Question

a) Write any two differences between step-growth polymerisation and chain-growth polymerisation. 

b) What are the monomers of the following? 

i) Neoprene 

ii) Nylon-6

Answer 1

a)

Chain growth polymerisation	Step growth polymerisation
1) Molecules of the same or different monomers add together on a large scale to form a polymer.	1) There is repetitive con_ densation reaction between two bi - functional monomers with elimination of some simple molecules.
2) The monomers are usaturated Compounds like alkenes, alkadienes and their derivatives.	2) The monomers are saturated compounds with two functional groups.

b) 1) Neoprene: Neoprene (2-Chloro-1 ,3-butadiene)