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Polymer Technology

Polymer Technology
Which of the following is not a condensation polymer?

Melamine polymer
Polymethylmethacrylate (PMMA)
Bakelite
None of these

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Polymer Technology
Nylon-6 as compared to nylon-66 is

None of these
Harder
Having higher melting point
More abrasion resistant

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Polymer Technology
In condensation polymerisation as compared to addition polymerisation

The monomers contain two functional groups
The monomers are unsaturated compounds
No co-product is lost
Generally only one monomer is involved

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Polymer Technology
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is

7 kgf/cm² and 70 °C
1 kgf/cm² (gage) and 70°C
1000 kgf/cm² and 100°C
7 kgf/cm² and 700°C

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Polymer Technology
Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer.

Thermosetting
Glass like transparent
Linear
Thermoplastic

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Polymer Technology
__________ tubes are good substitude for human blood vessels onrheart by-pass operation.

Polystyrene
Teflon/dacron
Polythene
PVC

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