Polymer Technology

A. a copolymer.

B. a condensation polymer.

C. obtained by polymerising vinyl cyanide.

D. all (a), (b) and (c).

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12

The physical state in which polymers exist is

A. melts & rubber like state.

B. amorphous glassy state.

C. partially crystalline state.

D. all (a), (b) and (c).

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13

Molecular weight of polymers are in the range of

A. 10 to 10³

B. 10²-10⁷

C. 10⁷-10⁹

D. 10⁹-10¹¹

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14

The inter particle forces between linear chains in nylon-66 are __________ bonds.

A. hydrogen

B. covalant

C. ionic

D. none of these

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A. wet tear and bursting strength.

B. folding endurance

C. wet rub resistance

D. all (a), (b) & (c)

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