Define a polymer. Write the monomer used for the preparation of dacron. Mention a use of it.
A polymer is large but single chain-like molecule in which the repeating units derived from small molecules called monomers, are covalently linked. The process by which monomers are transformed into a polymer is called polymerization.
The monomers used for dacron is ethylene glycol (ethane-1,2-diol) and terephthalic acid (1,4-benzene dicarboxylic acid).
It gives a strong fibre hence used to blend cotton in clothing.
Write the names and molecular structure of the monomers of the following:
(i) Natural rubber (ii) Neoprene.
Give the monomers and uses of each of the following addition polymers:
(a) Polyethylene
(b) Polypropylene
(c) Polystyrene.
What are linear polymer and branched chain polymers? How do these differ from own linked polymers?
Write the names and structures of the monomers of the following polymers:
(i) Polystyrene (ii) Neoprene.