Lyotropic liquid crystalline phase behaviour in amphiphile–protic ionic liquid systems

2012 ◽  
Vol 14 (11) ◽  
pp. 3825 ◽  
Author(s):  
Zhengfei Chen ◽  
Tamar L. Greaves ◽  
Celesta Fong ◽  
Rachel A. Caruso ◽  
Calum J. Drummond
Keyword(s):  
Ionic Liquid ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase ◽  
Protic Ionic Liquid ◽  
Liquid Systems

scholarly journals The search for new amphiphiles: synthesis of a modular, high-throughput library

2014 ◽  
Vol 10 ◽  
pp. 1578-1588 ◽  
Author(s):  
George C Feast ◽  
Thomas Lepitre ◽  
Xavier Mulet ◽  
Charlotte E Conn ◽  
Oliver E Hutt ◽  
...  
Keyword(s):  
High Throughput ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase ◽  
Preliminary Assessment ◽  
Degree Of Unsaturation ◽  
Amphiphilic Compounds ◽  
Head Groups ◽  
Hydrocarbon Chains

Amphiphilic compounds are used in a variety of applications due to their lyotropic liquid-crystalline phase formation, however only a limited number of compounds, in a potentially limitless field, are currently in use. A library of organic amphiphilic compounds was synthesised consisting of glucose, galactose, lactose, xylose and mannose head groups and double and triple-chain hydrophobic tails. A modular, high-throughput approach was developed, whereby head and tail components were conjugated using the copper-catalysed azide–alkyne cycloaddition (CuAAC) reaction. The tails were synthesised from two core alkyne-tethered intermediates, which were subsequently functionalised with hydrocarbon chains varying in length and degree of unsaturation and branching, while the five sugar head groups were selected with ranging substitution patterns and anomeric linkages. A library of 80 amphiphiles was subsequently produced, using a 24-vial array, with the majority formed in very good to excellent yields. A preliminary assessment of the liquid-crystalline phase behaviour is also presented.

Liquid crystalline phase behavior and fiber spinning of cellulose/ionic liquid/halloysite nanotubes dispersions

2014 ◽  
Vol 2 (20) ◽  
pp. 7327 ◽  
Author(s):  
Zhiqiang Luo ◽  
Aiqing Wang ◽  
Chunzheng Wang ◽  
Weichao Qin ◽  
Ningning Zhao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Phase Behavior ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Halloysite Nanotubes ◽  
Fiber Spinning ◽  
Liquid Crystalline Phase

Structure properties Relationships of Dendritic and Multipodal Liquid Crystal Materials based on Carbosilazane Cores

2001 ◽  
Vol 709 ◽  
Author(s):  
R. Elsäßer ◽  
D. Rodriguez Martin ◽  
R. M. Richardson ◽  
D. J. Photinos ◽  
J. W. Goodby ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase ◽  
Organic Hybrid ◽  
Columnar Phase ◽  
Smectic C ◽  
Phase Structures ◽  
Structure Properties

ABSTRACTThe synthesis of the first inorganic-organic hybrid liquid crystal dendrimers based on carbosilazane cores, which exhibit enantiotropic nematic and smectic C and columnar phase behaviour is presented and the liquid-crystalline phase properties and the phase structures are discussed.

Effects of molecular geometry on liquid crystalline phase behaviour: isotropic-nematic transition

2000 ◽  
Vol 98 (3) ◽  
pp. 179-192 ◽  
Author(s):  
EDUARDO GARCIA ◽  
DAVE C. WILLIAMSON ◽  
ANTONIO MARTINEZ-RICHA
Keyword(s):  
Crystalline Phase ◽  
Liquid Crystalline ◽  
Molecular Geometry ◽  
Phase Behaviour ◽  
Liquid Crystalline Phase
Sign in / Sign up

Export Citation Format

Share Document