 °C); physiologically inert; high gas permeability; low tensile strength.
Applications
Medical implants and tubing, bakeware, keypads, microfluidic chips.