PHASE MISCIBILITY IN OIL RESIN MIXTURES - A STUDY BY FTIR AND THERMOMECHANICAL ANALYSIS/

Citation
O. Pages et al., PHASE MISCIBILITY IN OIL RESIN MIXTURES - A STUDY BY FTIR AND THERMOMECHANICAL ANALYSIS/, Thermochimica acta, 287(1), 1996, pp. 53-70
Citations number
11
Categorie Soggetti
Chemistry Analytical
Journal title
ISSN journal
00406031
Volume
287
Issue
1
Year of publication
1996
Pages
53 - 70
Database
ISI
SICI code
0040-6031(1996)287:1<53:PMIORM>2.0.ZU;2-E
Abstract
Quantitative infrared analysis in the carbonyl region with a simple cu rve-fitting procedure and thermomechanical measurements were used to a nalyse critical behaviours in naturally aged oil/resin mixtures coveri ng a wide range of composition, The results are discussed on the basis of a comparative study performed with fresh mixtures of the same comp osition, used as standards, and a phase miscibility analysis. Thermome chanical measurements give macroscopic evidence for phase segregation in naturally aged mixtures with a resin component content strictly bel ow 50%, while above this threshold the basic components are totally in volved in the formation of a stable mixed oil/resin phase. At the mole cular scale, infrared measurements appear to be sensitive to the subse quent oil/resin interaction in aged mixtures which appears to develop at the first stage of the mixing.