An efficient approach for the synthesis of thermoset polyurethane acrylate polymer and its film properties

Abstract

The new allyl((2-oxo-1,3-dioxolan-4-yl)methyl) carbonate (ADC) monomer was synthesized by reacting glycerol carbonate with allylchloroformate. The structure of the monomer was characterized by FT-IR, 1H NMR, UV–visible, and mass spectroscopies. The ADC monomer was copolymerized with Methyl methacrylate and butyl Acrylate by solution polymerization technique. Further, the ADC copolymer was cross-linked with 1,3-diaminopropane which yields polyurethane acrylate copolymer. The cured film was characterized by FT-IR, 1H NMR spectroscopy and for the Gel content. The uncured and cured films were subjected to thermal analysis, and it was observed that the uncured film undergoes two-step thermal decomposition, whereas the cured film undergoes single-step thermal decomposition with comparably high thermal stability. The biodegradability of uncured films is directly proportional to the conc. of ADC monomer and inversely proportional to its cured film. The cured and uncured films of ADC copolymers were subjected to evaluate their optical and mechanical properties. The dramatic improvement was observed in the optical and mechanical properties of cured ADC copolymer at 5–7 wt.% of ADC monomer.