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Polymer Technology

Polymer Technology
SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at

2:1
3:1
1:2
1:3

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Polymer Technology
Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten

Saturated polyester
Either B or C
Polystyrene
Polyurathane

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Polymer Technology
Thermosetting resins/polymers as compared to thermoplastic ones are

Easily reshaped & reused
Formed by addition polymerisation only
Soluble in all organic solvents
More brittle

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Polymer Technology
Polycaprolactum is

Dacron
Nylon-6
Rayon
Nylon-66

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Polymer Technology
Phosphates (e.g., triceresyl, tributyl, tetrabutyl, tripheyl etc.) are added to polymers to act as

Anti-shrinkage agents
Hardeners
Transparency improver
Plasticisers

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Polymer Technology
Unbreakable crockeries are made from __________ polymers.

Melamine
Polyurathane
Polystyrene
Polystyrene

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