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Chemical Engineering :: Polymer Technology

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Polymer Technology - Section 6

  1. Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m2. Which of the following polymers has the maximum film elongation (of the order of 100%) ?

    2. A.
    Water impermeable cellophane
    B.
    Polythene
    C.
    Cellulose acetate
    D.
    Teflon

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  2. Viscosity of a polymer solution or melt

    3. A.
    decreases with increase in molecular weight.
    B.
    decreases with increase in temperature.
    C.
    increases with increase in temperature.
    D.
    does not vary with temperature rise.

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  3. Which of the following is not a polymer of two monomers ?

    4. A.
    Teflon
    B.
    Bakelite
    C.
    SBR
    D.
    None of these

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  4. β - glucose is the monomer of

    5. A.
    cellulose
    B.
    starch
    C.
    protein
    D.
    none of these

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  5. Which of the following polymers shows the highest anti-tacking properties ?

    6. A.
    Melamine formaldehyde resin
    B.
    Phenolic resin
    C.
    Epoxy resin
    D.
    Alkyd resin

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  6. Buna-N is also called

    7. A.
    butyl rubber
    B.
    nitrile rubber
    C.
    neoprene
    D.
    thiokol

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  7. Polypropylene is preferred to polythene, because the former is

    8. A.
    non-inflammable
    B.
    harder
    C.
    stronger
    D.
    both(b) & (c)

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  8. Nylon-6 as compared to nylon-66 is

    9. A.
    harder.
    B.
    more abrasion resistant.
    C.
    having higher melting point.
    D.
    none of these.

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  9. Alkyd resin is a/an

    10. A.
    polyamide
    B.
    polyester
    C.
    polyolefin
    D.
    addition polymer

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  10. Most commonly used rubber vulcanisation agent is

    11. A.
    sulphur
    B.
    bromine
    C.
    platinum
    D.
    alumina

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