Which of the folloiwng are characteristics of thermosetting polymers?(

1.	Which of the folloiwng are characteristics of thermosetting polymers?(i) Heavily branched cross linked polymers.(ii) Linear slightly branched long chain molecules.(iii) Become infusible on moulding so cannot be reused.(iv) Soften on heating and harden on cooling, can be reused.
Answer» (i), (iii) (i) Heavily branched cross linked polymers. (iii) Become infusible on moulding so cannot be reused.

Which of the folloiwng are characteristics of thermosetting polymers?(i) Heavily branched cross linked polymers.(ii) Linear slightly branched long chain molecules.(iii) Become infusible on moulding so cannot be reused.(iv) Soften on heating and harden on cooling, can be reused.

Answer»

(i), (iii)

(i) Heavily branched cross linked polymers.

(iii) Become infusible on moulding so cannot be reused.