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Polymer Technology

Polymer Technology
Poly tetra flouro ethylene (PTFE) is known as

Bakelite
Celluloid
Dacron
Teflon

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Polymer Technology
Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.

50 to 75
100 to 150
250-280
-20 to 25

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Polymer Technology
Bristles of tooth brushes are made of

Polystyrene
Nylon-66
Nylon-6
PVC

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Polymer Technology
Addition of stabiliser during PVC manufacture is done to

Prevent its thermal degradation
Improve its impact strength
Reduce the melt viscosity & glass transition temperature
Improve its elasticity

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Polymer Technology
Nylon-66 is manufactured from

Caprolactum
Adipic acid and hexamenthylene diamine
Maleic anhydride and hexamethylene diamine
Dimethyl terephthalate (DMT) and ethylene glycol

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Polymer Technology
90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.

250-280
10-30
-5
500-600

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