01727nas a2200181   4500008004100000022001400041245008800055210006900143260008400212300001400296490000700310520100500317100002901322700003101351700002401382700001801406856012101424       2007                        eng d  a0009-267300aCholesterol-linked beta-cyclodextrin - a thermotropic liquid-crystalline derivative0 aCholesterollinked betacyclodextrin a thermotropic liquidcrystall  a1-5 KANDA-SURUGADAI CHIYODA-KU, TOKYO, 101-8307, JAPANbCHEMICAL SOC JAPANcOCT  a1975-19800 v803 a<p>Liquid-crystalline derivative of ss-cyclodextrin (BCD) was prepared by covalent linking of monocholesteryl succinate (ChMS) with ss-cyclodextrin. To the best of our knowledge, this was first ever attempt so far of its kind, in which BCD has been converted into its liquid-crystalline derivative through covalent linkage of a mesogen. The degree of substitution (DS) obtained was approximate to 2.00. The product was characterized by various techniques, such as FT-IR, NMR, DSC, hot-stage-coupled optical polarizing microscopy (OPM), microanalysis and chemical methods. Cholesterol-linked ss-cyclodextrin (CDCh) derivative was found to exhibit thermotropic liquid-crystalline behavior. The product exhibited birefringence during first heating above 130 degrees C, and it became isotropic at about 180 degrees C, whereas the parent compound BCD decomposed without melting above 250 degrees C. A comparison of CDCh derivative to similar liquid-crystalline polysaccharide derivatives is presented.</p>1 aShaikh, Vasi, Ahmed Ebra1 aLonikar, Shrikant, Vitthal1 aDhoble, Deepa, Arun1 aPawar, G., M.  uhttps://library.ncl.res.in/content/cholesterol-linked-beta-cyclodextrin-thermotropic-liquid-crystalline-derivative-0