Liquid crystalline organization

POSITRON SPECTROSCOPY OF LIQUID CRYSTALLINE ORGANIC MATERIALS CONTAINING C60 FULLERENES... 

The association and the generation of supermolecular liquid crystalline organizations of polymers in solution strongly depend on the molecular architecture of the macromolecules. From low molar mass liquid crystals it is well known that only particular molecular architectures cause the liquid crystalline state the... 

M., Sparrowe, D. and Tierney, S., Polymerizable liquid crystalline organic semiconductors and their fabrication in organic field effect transistors, J. Am. Chem. Soc., 13, 2436-2444, 2003. 

Pegoretti A, Traina M. Liquid crystalline organic fibres and their mechanical behaviour. In Bunsell AR, editor. Handbook of tensile properties of textile and technical fibres, vol. 12. Cambridge Woodhead 2009. pp. 354—436. 

The redox properties of the ferrocene unit were also used to control the liquid-crystalline organization of side-chain liquid-crystalline poly(methacrylates) the reduced polymer gave rise to smectic C and smectic A phases whereas the oxidized polymer showed a nematic phase. ... 

The birefringence of the CW suspensions is attributed to their characteristic liquid crystalline organization in suspension, and proves that whiskers have been successfully refined from the MCC precursor. The dispersion of CW is also evident from the gallery of TEM and AFM images in Figures 6.9-6.13. Figures 6.9-6.10... 

While one would expect that this approach could be extended to many other material combinations, the rules are not understood. Efforts to form similar stmctures other than oxides, such as titania, or various crystalline materials, have been only partly successful. Possibly, any rapid or localized conversion process also disrupts the liquid crystalline organization. Stupp and co-workers (2000) have produced a range of amphiphiles that assemble into various ribbon and wedge structures, and the authors have explored their catalytic activity. 

Puzari A (2012) Chapter 4 liquid crystalline dendrimer towards intelligent functional materials. In Iwan A, Schab-Balcerzak E (eds) Liquid crystalline organic compounds and polymers as materials XXI century from synthesis to application. Transworld Research Network, Trivandrum, pp 95-124... 

This paper is primarily concerned with polymers displaying thermotropic mesomorphism. The moieties which generate the liquid crystalline organization are called the mesogenic moieties and can be found either in the main chain or in the side groups. The structural characteristics associated with liquid crystalline behavior have been reviewed by Gray (6, 7) and will not be dis-... 

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