Short Answer Type
Long Answer TypeHow are low density polyethylene and high density polyethylene manufactured? Why do they differ in their densities?
Short Answer TypeWhat is vinyl polymerization? Explain it briefly.
The 
group is called vinyl group and many commercial additional polymers are formed by it, therefore the polymerization of the vinyl group is called vinyl polymerization.
In the polymerization process, the monomers are heated with a small amount of initiators or by doing the polymerization in presence of light (Photochemical).
The process can take place in three different ways:
(a) Free radical method.
(b) Anionic addition method.
(c) Cationic addition method.
Long Answer TypeWrite the equation for the synthesis of melamine polymer. Mention one important use of this polymer.
Short Answer TypeLong Answer TypeWhich polymer is used for making plastic crockery? Give its monomer, polymerization and uses.
Short Answer TypeDifferentiate between number average and weight average molecular masses of polymers.
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