Results 11 to 20 of about 911,076 (286)

Upper Critical Solution Temperature (UCST) Behavior of Polystyrene-Based Polyampholytes in Aqueous Solution. [PDF]

open access: yesPolymers (Basel), 2019
Strong polyampholytes comprising cationic vinylbenzyl trimethylammonium chloride (VBTAC) bearing a pendant quaternary ammonium group and anionic sodium p-styrenesulfonate (NaSS) bearing a pendant sulfonate group were prepared via reversible addition-fragmentation chain-transfer polymerization. The resultant polymers are labelled P(VBTAC/NaSS)n, where n
Kanta Sharker K   +4 more
europepmc   +4 more sources

The Removal of Hydrophobic Matter from Thermosensitive Poly[oligo(ethylene glycol) Monomethyl Ether Acrylate] Gel Adsorbent in Alcohol–Water Mixtures

open access: yesGels, 2022
A thermosensitive gel that exhibits lower critical solution temperature (LCST) becomes hydrophilic at low temperatures and hydrophobic at high temperatures in water.
Syed Ragib Safi   +4 more
doaj   +1 more source

Ionic-Liquid-Based Aqueous Two-Phase Systems Induced by Intra- and Intermolecular Hydrogen Bonds

open access: yesMolecules, 2022
In recent years, aqueous two-phase systems (ATPSs) have been widely used in different fields and have become an increasingly attractive subject due to their application in the separation and purification of biomolecules.
Wenzhuo Xu   +3 more
doaj   +1 more source

Thermoresponsive Ionic Liquid/Water Mixtures: From Nanostructuring to Phase Separation

open access: yesMolecules, 2022
The thermodynamics, structures, and applications of thermoresponsive systems, consisting primarily of water solutions of organic salts, are reviewed. The focus is on organic salts of low melting temperatures, belonging to the ionic liquid (IL) family ...
Nancy C. Forero-Martinez   +3 more
doaj   +1 more source

Advances in thermo-responsive polymers exhibiting upper critical solution temperature (UCST)

open access: yeseXPRESS Polymer Letters, 2019
Immense work has been conducted in the field of thermoresponsive polymers specifically of lower critical solution temperature (LCST) type, but upper critical solution temperature (UCST) type polymers remain a significantly unexplored domain.
K. K. Bansal   +4 more
doaj   +1 more source

Hydrogen-bonding polymer complexation: Coacervation interfered with gelation

open access: yesGiant, 2023
Complexation between polymers of different species in a common solvent is a fundamental process in various applications such as functional polymeric membrane and drug delivery, yet the understanding of energetics, phase behaviors, and kinetics of polymer
Caihong Zhang   +3 more
doaj   +1 more source

Equilibrium and non-equilibrium concentration fluctuations in a critical binary mixture [PDF]

open access: yes, 2016
When a macroscopic concentration gradient is present across a binary mixture, long-ranged non-equilibrium concentration fluctuations (NCF) appear as a consequence of the coupling between the gradient and spontaneous equilibrium velocity fluctuations ...
Cerbino, Roberto   +3 more
core   +2 more sources

Programed Thermoresponsive Polymers with Cleavage-Induced Phase Transition

open access: yesMolecules, 2022
A new programed upper critical solution temperature-type thermoresponsive polymer was developed using water-soluble anionic polymer conjugates derived from polyallylamine and phthalic acid with cleavage-induced phase transition property. Intrinsic charge
Yukiya Kitayama   +4 more
doaj   +1 more source

Supramolecular control over self-assembly and double thermoresponsive behavior of an amphiphilic block copolymer [PDF]

open access: yes, 2020
A poly(ethylene glycol)-b-poly[N, N-dimethylacrylamide-ran-2-acrylamidoethyl nonanoate] (PEG-b-P(DMA-AAEN)) block copolymer has been demonstrated to show double thermoresponsive behavior in aqueous solution in the presence of hydroxypropylated ...
Hoogenboom, Richard   +5 more
core   +1 more source

Tuning the critical solution temperature of polymers by copolymerization [PDF]

open access: yes, 2015
We study statistical copolymerization effects on the upper critical solution temperature (CST) of generic homopolymers by means of coarse-grained Langevin dynamics computer simulations and mean-field theory.
Chudoba, Richard   +3 more
core   +3 more sources

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