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Rubber‐ L ike Materials Prepared from Copolymerization of Tannin Fatty Acid Conjugates and Vegetable Oils
Author(s) -
Luo Chunhua,
Grigsby Warren J.,
Edmonds Neil R.,
AlHakkak Jafar
Publication year - 2014
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201300039
Subject(s) - copolymer , materials science , thermogravimetric analysis , linseed oil , glass transition , tannin , natural rubber , solvent , polymer chemistry , polymer , organic chemistry , composite material , chemistry , food science
Abstract Novel bio‐based rubber‐like materials are prepared from the oxidative copolymerization of tannin oleate esters and vegetable oils. The copolymer materials are prepared as solvent‐cast films. Analysis reveals the reactivity and amount of vegetable oil employed has the greatest influence on copolymer crosslinking and mechanical properties. Copolymer film stiffness values range between 6 and 300 MPa and crosslink densities are 661–15 800 mol · m −3 . Glass transition temperature ( T g ) and Soxhlet insolubles (>80%) are relatively similar when forming copolymers with tung oil. In contrast, both T g and degree of crosslinking decrease significantly with use of linseed stand oil. Thermogravimetric analysis indicates that the copolymers are thermally stable up to 200 °C.