Development Of Biodegradable Polyetheramide-Urethanes From Castor Seed Oil

摘要

Castor seed oil (Ricinuscommunis) is a vital renewable base material for industrial production ofudlubricants, brake fluids, soaps, inks, pharmaceuticals, pla stics, perfumes etc. The presence ofudreachricinoleic acid (about 87.5%) content in its fatty acids profile confers on its essential use forudcoating purposes. This paper presents the synthesis, characterization and antibacterial evaluations ofudpolyetheramide-urethanes (PETAU) prepared from Ricinuscommunis seed oil. N,N'-bis (2-udhydroxyethyl) Ricinuscommunis fatty amide (HERA) was synthesized via aminolysis. Upon reactingudHERA with bisphenoiA, polyetheramide (PETA) resin was form ed. The polyetheramide subsequentlyudundergo urethanation to form PETAU. The synthesized PETAU was characterized by FT-IR, 'H-NMR andud13C-NMR spectroscopic analyses. Selected physico-chemical parameters of seed oil, HERA, PETA, PET AUudwere measured. Coating performance, thermal stability and antimicrobia l properties ofthe cured resinudwere also evaluated.