Explain with suitable examples:
(i) Natural polymers
(ii) Synthetic polymers.
(i) Natural polymers: Polymers found in nature, mostly from plants and animals, are called natural polymers. Examples are starch, cellulose, proteins, nucleic acids and natural rubber.
(ii) Synthetic polymers: Polymers synthesised by human in laboratory or factory are called synthetic polymers. Examples are polypropylene, nylon-66, polybutadiene, polyvinyl chloride (PVC), phenol formaldehyde (Bakelite), polyester (Terylene).
What are linear polymer and branched chain polymers? How do these differ from own linked polymers?
Write the names and molecular structure of the monomers of the following:
(i) Natural rubber (ii) Neoprene.
Write the names and structures of the monomers of the following polymers:
(i) Polystyrene (ii) Neoprene.
Define a polymer. Write the monomer used for the preparation of dacron. Mention a use of it.
Give the monomers and uses of each of the following addition polymers:
(a) Polyethylene
(b) Polypropylene
(c) Polystyrene.