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Structure–property relationships of a bio‐based reactive diluent in a bio‐based epoxy resin
Author(s) -
Maiorana Anthony,
Yue Liang,
ManasZloczower Ica,
Gross Richard
Publication year - 2016
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.43635
Subject(s) - epoxy , diglycidyl ether , diluent , glass transition , materials science , isophorone , thermal stability , isophorone diisocyanate , eugenol , reactive extrusion , diamine , composite material , ether , nuclear chemistry , polymer chemistry , chemistry , polymer , bisphenol a , organic chemistry , polyurethane
ABSTRACT The monofunctional glycidyl ether of eugenol (GE) was used as a reactive diluent for the diglycidyl ether of diphenolate n‐ pentyl ester (DGEDP‐Pe). Viscosities of GE and DGEDP‐Pe are 25 mPa s and 11 Pa s, respectively. Compositions GE/DGEDP‐Pe epoxy resins with 5, 10, 15, 20, and 30 wt % GE were analyzed for viscosity reductions and, subsequently, cured with isophorone diamine. The glassy modulus of cured GE/DGEDP‐Pe epoxy resins remained between 2000 and 3000 MPa. The glass transition temperature decreased linearly, from 92 °C for neat DGEDP‐Pe, with progressively higher loadings of GE to 53 °C at the highest GE loading of 30 wt %. The thermal stability decreased as GE loading increased with a maximum of 30 °C loss in the onset of degradation at 5 wt % mass loss. The role of GE as a reactive diluent is discussed and a range of loadings was determined to be suitable for a vacuum infusion epoxy resin system. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43635.