TG-FTIR STUDIES ON BIODEGRADABLE POLYURETHANES CONTAINING MONOSACCHARIDE AND DISACCHARIDE COMPONENTS

Authors
NAKAMURA K NISHIMURA Y ZETTERLUND P HATAKEYAMA T HATAKEYAMA H
Citation
K. Nakamura et al., TG-FTIR STUDIES ON BIODEGRADABLE POLYURETHANES CONTAINING MONOSACCHARIDE AND DISACCHARIDE COMPONENTS, Thermochimica acta, 283, 1996, pp. 433-441
Citations number
12
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
283
Year of publication
1996
Pages
433 - 441
Database
ISI
SICI code
0040-6031(1996)283:<433:TSOBPC>2.0.ZU;2-2
Abstract
TG-FTIR measurements of polyurethanes derived from mono- and disacchar ides and their raw materials were carried out in order to investigate the thermal decomposition mechanism. It was found that polyurethanes d ecomposed in two steps; the first step of decomposition was observed a t about 300 to 450 degrees C and the second at about 450 t0 to 700 deg rees C. The first step was attributed to the breakage of pyranose ring s, aromatic rings and/or alkylene chains and the second step to the pr oduction of CO2, and H2O.