question_answer 4)

Classify following as addition and condensation polymers:Terylene, bakelite, polyvinyl chloride, polythene. (i) Addition polymers are obtained from unsaturated monomers andcondensation polymers are obtained from the monomerscontaining by functional groups. (ii) Monomers of terylene, bakelite, PVC and polythene are phthalicacid + ethylene glycol, phenol + HCHO, vinyl chloride and ethene.  

Answer:

Addition polymers Condensation polymers (i) (ii) Polyvinyl chloride Polythene Terylene Bakelite