Premium
Characterization by Fourier transform infrared spectroscopy of polyethylene adipate/cholesteryl palmitate blends
Author(s) -
Popescu MariaCristina,
Vasile Cornelia,
Filip Daniela,
Macocinschi Doina,
Singurel Gh.
Publication year - 2004
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.21024
Subject(s) - miscibility , materials science , fourier transform infrared spectroscopy , adipate , infrared spectroscopy , glass transition , absorbance , mass fraction , analytical chemistry (journal) , polymer chemistry , chemical engineering , chemistry , polymer , chromatography , organic chemistry , composite material , engineering
FT‐IR spectroscopy has been employed to study compatibility, melting, and crystallization of the polyethylene adipate (PEA)/cholesteryl palmitate (CP) blends. The changes in FT‐IR spectra were followed by controlled rate of heating and cooling. The bands corresponding to the crystalline structure have been assigned. The accuracy of the transition temperature determination has been improved by fitting the curve of the integral absorbance dependence on temperature with a Boltzmann function. From dependence of the transition temperatures on the composition of the blend, it has been established that for each mixing ratio a certain mass fraction of CP should be dissolved in the PEA matrix. The PEA/CP blends behave as a phase‐separated system with partial miscibility. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 94: 1156–1163, 2004