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Polymer Technology

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

Ethyl chloride
Ethylene dichloride
Chloroform
Chloroethene

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Polymer Technology
Bakelite is

Not a polymer
Same as polytetra flouro ethylene (PTFE)
Same as thermoset phenol formaldehyde
An inorganic polymer

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Polymer Technology
Flexible foam (for mattresses) are usually made of

Polyamides
Silicone rubber
PVC
Polyurethanes

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Polymer Technology
Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ?

Teflon
Water impermeable cellophane
Cellulose acetate
Polythene

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Polymer Technology
Polyurathane can not be used to make

Automobile cushion
Thermal insulation in refrigerator
Coating and adhesive
Fibre reinforced plastic (FRP)

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Polymer Technology
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used

For film forming materials
For surface coating of automobiles & air crafts
As plasticiser for PVC & nitrocellulose
For fibre making

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