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Polymer Technology

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

Harder
Having higher melting point
None of these
More abrasion resistant

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

Of the same monomer by elimination of small molecules of water
None of these
With the elimination of small amount of water
In a chain without the elimination of water

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Polymer Technology
Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is

V₂O₅
Ni
Fe
Aluminium triethyl combined with titanium tetrachloride

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Polymer Technology
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of

Buna S
Butyl rubber
Bunai N
Cold SBR

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Polymer Technology
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used

For surface coating of automobiles & air crafts
For fibre making
As plasticiser for PVC & nitrocellulose
For film forming materials

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Polymer Technology
Alkyd resin can not be used for making

Plasticiser
Paint & varnish
Film forming materials
Fibres

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