Phase Stability of Hydrogen-Bonded Polymer Mixtures. II. Mixtures of Intercomplexing Polymers

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Title:Phase Stability of Hydrogen-Bonded Polymer Mixtures. II. Mixtures of Intercomplexing Polymers
Creators:
Pouchlý, Julius
Živný, Antonín
Sikora, Antonín
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 64, 1, pp. 13-30
Uncontrolled Keywords:Phase stability, Quasichemical equilibrium theory, Polymer mixtures, Intercomplexing polymers, Hydrogen bonds

Abstract

Equations for the second derivative of the Gibbs energy of mixing with respect to composition were derived on the basis of the Barker-Guggenheim theory of quasichemical equilibrium for mixtures of two polymers containing polar groups and a nonpolar rest. Using equations derived, conditions for the phase separation in mixtures of two strongly intercomplexing polymer components were evaluated. The phase instability appears when the components differ in their polar group contents (strictly speaking, in their surface fractions in respective macromolecules), or due to an unfavorable interaction between nonpolar groups of the components. The effect is conditioned by small affinity of polar to nonpolar groups and may be influenced by the difference in this affinity between both components; nevertheless, the latter factors are not sufficient for a phase instability to occur. <p>

Title:Phase Stability of Hydrogen-Bonded Polymer Mixtures. II. Mixtures of Intercomplexing Polymers
Creators:
Pouchlý, Julius
Živný, Antonín
Sikora, Antonín
Uncontrolled Keywords:Phase stability, Quasichemical equilibrium theory, Polymer mixtures, Intercomplexing polymers, Hydrogen bonds
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:64
Number:1
Page Range:pp. 13-30
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19990013UNSPECIFIED
ID Code:1453
Item Type:Article
Deposited On:06 Feb 2009 17:09
Last Modified:06 Feb 2009 16:09

Citation

Pouchlý, Julius; Živný, Antonín; Sikora, Antonín (1999) Phase Stability of Hydrogen-Bonded Polymer Mixtures. II. Mixtures of Intercomplexing Polymers. Collection of Czechoslovak Chemical Communications, 64 (1). pp. 13-30. ISSN 0010-0765

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