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Polymer Technology

Polymer Technology
Polypropylene compared to polythene is

All of these
Stronger
Lighter
Harder

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Polymer Technology
__________ scrap can be recycled & reutilised.

Epoxy resin
Polythene
Bakelite
None of these

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Polymer Technology
Polycaprolactum is

Nylon-66
Nylon-6
Dacron
Rayon

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Polymer Technology
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of

Urea-formaldehyde resins
Vinyl polymers
Polyamides
Siloxane elastomers

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Polymer Technology
Polycondensation reaction of polymerisation

Produces only thermoplastic material
Does not produce linear polymers
Does not need any catalyst
Produces epoxy polymers

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Polymer Technology
Rayon is superior to cotton in making gauge for wound treatment, because rayon

Both B & C
Does not stick to the wound unlike cotton
Is a synthetic polymer
Can absorb over 90% of its own weight of water

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