Biobased self healing waterborne polyurethane with vanillin derived dynamic Imine bonds for enhanced mechanical strength and performance.

ABSTRACT: Rising global interest in environmentally friendly, high-performance polymeric materials has accelerated the innovation of next-generation polyurethane systems. This research introduces a novel bio-based waterborne polyurethane, synthesized with a vanillin-derived green polyol chain extender featuring dynamic imine linkages. Vanillin diol (VAN-OH) was synthesized using a straightforward one-step condensation of vanillin and ethylenediamine, incorporating dynamic Schiff base functionality into the compound. The waterborne polyurethane (WPU) formulation was synthesized by combining the chain extender VAN-OH, dimethylolpropionic acid (DMPA), polytetrahydrofuran (PTHF), and isophorone diisocyanate (IPDI) in the proper molar ratios. The synthesis parameters were improved through a Design of Exp

SUBMITTER: Banan AR 

PROVIDER: S-EPMC12475146 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature