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Synthesis of a new microphase‐separated polymer system by “counterion coupling” and its X‐ray characterization
Author(s) -
Antonietti Markus,
Maskos Michael
Publication year - 1995
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1995.030161009
Subject(s) - mesophase , polyelectrolyte , lamellar structure , counterion , materials science , polymer , ionic bonding , ethylene oxide , polymer chemistry , copolymer , aqueous solution , chemical engineering , small angle x ray scattering , scattering , liquid crystal , chemistry , ion , composite material , organic chemistry , optics , physics , optoelectronics , engineering
A new type of highly ordered, microphase‐separated polymer material is synthesized by simple ionic coupling of a commercial styrene/ethylene oxide twoblock copolymer with a charged end group to an oppositely charged polyelectrolyte by common precipitation from aqueous solution. The characterization of the polymer/polymer complex by small‐angle X‐ray scattering and polarization microscopy reveals that the comb‐like addition complexes formed by ionic grafting build up a mesophase with lamellar morphology and a periodicity of d = 7.1 nm which is easily oriented in mechanic fields.