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Hydrogen Bonding Complexes of Poly(styrene ‐co ‐2‐hydroxyethyl acrylate) and Poly (styrene‐ co ‐4‐vinylpyridine)
Author(s) -
Bouzouia Fatiha,
Djadoun Said
Publication year - 2008
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200851307
Subject(s) - copolymer , styrene , hydrogen bond , polymer chemistry , materials science , acrylate , glass transition , pyridine , fourier transform infrared spectroscopy , thermal stability , solvent , polymer , chemical engineering , chemistry , molecule , organic chemistry , composite material , engineering
Summary: Random copolymers of poly(styrene‐ co ‐4‐vinylpyridine) (S4VP) and poly (styrene‐ co ‐2‐hydroxyethyl acrylate) (SHEA) of different compositions were prepared and characterized. An investigation of the effects of solvent and densities of the interacting species incorporated within these copolymers showed that novel and various hydrogen bonding interpolymer complexes of different structures were elaborated when these copolymers are mixed together. The specific interactions that occurred within the SHEA copolymers and the elaborated complexes were evidenced by FTIR qualitatively from the appearance of a new band at 1604 cm −1 and quantitatively using appropriate spectral curve fitting in the carbonyl and pyridine regions. The intermolecular hydrogen bonding interactions that occurred between the hydroxyl groups of the SHEA and the nitrogen atom of the pyridine groups in the S4VP are stronger than the self‐associations within the SHEA. In the solid state, a DSC analysis showed that the variation of the glass transition temperatures of these materials with the composition behaved differently with the densities of interacting species and were analyzed quantitatively. A thermal stability study of the synthesized copolymers and of their different mixtures carried by thermogravimetry confirmed a similar behaviour.