High performance polyurethane dispersion synthesized from plant oil renewable resources: A challenge in the green materials. (April 2018)

• Record Type: Journal Article
• Authors: Gurunathan, T.; Arukula, Ravi
• Is Part Of: Polymer degradation and stability. Volume 150(2018)
• Page Start: 122
• Page End: 132
• Publication Date: 2018-04
• Subjects: Bio–based polyurethane -- Castor oil -- Hyperbranched -- Mechanical properties -- Eco-friendly; Polymers -- Deterioration -- Periodicals; Stabilizing agents -- Periodicals; Polymères -- Dégradation -- Périodiques; Stabilisants -- Périodiques; 668.9
• DOI: 10.1016/j.polymdegradstab.2018.02.014
• Languages: English
• ISSNs: 0141-3910

Abstract

Abstract: A series of hyperbranched polyesters were incorporated by the chemical reaction of the dimethylolpropionic acid with trimethylolpropane, pentaerythritol, and glycerol as the core group. The castor oil-based fatty acids were also successfully prepared in order to examine the impact of the biopolyols on the thermo-mechanical characteristics of the hyperbranched waterborne polyurethane. The chemical structure of the polyols and the resulting polymer were characterized. Developing −OH functionality of the polyols the polyurethanes represented an improvement in crosslinking density, leading to increasing T g, tensile modulus, and tensile strength and a decrease in elongation and toughness. Thus, the overall results forward the synthesized HBWPU as a potent sustainable and eco-friendly polymeric material by a simple approach that possesses a higher degree of sustainability over a purely petrochemical route. Graphical abstract: Highlights: Using castor oil fatty acid (COFA) as a green alternative to dimethylolpropionic acid. Synthesis of COFA-based polyurethane dispersions with different hyperbranched polyols. Detailed thermal and mechanical behavior of HBWPU were investigated.