What are polymers?

Which of the following polymers soften on heating and harden on cooling? What are the polymers with this property collectively called? What are the structural similarities between such polymers? Bakelite, urea-formaldehyde resin, polythene, polyvinyl, polystyrene.

Answer the following What do you mean by biodegradale and non-biodegradable polymers? Give an example of a synthetic biodegradable polymer.

What do you mean by biodegradale and non biodegradable polymers ? Give an example of a synthetic biodegradable polymer.

What is biodegradable polymer ? Give an example.

Based on molecular forces, what type of polymer is neoprene?