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Nematic ionomers as materials for the build‐up of multilayers
Author(s) -
Paßmann Matthias,
Wilbert Götz,
Cochin Didier,
Zentel Rudolf
Publication year - 1998
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/(sici)1521-3935(19980201)199:2<179::aid-macp179>3.0.co;2-u
Subject(s) - polyester , materials science , ionic bonding , polymer , polyelectrolyte , ionic liquid , amorphous solid , surface modification , ionomer , polymer chemistry , liquid crystal , chemical engineering , spectroscopy , solvent , copolymer , organic chemistry , chemistry , composite material , ion , catalysis , physics , optoelectronics , quantum mechanics , engineering
This paper describes the synthetic route to semiflexible polyesters exhibiting the phases glassy, nematic, isotropic, as well as their functionalization with ionic groups. As ionic groups the salts of sulfonic acids and phosphonic acids were used. These ionic LC‐polymers (mostly ionomers) can be used for a multilayer build‐up with amorphous polyelectrolytes. The multilayer build‐up can be followed by UV spectroscopy, X‐ray reflectivity and surface plasmon spectroscopy. The thickness of the sublayers is in the range of 25 to 55 Å, and also depends on the polarity of the solvent and on such details as drying or not during the dipping cycle.