Magneto-optically active polythiophene derivatives bearing a stable radical group from achiral monomers by polycondensation in cholesteric liquid crystal

Polymer

Volumn 49, Issue 17, 2008, Pages 3619-3624

  Goto, Hiromasa ^a  

^a UNIVERSITY OF TSUKUBA   (Japan)

Author keywords

Circular dichroism; Conjugated polymers; Magnetism

Indexed keywords

CHIRALITY; CHOLESTERIC LIQUID CRYSTALS; CRYSTAL STRUCTURE; DICHROISM; MAGNETISM; OPTICAL KERR EFFECT;

A-STABLE; ACHIRAL MONOMERS; ASYMMETRIC POLYMERIZATION; ONE-HANDED; OPTICALLY ACTIVE; POLYTHIOPHENE DERIVATIVES; STRUCTURAL CHIRALITY; STRUCTURE OF THE POLYMERS;

CONJUGATED POLYMERS;

CONDENSATION POLYMER; LIQUID CRYSTAL; MONOMER; OPTICAL PROPERTY; ORGANIC POLYMER; POLYMERIZATION; STABILITY;

EID: 48349144167     PISSN: 00323861     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.polymer.2008.06.030     Document Type: Article

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48. The oxidized solid sample was dissolved in chloroform solution for ESR spectroscopy measurements. This procedure may allow partial disaggregation in chloroform solution.
49. Although antiferromagnetism for helical magnets is possible, we do not yet confirm it for the polymer prepared in the present study.
50. During cooling, the polymer LCs transform from mesophase to solid state while maintaining LC texture. The polymer samples show LC optical texture at room temperature after melting and gradual cooling.
51. Amphotropic LC displays both thermotropic (temperature-dependent) and lyotropic (concentration-dependent) liquid crystallinities.