Mesogenic structures and charge-transfer reactions in poly(ethylene oxide) complexes
1988; Wiley; Volume: 20; Issue: 3 Linguagem: Inglês
10.1002/pi.4980200322
ISSN1934-256X
AutoresBushra Mussarat, Kevin Conheeney, Jamil Siddiqui, Peter V. Wright,
Tópico(s)Advancements in Battery Materials
ResumoAbstract After discussion of a schematic model for the crystalline phases of some poly(ethylene oxide) (PEO)‐Na + complexes with organic anions, three types of material are discussed. (i) Complexes of sodium salts of organic acids substituted by hydrophobic groups are deposited from methanol as macrodomains of uniaxially oriented material; these rearrange to microdomain morphologies on heating above ca . 60°C. Similar anions substituted by polar groups form spherulitic complexes or they rearrange thermotropically to microdomain structures. (ii) The preparation of polythiocyanogen by a ‘canal’ polymerisation within a PEO‐NaSCN lattice is described and its extraction to give a material of conductivity ca. 10 −1 S cm −1 after doping is discussed, (iii) Charge‐transfer reactions with PEO‐NaI and tetracyano‐quinodimethan (TCNQ) to give films having conductivities of 10 −3 ‐10Ω −1 cm −1 are also described.
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