Pick out the wrong statement regarding the solubility characteristics of high polymers.

A copolymer of vinyl and vinylidine chloride is called

Epoxy resins (i.e., epoxide polymers)

Which of the following is not a natural fibre?

Polyurathane can not be used to make

Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically

__________ is a copolymer.

Epoxy resin is

Phenol formaldehyde

Polyesters are manufactured by the polycondensation reaction of

Styrene butadiene rubber (SBR) is

Adipic acid is an intermediate in the manufacture of

Softening point of high density polythene is about __________ °C.

__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

Which of the following is the lowest cost plastic commercially available ?

Polycaprolactum (Nylon -is produced by the condensation polymerisation of caprolactum at 240-280°C in which the conversion of caprolactum is about __________ percent.

Melt spinning of polymers involves the forcing of polymer melt through spinnerettes (fine holes) into an atmosphere kept at a temperature lower than the melting point of the polymer, which causes the fine diameter polymer melt to harden into filaments. Melt spinning is not used in case of the __________ fibres.

__________ is not a condensation polymer.

Which of the following polymers are produced by employing all bulk polymerisation, solution polymerisation & suspension polymerisation technique of addition (chain) polymerisation ?

Terylene is

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

Contact lenses for eyes are made of perspex, which is nothing but

Liners of bags are usually made of

Which of the following is an inorganic polymer ?

Polystyrene is a light, transparent, thermoplastic material used for making

Polyvinyl chloride (PVC)

Which of the following is not a condensation polymer ?

Thermosetting materials

A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of

Polycaprolactum is

Dacron is a

Polymerisation of poly functional monomers produces polymers having

Rexin (also called artificial leather), which is used for making table cover, automobile seat cover, shoes etc. is made by coating thick cloth with molten

Thermosetting plastic materials

Viscose rayon is

Hot drink (e.g, tea) cups are usually made of

Nylon-is a polyamide of

Polymers are

The repeating units of PTFE are

Poly Vinyl chloride (PVC) is a __________ material.

__________ moulding is used for shaping of thermosetting plastics exclusively.

Linear polymers are normally

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

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

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

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

Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.

The starting material used for the manufacture of caprolactum is

Nylonwhich is used for bristles making is superior to nylon6 due to its lower water absorption capacity, is a/an

Terylene is a/an