Synthesis and characterisation of novel rod-disc oligomers

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3688

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DC Field	Value	Language
dc.contributor.author	Pal, Santanu Kumar	-
dc.contributor.author	Kumar, Sandeep	-
dc.contributor.author	Seth, Jhumur	-
dc.date.accessioned	2008-12-19T10:21:14Z	-
dc.date.available	2008-12-19T10:21:14Z	-
dc.date.issued	2008-05	-
dc.identifier.citation	Liquid Crystals, 2008, Vol.35, p521	en
dc.identifier.issn	E-ISSN: 1366-5855	-
dc.identifier.issn	P-ISSN: 0267-8292	-
dc.identifier.uri	http://hdl.handle.net/2289/3688	-
dc.description	Restricted Access.	en
dc.description.abstract	Microwave-promoted synthesis of novel rufigallol-based liquid crystalline oligomers, containing six rod-like cyanobiphenyl moieties connected to the rufigallol core via flexible alkyl spacers, is reported. The synthesis of the target compounds was challenging since classical reactions failed to produce these oligomers. Differential scanning calorimetry and polarising optical microscopy analysis revealed the existence of a nematic phase with a shorter spacer and a smectic A (SmA) phase with a longer spacer. The compound with medium alkyl spacer exhibits both nematic and SmA phases at higher temperature and a re-entrant nematic phase at lower temperature.	en
dc.language.iso	en	en
dc.publisher	Taylor & Francis	en
dc.relation.uri	http://dx.doi.org/10.1080/02678290802051072	en
dc.rights	2008 Taylor & Francis	en
dc.subject	rod-disc oligomer	en
dc.subject	rufigallol-based oligomer	en
dc.subject	biaxial nematic	en
dc.title	Synthesis and characterisation of novel rod-disc oligomers	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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