Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 73, Issue 3, Pages 588-594Publisher
ELSEVIER
DOI: 10.1016/j.reactfunctpolym.2013.01.002
Keywords
Polyhydroxyurethane; Isosorbide; Renewable resources; Thermal stability; Carbonate
Funding
- ANR project GreenCoat
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The synthesis of isocyanate free polyurethanes is a major concern. This paper first reports the synthesis of new biobased isosorbide dicyclocarbonates from isosorbide. Then polyhydroxyurethanes (PHUs) were synthesized by a cyclocarbonate-amine step growth polyaddition with four commercial diamines (e.g. jeffamine D-400, 1,10 diaminodecane, diethylenetriamine and isophoronediamine). These unprecedented products, obtained with high yield, were characterized by H-1 NMR, FTIR, DSC, SEC and TGA analyses. PHUs exhibited glass transition temperatures from -8 degrees C to 59 degrees C, and degradation temperatures (Td 5%) between 234 degrees C and 255 degrees C. Last but not least, the compounds produced during the degradation of these PHUs were analyzed by ATG-IR technique and showed that carbon dioxide and secondary amines are released. (C) 2013 Elsevier Ltd. All rights reserved.
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