Renewable benzoxazine monomers from “lignin??like” naturally occurring phenolic derivatives
M Comí, G Lligadas, JC Ronda…
Index: Comi, Marc; Lligadas, Gerard; Ronda, Juan C.; Galia, Marina; Cadiz, Virginia Journal of Polymer Science, Part A: Polymer Chemistry, 2013 , vol. 51, # 22 p. 4894 - 4903
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Citation Number: 24
Abstract
ABSTRACT The benzoxazines of three naturally occurring phenylpropanoid phenols: ferulic, coumaric, and phloretic acids, and their esters are described. Benzoxazines with conjugated unsaturated chains exhibit unusual poor thermal stability and degrade partially at the polymerization temperature making necessary the use of a catalyst (BF 3. Et 2 O) to low the polymerization temperature and prevent degradation. Polybenzoxazines are prepared ...
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