some polymerization reactions are reversible. There is interest in reverse polymerization from Green chemistry angle. Also recently, it was proved by a Mumbai scientist, the a protein that form oligomers can be converted back into monomers by creating situation suitable for reverse polymerization. So concepts one learns in XI or XII class have applications in very important issues related human life.
Look at this small abstract
http://leishman.conference-services.net/resources/266/2152/pdf/32APS_0272.pdf
