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A supramolecular structured complex of poly(acrylic acid) and polystyrene‐ block ‐poly(vinylbenzyltrimethylammonium chloride)
Author(s) -
Thünemann Andreas F,
Wendler Ulrich,
Jaeger Werner
Publication year - 2000
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/1097-0126(200007)49:7<782::aid-pi447>3.0.co;2-g
Subject(s) - mesophase , acrylic acid , materials science , polystyrene , small angle x ray scattering , supramolecular chemistry , ionic bonding , polymer chemistry , ionic radius , copolymer , chemical engineering , scattering , composite material , crystallography , polymer , ion , crystal structure , chemistry , optics , organic chemistry , liquid crystal , physics , optoelectronics , engineering
Complexation of poly(acrylic acid) (PAA) by polystyrene‐ block ‐poly(vinylbenzyltrimethylammonium chloride) (PS‐ b ‐VB) results in a mesomorphously ordered material with a glass transition temperature of 71 °C. The complex is assumed to consist of hexagonally‐ordered ion‐rich cylindrical rods containing the PAA embedded in a polystyrene matrix. It has been shown by small‐angle X‐ray scattering (SAXS) analysis that the mesophase is characterized by sharp phase boundaries between ionic and non‐ionic regions. The structure parameters are evaluated by using a two‐dimensional interface distribution function resulting in an average cylinder radius in the range 3.0–3.5 nm and a lattice constant of 14 nm. The radius distribution is calculated to be relatively broad, which is found to be consistant with sharp phase boundaries. PS‐ b ‐VB‐PAA represents an example of a new type of polymeric hybrid material with a supramolecular ordered ionic–non‐ionic nanostructure. © 2000 Society of Chemical Industry