ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The conductivity of 7,7,8,8-tetracyanoquinodimethane (TCNQ) salts of biscations and polycations was investigated in dependence of the cation structures. The biscations, which were considered to be a model unit of polycations, were prepared by the Menshutkin reaction of aromatic amines, such as pyridine and quinoline, with α,ω-dibromoalkanes. The polycations were synthesized by polymerizing bifunctional biscations bearing two amino groups with diisocyanates. The conductivity of the biscation-TCNQ complex salts was mainly influenced by the interval between N+ atoms and the polarizability of the biscations. Biscations which had an optimum interval between N+ atoms and high polarizability were effective to obtain high conductive TCNQ salts. The TCNQ complex salts of polycations containing such biscation parts showed similar conductivity as the corresponding biscation-TCNQ complex salts. It is suggested that the TCNQ molecules, under the influence of the biscation parts, dominated the conductivity of the polycation-TCNQ complex salts.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1981.021821013
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