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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

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B

b) A, B & C

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C

c) B, C, & D

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D

d) A, B, C & D

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Solution

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


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