scholarly journals New aspects in the phase behaviour of poly-N-isopropyl acrylamide: systematic temperature dependent shrinking of PNiPAM assemblies well beyond the LCST

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Irmgard Bischofberger ◽  
Veronique Trappe
Keyword(s):  
Phase Behaviour ◽  
Temperature Dependent ◽  
Isopropyl Acrylamide

Temperature-dependent phase behaviour of dihydroxy octadecanoic acid methyl esters: Influence of stereochemistry and position of the second polar moiety

2000 ◽  
Vol 2 (20) ◽  
pp. 4515-4520 ◽  
Author(s):  
Marina Fix ◽  
Manfred Sieber ◽  
Michael Overs ◽  
Hans J. Schäfer ◽  
Hans-Joachim Galla
Keyword(s):  
Methyl Esters ◽  
Phase Behaviour ◽  
Octadecanoic Acid ◽  
Temperature Dependent ◽  
Acid Methyl

scholarly journals Twist-Bend Nematogenic Supramolecular Dimers and Trimers Formed by Hydrogen Bonding

Crystals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 175 ◽  
Author(s):  
Rebecca Walker ◽  
Damian Pociecha ◽  
Alfonso Martinez-Felipe ◽  
John MD Storey ◽  
Ewa Gorecka ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Phase Behaviour ◽  
X Ray Diffraction ◽  
Temperature Dependent ◽  
Smectic C ◽  
Donor And Acceptor ◽  
Nematic Phases ◽  
Selection Of ◽  
Do So ◽  
Terminal Chain

A selection of novel non-symmetric supramolecular liquid crystal dimers and trimers formed by hydrogen-bonding have been prepared and their phase behaviour characterised by polarised optical microscopy, X-ray diffraction and temperature-dependent Fourier-transform infrared spectroscopy. We mix the bent twist-bend nematogen 4-[6-(4’-cyanobiphenyl-4-yl) hexyloxy]-benzoic acid (CB6OBA) with a series of small stilbazole-based compounds 4-[(E)-2-(n-alkoxyphenyl)ethenyl]pyridines (nOS) of varying terminal chain length (n) to obtain the CB6OBA:nOS complexes. Complexes with n ≤ 7 exhibit nematic and twist-bend nematic behaviour, followed on cooling by a smectic C phase for n = 4–7, and finally, a hexatic-type smectic X phase for n = 3–7. Mixtures with n = 8–10 exhibit a smectic A phase below the conventional nematic phase, and on further cooling, a biaxial smectic Ab phase and the same hexatic-type SmX phase. Supramolecular trimers, CB6OBA:CB6OS and CB6OBA:1OB6OS, formed between CB6OBA and dimeric stilbazoles [(E)-2-(4-{[6-(4’-methoxy[1,1’-biphenyl]-4-yl)hexyl]oxy}phenyl)ethenyl]pyridine (1OB6OS) or 4-[(E)-4’-(6-{4-[(E)-2-(pyridin-4-yl)ethenyl]phenoxy}hexyl)[1,1’-biphenyl]-4- carbonitrile (CB6OS), exhibit nematic and twist-bend nematic phases, and are the first hydrogen-bonded trimers consisting of unlike donor and acceptor fragments to do so.

scholarly journals Homogeneous liquid–liquid extraction of metal ions with non-fluorinated bis(2-ethylhexyl)phosphate ionic liquids having a lower critical solution temperature in combination with water

2015 ◽  
Vol 51 (75) ◽  
pp. 14183-14186 ◽  
Author(s):  
Daphne Depuydt ◽  
Liwang Liu ◽  
Christ Glorieux ◽  
Wim Dehaen ◽  
Koen Binnemans
Keyword(s):  
Ionic Liquids ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Liquid Extraction ◽  
Phase Behaviour ◽  
Solution Temperature ◽  
Temperature Dependent ◽  
Critical Solution Temperature ◽  
Homogeneous Liquid ◽  
Liquid Liquid Extraction

Bis(2-ethylhexyl)phosphate ionic liquids show a temperature-dependent phase behaviour of the LCST-type and can extract transition metal ions very efficiently via homogeneous liquid–liquid extraction.

Unexpected Temperature-Dependent Single Chain Mechanics of Poly(N-isopropyl-acrylamide) in Water

Langmuir ◽  
2012 ◽  
Vol 28 (11) ◽  
pp. 5151-5157 ◽  
Author(s):  
Shuxun Cui ◽  
Xiangchao Pang ◽  
Shen Zhang ◽  
You Yu ◽  
Hongwei Ma ◽  
...  
Keyword(s):  
Single Chain ◽  
Temperature Dependent ◽  
Isopropyl Acrylamide

scholarly journals Temperature-dependent phase behaviour of tetrahydrofuran–water alters solubilization of xylan to improve co-production of furfurals from lignocellulosic biomass

2018 ◽  
Vol 20 (7) ◽  
pp. 1612-1620 ◽  
Author(s):  
Micholas Dean Smith ◽  
Charles M. Cai ◽  
Xiaolin Cheng ◽  
Loukas Petridis ◽  
Jeremy C. Smith
Keyword(s):  
Lignocellulosic Biomass ◽  
Phase Behaviour ◽  
Miscibility Gap ◽  
Temperature Dependent ◽  
Selective Solvation

Selective solvation of xylan by water in the THF–Water miscibility gap allows tunable solubilization.

scholarly journals Membrane-protein crystallizationin cubo: temperature-dependent phase behaviour of monoolein–detergent mixtures

2003 ◽  
Vol 59 (2) ◽  
pp. 239-246 ◽  
Author(s):  
Charles Sennoga ◽  
Andrew Heron ◽  
John M. Seddon ◽  
Richard H. Templer ◽  
Ben Hankamer
Keyword(s):  
Membrane Protein ◽  
Phase Behaviour ◽  
Temperature Dependent

scholarly journals Poly(N-isopropyl acrylamide)–poly(ethylene glycol)–poly(N-isopropyl acrylamide) as a thermoreversible gelator for topical administration

2020 ◽  
Vol 1 (3) ◽  
pp. 371-386 ◽  
Author(s):  
P. Haddow ◽  
W. J. McAuley ◽  
S. B. Kirton ◽  
M. T. Cook
Keyword(s):  
Ethylene Glycol ◽  
Topical Administration ◽  
Poly Ethylene Glycol ◽  
Temperature Dependent ◽  
Isopropyl Acrylamide ◽  
Poly Ethylene

PNIPAM98–PEG122–PNIPAM98 is explored as a thermoreversible gelator for topical administration, giving temperature-dependent release of progesterone over up to 6 days.

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