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US 12,129,353 B2Granted
Cellulose-enabled orientationally ordered flexible gels
AssigneeThe Regents of the University of Colorado
InventorsAndrew J. Hess, Qingkun Liu, Ivan I. Smalyukh
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Abstract
Disclosed are cellulose-based flexible gels containing cellulose nanorods, ribbons, fibers, and the like, and cellulose-enabled inorganic or polymeric composites, wherein the gels have tunable optical, heat transfer, and stiffness properties. The disclosed gels are in the form of hydrogels, organogels, liquid-crystal (LC) gels, and aerogels, depending on the solvents in the gels.
Claims15
A liquid crystal gel comprising:
- a) a cellulosic matrix network formed of crosslinked nanocellulose material having a cross section of between about 3 nm and about 50 nm;
- and
- b) one or more liquid crystal solvents,
- wherein the one or more liquid crystal solvents are nematic liquid crystals.
1 more element
A liquid crystal gel comprising:
- a) a cellulosic matrix network formed of crosslinked nanocellulose material having a cross section of between about 3 nm and about 50 nm;
- and
- b) one or more liquid crystal solvents,
- wherein the one or more liquid crystal solvents are chosen from 1-(trans-4-hexylcyclohexyl)-4-isothiocyanatobenzene;
- 4′-(hexyloxy)-4-biphenylcarbonitrile;
- 41-(octyloxy)-4-biphenyl-carbonitrile;
- 4′-(pentyloxy)-4-biphenylcarbonitrile;
- 4′-heptyl-4-biphenylcarbonitrile;
- 4′-hexyl-4-biphenylcarbonitrile;
- 4′-octyl-4-biphenylcarbonitrile;
- 4′-pentyl-4-biphenylcarbonitrile;
- 4,4′-azoxyanisole;
- 4-isothiocyanatophenyl 4-pentyl-bicyclo[2.2.2]octane-1-carboxylate;
- 4-(trans-4-pentylcyclohexyl)benzonitrile;
- 4-methoxycinnamic acid;
- N-(4-ethoxybenzylidene)-4-butylaniline;
- or N-(4-methoxy-benzylidene)-4-butylaniline.
14 more elements
Dependencies are inferred from the claim text.