Phase equilibria of poly(ɛ-caprolactone)-co-poly(acryl methacrylate)-methylene chloride systems and the phase structure of polymer binary mixtures

Isothermal cross sections of amorphous separation diagrams of the ternary systems poly(ɛ-caprolactone)- co -poly(acryl methacrylate) Eudragite RS-methylene chloride and poly(ɛ-caprolactone)- co -poly(acryl methacrylate) Eudragite E-methylene chloride are obtained via the experimental methods of turb...

Full description

Saved in:
Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2012-04, Vol.54 (4), p.282-289
Main Authors: Chalykh, A. E., Gerasimov, V. K., Mironov, A. V., Kuptsov, S. A., Kil’deeva, N. R.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chlorides
Crystallites
Evaporation
Mathematical analysis
Phase diagrams
Phase separation
Polymer Mixtures
Polymer Sciences
Solvents
Ternary systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Isothermal cross sections of amorphous separation diagrams of the ternary systems poly(ɛ-caprolactone)- co -poly(acryl methacrylate) Eudragite RS-methylene chloride and poly(ɛ-caprolactone)- co -poly(acryl methacrylate) Eudragite E-methylene chloride are obtained via the experimental methods of turbidity points and analytical transmission electron microscopy and the calculation semi-empirical method of constructing boundary lines of phase diagrams. It is shown that the composition of copoly(acryl methacrylate) affects the length of the solubility region in the ternary phase diagram and the character of the anisotropy of films prepared via solvent evaporation. The determination of coordinates of figurative points corresponding to the completion of phase separation shows that the mechanism of phase separation for both systems is of the spinodal type. The specific orientation of polycaprolactone crystallites during film preparation from the poly(ɛ-caprolactone)-Eudragite RS mixture is determined by the morphology of the film formed during solvent evaporation and the phase composition.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X12040025