Identify the type of polymer given in the following figure.
Cross-linked or network polymer.
Identify the polymer given below.
The given polymer is formed by', 1, 4--addition of 2- methylbuta- 1,3- diene (isoprene) and stereochemistry is 'cis' throughout. Therefore, the given polymer is 'cis'- polyisoprene i.e., natural rubber.
Why are rubber called elastomers?
They change their shape on applying force and regain their original shape on removal of the applied force. Hence, rubbers are called elastomers.
Can enzyme be called a polymer?
Yes, these are made up of proteins which are polymers of amino acids.
Can nucleic acid, protein and starch be considered as step growth polymers?
Yes, nucleic acid, protein and starch can be considered as step growth polymers as during their polymerisation reaction, they lead to removal of water molecule or any neutral molecule also. Thus, these are the examples of condensation polymers or step growth polymerisation.