Polymer Technology
Benzoyl chloride is not used as a catalyst in the manufacture of

Polyvinyl acetate
Polyvinyl chloride-co-vinylacetate
Polystyrene
Polypropylene

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Polymer Technology
Synthetic rubber

Is brittle at low temperature
Is highly permeable to air & water and is readily attacked by chemicals & atmospheric gases
Deforms, if stretched to double of its original dimension
Is softer at higher temperature

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