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Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/4571

Title: Blends containing amphiphilic polymers. V. Compatibilization of N-alkylitaconamic acid-co-styrene copolymers with interacting polymers
Authors: Urzúa, M.
Sandoval, C.
González-Nilo, F.
Leiva, A.
Gargallo, L.
Radic, D.
Keywords: amphiphilic polymers; N-1-alkylitaconamic acid; co-styrene copolymer;DSC; FTIR; compatibility; hydrogen bonds; hydrophobic effect
Issue Date: 2006
Publisher: John Wiley & Sons, Inc.
Citation: Journal of Applied Polymer Science 102 (3):2512 - 2519
Abstract: The phase behavior of blends containing N-alkylitaconamic acid-co-styrene copolymers (NAIA-co-S) with poly(N-vinyl-2-pyrrolidone) (PVP) of two different weight average molecular weights ([bar M ][bar w ]), poly(2-vinylpyridine) (P2VPy) and poly(4-vinylpyridine) (P4VPy), was analyzed by differential scanning calorimetry and Fourier transform infrared spectroscopy. Copolymers containing 80% S are miscible with PVP10, PVP24, and P4VPy over the whole range of composition. In the case of blends with P2VPy, miscibility is observed only for the first three members of the series, i.e., NEIA-co-S, NPIA-co-S, and NBIA-co-S. For copolymers containing hexyl to dodecyl moieties, phase separation is observed in blends with P2VPy. Copolymers containing 50% S are miscible over the whole range of composition irrespective of the homopolymer and the length of the side chain of the itaconamic moiety of the copolymer. This behavior is interpreted in terms of steric hindrance, in the sense that the copolymers with long side chains are not able to interact with the nitrogen of P2VPy because of the position in the aromatic ring. The interactions between copolymers and homopolymers are discussed in terms of specific interactions like hydrogen bonds between the itaconamic moiety and the different functional groups of the homopolymers, together with the hydrophobic interaction, which cannot be disregarded. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 2512-2519, 2006
Description: Gonzalez-Nilo,F. Centro de Bioinformática, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile.
URI: http://dspace.utalca.cl/handle/1950/4571
ISSN: 0021-8995
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

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