Study of the miscibility of poly(ethyl methacrylate-co-4-vinylpyridine)/poly(styrene-co-cinnamic acid) blends

• Published in: Polymer bulletin (Berlin, Germany) Vol. 42; no. 6; pp. 701 - 708
• Main Authors: BOUSLAH, N, HADDADINE, N, BENDIABDALLAH, D, AMRANI, F
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer 01.07.1999; Berlin Springer Nature B.V; New York, NY
• Subjects: Applied sciences; Binary systems; Cinnamic acid; Copolymers; Exact sciences and technology; Glass transition temperature; Miscibility; Organic polymers; Physicochemistry of polymers; Polymer blends; Polystyrene resins; Properties and characterization; Protons; Styrenes; Temperature dependence; Thermal and thermodynamic properties; Intermolecular interaction; Polymer blends; Miscibility; Ethyl methacrylate copolymer; Pyridine(4-vinyl) copolymer; Acid copolymer; Experimental study; Cinnamic derivative copolymer; Styrene copolymer
• ISSN: 0170-0839; 1436-2449
• DOI: 10.1007/s002890050522

SummaryThe miscibility of a series of poly(ethyl methacrylate-co-4-vinylpyridine) with poly(styrene-co-cinnamic acid), is investigated by differential scanning calorimetry. The results show that each blend is miscible as ascertained by a single composition dependent glass transition temperature. The Tg's of the blends exhibit positive deviations from the weight average Tg's of the blend components. The thermograms data exploited according to the Kwei and Schneider approaches suggest the occurrence of strong specific intermolecular attractive interactions within the binary systems. The strength of these interactions, as estimated from the Kwei q-values, increases with the proton donor and proton acceptor contents in the copolymers.