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Renewable benzoxazine monomer from Vanillin: Synthesis,characterization, and studies on curing behavior
Authors:N. K. Sini  Jayashree Bijwe  Indra K. Varma
Affiliation:1. Industrial Tribology Machine Dynamics and Maintenance Engineering Centre, Indian Institute of Technology Delhi, , New Delhi, 110 016 India;2. Centre for Polymer Science and Engineering, Indian Institute of Technology Delhi, , New Delhi, 110 016 India
Abstract:A novel renewable based benzoxazine, 3‐(furan‐2‐ylmethyl)?8‐methoxy‐3,4‐dihydro‐2H‐1,3‐benzoxazine‐6‐formyl (Va‐Bz), has been synthesized from a lignin derived chemical “vanillin” without solvents. Poly (Va‐Bz) has high Tg and excellent thermal and adhesive properties. A mechanism of cross‐linking, due to electrophilic substitution at furan and decarboxylation of carboxylic group of benzene ring, is suggested. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52, 7–11
Keywords:adhesives  polybenzoxazines  renewable resources  thermal properties
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