1.

Write the names and structures of the monomers of the following polymers: (i) Buna-S (ii) Buna-N (iii) Dacron (iv) Neoprene.

Answer»

Solution :(i) Buna - N : `CH_(2) = underset("1,3 -Butadiene")(CH) = CH_(2) = CH_(2) and C_(6)H_(5) - underset("Styrene")(CH) =CH_(2)`
(ii) Buna` - N : CH_(2) = underset("1,3- Butadiene")(CH) - CH = CH_(2) and CH_(2) = underset("Acrylonitrile")(CH) - CN`
DACRON: `HO - underset("Ethylene glycol")(CH_(2)-CH_(2)) - OH ` and
(iv)Neoperene : `underset("CHLOROPRENE or 2 - chloro - 1,3-butadiene")(CH_(2) = overset(Cl) overset(|)(C) - CH = CH_(2))`


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