Recently, biobased polymers have received great interest due to their ecofriendly properties towards environment. As a substitute to the use of conventional reinforcing synthetic resins, biobased resins were synthesized from renewable resource cardanol, the meta- substituted phenolic compound isolated from Cashew nut shell liquid (CNSL), a byproduct of cashew industry.P-Chloroaniline has been diazotised and coupled with cardanol to prepare diazotised p- Chloroaniline cardanol dye (bio monomer). It was characterised by FT-IR, and 1H-NMR studies. The obtained dye has been condensed with formaldehyde in presence of 3N.H2SO4 to give diazotized p- ChloroAniline cardanol formaldehyde (homo polymer) resin. TLC and physicochemical properties of cardanol and homopolymer resins were studied. The condensed product has been allowed to react with organic compounds such as 4-hydroxy benzoic acid and ethylene glycol to form copolymer resins. The resins were characterized by FT-IR 1H-NMR and XRD studies. XRD data indicated the percentage of crystallinity of the resins.
