Stability constants and thermodynamic parameters of some intermacromolecular complexes in relation to their specific interaction forces

SummaryIntermacromolecular complexes of poly (acrylic acid) (PAA) with poly (ethylene oxide) (PEO), poly (ethylene imine) (PEI) and poly (vinyl pyrrolidon) (PVP) were prepared. The stability constants and thermodynamic parameters (e.g. ΔH0 and ΔS0) of these complexes were determined at several tempe...

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Veröffentlicht in:	Polymer bulletin (Berlin, Germany) Germany), 2005-12, Vol.55 (6), p.437-445
Hauptverfasser:	VASHEGHANI F, B, RAJABI, F. H, AHMADI, M. H, NOUHI, S
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Enthalpy Ethylene oxide Exact sciences and technology Organic polymers Parameters Physicochemistry of polymers Polyacrylic acid Polyethyleneimine Properties and characterization Stability Stability constants Thermal and thermodynamic properties Thermodynamics
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Zusammenfassung:	SummaryIntermacromolecular complexes of poly (acrylic acid) (PAA) with poly (ethylene oxide) (PEO), poly (ethylene imine) (PEI) and poly (vinyl pyrrolidon) (PVP) were prepared. The stability constants and thermodynamic parameters (e.g. ΔH0 and ΔS0) of these complexes were determined at several temperatures. The enthalpy and entropy changes of the systems with temperature have been interpreted in terms of various mode of interaction between the components and compared with each other.
ISSN:	0170-0839 1436-2449
DOI:	10.1007/s00289-005-0447-5