Q. Thermosetting polymers as compared to thermoplastic polymers

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Q. The monomer of natural rubber is

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Q. In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.

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Q. Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces

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Q. Dacron is a/an

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Q. All thermoplastic, thermosetting & elastic materials can be processed in a extrusion machine, however it can not be used for the production of plastic

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Q. Polymerisation product of C₂F₄ (carbon tetraflouride) is called P.T.F.E. (poly chloro tetra flouro ethylene). It is also called

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Q. Bakelite is a/an

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Q. Polyvinyl alcohol is used as a

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Q. Benzoyl chloride is not used as a catalyst in the manufacture of

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Q. The conversion of caprolactum in the above case is about __________ percent.

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Q. Polycaprolactum is also known as

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Q. __________ scrap can be recycled & reutilised.

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Q. The major component of acrylic fibres is

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Q. Which of the following polymers is used for making a non stick coating on frying pans ?

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Q. Which of the following polymers does not belong to the class of polyacrylate polymer ?

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Q. Tyres are made by

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Q. Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its

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Q. Identify the group in which all the polymers mentioned can be used to make fibres.

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Q. Molecular weights of plastics ranges from

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