Question

Which of the following properties is/are true for a silicone polymer?

A) Thermally resistant and have low dielectric constant

B) Resistant towards oxidation and used in grease

C) Biocompatible

D) Hydrophobic in nature

• A. a) A & B
• B. b) A, B & C
• C. c) B, C, & D
• D. d) A, B, C & D

Answer 1

The correct option is D

d) A, B, C & D

Silicone or Polysiloxane is an inorganic polymer whose molecules are consists of alternate Silicon and Oxygen atoms with general formula (-R2-Si-O-Si-R2-) where R is an organic group.

Example:- Polydimethysiloxane (PDMS) in which R= -CH3

Properties

• Thermally resistant and have low dielectric constant
• Resistant towards oxidation and used in grease
• Biocompatible
• Hydrophobic in nature
• They are chemically inert
• Resistance to water (i.e.Hydrophobic in nature)
• Resistance to oxidation
• Stability at both high and low temperatures

Uses

• Lubricating greases
• Electric insulation
• Biomedical implants