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19 Cards in this Set

  • Front
  • Back

Nylon 6,6 monomer?

Adipic acid


Hexamethylene diamide

Natutal rubber monomer

Isoprene units

Gun cotton

Cellulose triacetate

Dacron or terylene monomer

Terepthalic acid


Ethelene glycol

Buna S and Buna N

1,3 butanamide + styrene


1,3 butanamide + vinyl cyanide

Bakelite

Phenol + formaldehyde

Nylon 6

E Caprolactum

Give examples of linear, Branched and cross linked polymers

Examples of Elastomers, fibres, thermosetting and thermoplastic polymers

Catalalyst for polymerisation of polyethene

Diff between :


2. Isoprene


2. Polyisoprene


3. Chloroprene


4. Neoprene

Polymethyl methyl acrylate

Rayon

Cellulose acetate

Free radical generating initiator

Temperatures for formation of


1. Nylon 6,6


2. Nylon 6


3. Polyesters

1.553


2.543-533


3.420-460


State 5 characteristics of Natural Rubber

1. Soft at high temperatures (more than 335 K)


2. Brittle at low temperatures (less than 283 K)


3. High water absorption capacity


4. Soluble in non polar solvents


5. Non resistant to attack by oxidizing agents.

Temperature range of vulcanisation


373 to 415 K

Cross linking agent in tyre rubber

5% Sulphur

Uses of styrene

1.Insulator


2. Wrapping material


3.manufacture of : toys, radio, TV cabinets