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Solvent Manipulation of Liquid Crystal Order and Other Properties in Azo‐Containing Surfactomesogen/Poly(styrene sulfonate) Complexes
Author(s) -
Zhang Qian,
Bazuin C. Geraldine
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200900593
Subject(s) - sulfonate , styrene , polymer chemistry , solvent , lamellar structure , polyelectrolyte , chemistry , polymer , ionomer , acetone , copolymer , organic chemistry , crystallography , sodium
Stoichiometric ionically bonded side‐chain polymer complexes of poly(styrene sulfonate) and quaternary ammonium‐functionalised azo‐containing surfactomesogens were exposed to controlled humidity atmosphere, to organic non‐solvents (acetone, THF, ethyl acetate) and to a good solvent (DMF) for the complex. This modifies or increases the packing order, and includes induction of a crystal‐like lamellar structure that is amenable to photoisotropisation. The molecular packing order influences photoinduced birefringence relaxation. Conditions for frozen‐in morphologies are discussed in the light of higher temperature data. The observed diversity of phase changes upon solvent exposure is comparable to what is observed in surfactant–polyelectrolyte complexes.