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Polymer Technology

Polymer Technology
The organic acid monomer in nylon 66 is

Sebasic acid
Terephthalic acid
Adipic acid
Benzoic acid

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Polymer Technology
The rate controlling step in the manufacture of silicone rubber is the

Condensation of siloxane to silicone
Polymer termination step
None of these
Initial hydrolysis of silicone monomer

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Polymer Technology
Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.

Polyester
Polyurathane
Polycarbonate
Polysulphone

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Polymer Technology
Which of the following polymers has the tendency of decomposing before melting?

None of these
PVC
Polystyrene
Nylon

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Polymer Technology
Condensation polymerisation is not involved in the manufacture of

Polythene
Terylene
Nylon
Teflon

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Polymer Technology
Density of low density polythene is about __________ gm/c.c.

0.81
0.56
0.91
0.38

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