Cross linked polymers formed from bi-and trifunctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer ______________ properties?

Related Mcqs:

Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from ______________ resins?

A. Epoxy B. Phenol formaldehyde C. Urea formaldehyde D. Melamine formaldehyde...

Vinyl flooring is done using _____________ sheets?

A. Polypropylene B. PVC C. Polythene D. Polyvinyl acetate...

Pick out the wrong statement ?

A. Addition polymers are generally formed by chain growth polymerisation B. Condensation polymers are generally formed by step growth polymerisation C. Teflon is formed by step growth polymerisation D. Bakelite is formed by step growth polymerisation...

Polyvinyl chloride (PVC) ____________________?

A. Is produced by Polycondensation reaction B. Uses either emulsion or suspension polymerisation methods C. Can be made thermosetting by adding a plasticiser D. Softening temperature is 200°C...

Plastic articles are normally produced by _____________ moulding?

A. Green sand B. Injection C. Shell D. Dry sand...