Fri December 07, 2012 By: Sheethal S J

How can Buna-S be classified under condensation polymer ? It does not involve any elimination, no ?

Expert Reply
Sat December 08, 2012
It is a condensation polymer, as no by-products are formed in the reaction. Formation of Buna-S is addition polymerization.
In Buna-S, Bu stands for butadiene and, Na for sodium and S for styrene. It is vulcanised with sulfur.
Home Work Help