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Matrix‐assisted laser desorption/ionization time‐of‐flight structure determination of complex thermoset networks: Polyflavonoid tannin–furanic rigid foams
Author(s) -
Pizzi A.,
Tondi G.,
Pasch H.,
Celzard A.
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28545
Subject(s) - furfuryl alcohol , thermosetting polymer , formaldehyde , tannin , materials science , desorption , matrix (chemical analysis) , chemical engineering , polymer chemistry , organic chemistry , chemistry , composite material , adsorption , food science , engineering , catalysis
Abstract Polyflavonoid tannin–formaldehyde–furfuryl alcohol rigid foams yield hardened, rigid, tridimensional networks in which there are covalently linked structures derived from the reaction of their main components. Thus, polyflavonoid tannin structures, tannin–formaldehyde structures, furanic structures derived by the self‐condensation of furfuryl alcohol, and mixed tannin–furane and tannin–furane–formaldehyde structures are all present in the continuous foam networks. Some complex, tridimensional structures involving tannin's flavonoid units, furan nuclei, and formaldehyde‐derived methylene bridges appear to be formed too. Matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry has been used to determine the different segments contributing to forming the complex thermosetting networks of the hardened foams. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008