@article { ISI:000236150300039,
	title = {Thermotropic behavior of lithocholic acid derivative linked hydroxyethyl cellulose},
	journal = {Journal of Applied Polymer Science},
	volume = {100},
	number = {3},
	year = {2006},
	month = {MAY},
	pages = {1995-2001},
	publisher = {JOHN WILEY \& SONS INC},
	type = {Article},
	address = {111 RIVER ST, HOBOKEN, NJ 07030 USA},
	abstract = {<p>Various mesogenic lithocholic acid (LA) derivatives [3-acetyl LA (LAAC); 3-propionyl LA (LAP), 3-cinnamoyl LA (LACin); 3-benzoyl LA (LAB), 3-(4-nitrobenzoyl) LA (LANB); and methyl-3-(3-carboxypropionyl) LA, i.e., LA methyl ester monosuccinate (LAMeMS)] were reacted with hydroxyethyl cellulose (HEC) to obtain a series of LA derivatives of HEC. These polymers were characterized by the mesogen content, 1.1, differential scanning calorimetry, and hot-stage coupled polarizing optical microscopy. The degree Of Substitution (DS) ranged from 0.27 to 1.11. Polymers HEC-LAB (DS = 1.11), HEC-LANB (DS = 0.80), HEC-LACin (DS = 0.76), and HEC-LAP (DS = 0.27) exhibited a mesophase on heating whereas HEC-LAB also showed a mesophase on cooling. The other polymers HEC-LAAC (DS = 0.89) and HEC-LAMeMS (DS = 0.36) did not reveal mesophase formation with either heating or cooling. It is observed that the formation of a mesophase is affected by the type of mesogen that is used rather than the mesogen content of the polymer. (c) 2006 Wiley Periodicals, Inc.</p>},
	keywords = {hydroxyethyl cellulose, lithocholic acid, thermotropic},
	issn = {0021-8995},
	doi = {10.1002/app.22285},
	author = {Shaikh, V. A. E. and Maldar, Noormahamad N. and Lonikar, Shrikant Vitthal and Rajan, C. R. and Ponrathnam, S.}
}
