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Polymer Technology

Polymer Technology
Molecular weight of polymers are in the range of

10⁹-10¹¹
10 to 10³
10⁷-10⁹
10²-10⁷

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Polymer Technology
Polymers are

Macromolecules
Micromolecules
Sub-micromolecules
None of these

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Polymer Technology
Styrene butadiene rubber is commercially manufactured by

Suspension polymerisation
Solution polymerisation
Bulk polymerisation
Emulsion polymerisation

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Polymer Technology
Chain growth polymerisation is a process, in which the monomers are added in a chain fashion, and it requires an initiator to produce the free radical. An example of chain growth polymerisation products is

Teflon
Nylon-66
Polyester
Bakelite

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Polymer Technology
Epoxy resin is

A good abrasive
A polyester
Not used for surface coating
An elastomer

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Polymer Technology
Molecular weights of plastics ranges from

10⁹ to l0¹¹
5000 to 1000
20000 to 25000
1000 to 5000

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