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Engineering
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Which of the following is a polyamide?

  • Option 1)

    Teflon

  • Option 2)

    Nylon­-66

  • Option 3)

    Terylene

  • Option 4)

    Bakelite

 
As we learnt in Nylon 6,6 - - Condensation polymerization of hexamethylenediamine with adipic acid under high pressure. - Copolymer, step growth - wherein - High tensile strength - Used in textile fabrics, bristles for brushes.    Nylon 6,6 is a polyamide.   Option 1) Teflon This option is incorrect. Option 2) Nylon­-66 This option is correct. Option 3) Terylene This option is...
Engineering
178 Views   |  

Which of the following is fully fluorinated polymer?

  • Option 1)

    Neoprene

  • Option 2)

    Teflon

  • Option 3)

    Thiokol

  • Option 4)

    PVC

 
As we learnt in Polytetrafluroethene / Teflon - -  Polymerization of tetrafluroethene (F2C = CF2) with free radical or persulphate at high pressure. -  Homopolymer. - wherein -  Chemically inert and resistant to attack by corrosive reagents. -  Used in making oil seals, gaskets, non-stick surface       Teflon is a homopolymer of tetrafluoroethene. Option 1) Neoprene This option is...
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