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Dielectric Relaxation of Side‐Chain Liquid Crystalline Ionomers Containing Alkaline Metal Ions
Author(s) -
Nikonorova Natalia A.,
Barmatov Evgeny B.,
Pebalk Dimitry A.,
DiazCalleja Ricardo,
Kremer Friedrich
Publication year - 2005
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.200500164
Subject(s) - rubidium , lithium (medication) , ion , alkali metal , ionomer , polymer chemistry , dielectric , side chain , acrylate , copolymer , benzoic acid , metal ions in aqueous solution , materials science , inorganic chemistry , chemistry , potassium , polymer , organic chemistry , medicine , optoelectronics , endocrinology
Summary: Two sets of side‐chain, liquid‐crystalline ionomers based on copolymers of butyl acrylate and 4‐{[6‐(acryloyloxy)hexyl]oxy}benzoic acid containing 2.5–20 mol‐% of lithium or rubidium ions were studied. As the content of ions of alkali metals increases, segmental mobility markedly decreases. As compared with rubidium‐containing ionomers, ionomers containing lithium ions are characterized by a far more efficient decrease in their dielectric relaxation times because ionic radius of lithium ions is lower than that of rubidium ions.