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Curing of phenolic resins modified with chestnut tannin extract
Author(s) -
Peña C.,
Martin M. D.,
Tejado A.,
Labidi J.,
Echeverria J. M.,
Mondragon I.
Publication year - 2006
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.23769
Subject(s) - hexamethylenetetramine , tannin , curing (chemistry) , phenol , adhesive , materials science , catechol , chemistry , chemical modification , rheology , polymer chemistry , composite material , organic chemistry , food science , layer (electronics)
Phenolic novolac resins have been modified with chestnut tannin for reduction of phenol content in resins. In this work, rheological and kinetic analysis of curing reactions of these resins with hexamethylenetetramine (hexamine) has been performed. Chemical structure of obtained materials has been analyzed and compared with that of nonmodified resins. Results reveal that cure reactions of resin modified with chestnut tannin are different when compared with nonmodified novolacs not only in the cure kinetics values but also in final chemical structure. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 2034–2039, 2006

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