A natural linear polymer of 2-methyl-1, 3-butadiene becomes hard on treatment with sulphur between 373 to 415 K and -S-S-bonds are formed between chains. Write the structure of the product of this treatment?
The product is called vulcanised rubber. Its structure is
Identify the type of polymer
$\mathrm{-A-A-A-A-A-A-}$
Homopolymer as it contains only one type of monomer units. i.e., only A monomer units.
Identify the type of polymer $$ -\mathrm{A}-\mathrm{B}-\mathrm{B}-\mathrm{A}-\mathrm{A}-\mathrm{A}-\mathrm{B}-\mathrm{A}- $$
Copolymer, as it contains more than one type of monomer units. Here, $A$ and $B$ are two types of monomer units.
Out of chain growth polymerisation and step growth polymerisation, in which type will you place the following.
Chain growth polymerisation, as there is no loss of small molecules like water; methanol etc.
Identify the type of polymer given in the following figure.
Cross-linked or network polymer.
