<br/>Vegetable oil is fascinating bio-based resource that is used for myriads of chemical and specialty products including coatings and is at the center of my research. Bio-based chemicals have a very long history of being used in adhesive, sealant and coatings industry due to their versatility and nontoxic properties. Promoting bio-based chemicals in terms of design, formulation and synthesis are the key elements of this research.<br/><br/>The research focuses on synthesis and characterization of polyester acrylate oligomers derived from epoxy resin (ER), itaconic acid (IA) (bio-based material), and glycdylmetharylate (GMA). This novel polyester acrylate is then be blended with Acrylated epoxidized soybean oil (AESO) in varying proportions. This polymer blend containing both hard and soft materials, and containing both acrylate and hydroxyl groups has been used to formulate dual-cure coating systems. Dual-cure systems –that will cure by both radical polymerization (acrylate) and step-growth polymerization (-OH + -NCO) mechanism have been formulated by addition of varying amount of aliphatic polyisocyanate crosslinker. The wet films of the coatings were applied and cured under different conditions - only by thermal cure (step-growth), only by UV-cure and dual-cure. Cure study has been done using FT-IR spectroscopy ( Peak area ratio method) to study the effect of cure type on properties of coatings. The differential scanning calorimetric technique (DSC) is used to investigate their mechanical properties as a function of cure type. Effect of composition and cure type on various film properties such as adhesion, flexibility, pencil and pendulum hardness, and impact resistance, and solvent resistance has been studied.

Promising approach to developing eco-friendly, sustainable and dual-cure coatings

253rd National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.