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POLYMER TECHNOLOGY

Polymer Technology
In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of

Polyesters
Polyamides
Phenol formaldehyde resins
Cross linked polystyrene

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Polymer Technology
A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of

Vinyl polymers
Urea-formaldehyde resins
Polyamides
Siloxane elastomers

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Polymer Technology
Polycondensation reaction of polymerisation

Does not produce linear polymers
Does not need any catalyst
Produces only thermoplastic material
Produces epoxy polymers

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Polymer Technology
The only natural thermoplastic resin, which is a product of animal life is

Shellac
Amber
Copal
Rosin

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Polymer Technology
Cation exchange resins used in water treatment is made from __________ resin.

Amino
Phenolic
Urea formaldehyde
Epoxy

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