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Thermotropic behavior of cholesterol-linked polysaccharides

✍ Scribed by V. A. E. Shaikh; N. N. Maldar; S. V. Lonikar; C. R. Rajan; S. Ponrathnam

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
182 KB
Volume
70
Category
Article
ISSN
0021-8995

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✦ Synopsis

Cholesterol-linked polysaccharides were prepared by reacting monocholesterylsuccinate (ChMS) with cellulose acetate [AC; degree of substitution (DS) 1.00, 1.80, and 2.33], ethyl cellulose (EC; DS 2.46), starch, and hydroxyethyl starch (HES; molar substitution, 0.05-0.07). The degree of ChMS substitution ranged from 0.27 to 1.29. The polymers were characterized by IR, NMR, DSC, and hot-stage coupled polarizing microscopy. Polymers with a higher DS of ChMS showed a thermotropic liquid crystalline behavior.

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