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Polymer Technology

Polymer Technology
The monomer of poly vinyl chloride (PVC) is

Chloroform
Chloroethene
Ethyl chloride
Ethylene dichloride

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Polymer Technology
Celluloid is

Regenerated cellulose
Cellulose acetate
Cellulose nitrate
Cellulose acetate butyrate

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Polymer Technology
Nylon-66 compared to nylon-6 has

All of these
Higher hardness
Lower melting point
More abrasion resistant properties

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Polymer Technology
Plastic tubes & pipes are generally made by __________ moulding.

Injection
Compression
Transfer
Extrusion

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Polymer Technology
Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are

0°C and 3 kgf/cm²
- 20°C and 1 kgf/cm²
0°C and 1 kgf/cm²
5°C and 1 kgf/cm²

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Polymer Technology
In step growth polymerisation, condensation occurs in a stepwise manner with or without the elimination of smaller molecules. An example of step growth polymerisation product is

Polypropylene
Polybutadiene
Terylene
PVC

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