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Polymer Technology

Polymer Technology
Main constituent of natural rubber is

Polybutadiene
Polystyrene
Poly chloroprene
Polyisoprene

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Polymer Technology
Polyesters are manufactured by the polycondensation reaction of

Carboxylic acid with ethylene
Inorganic acid with ethylene glycol
A single monomer
Dibasic acid with dihydric alcohol

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Polymer Technology
Polycaprolactum is

Nylon-6
Nylon-66
Rayon
Dacron

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Polymer Technology
Thermosetting polymers as compared to thermoplastic polymers

Are formed by addition polymerisation
None of these
Have three dimensional structure
Have linear structure

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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

PVC
Polypropylene
Polybutadiene
Terylene

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Polymer Technology
Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically

Polymethyl methacrylate (PMMA)
Polytetraflouroethylene(PTFE)
Phenolic resins
Polycarbonates

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