Results 21 to 30 of about 16,392,537 (299)

Lower Critical Solution Temperature in Aqueous Solutions of N-Alkyl-Substituted Polyacrylamides [PDF]

open access: yesPolymer Journal, 1999
The structures and properties of N-alkyl-substituted polyacrylamides (PAA) were studied by FT-IR spectroscopy. For N-alkyl-substituted PAA with lower critical solution temperature (LCST), a specific H-bonded cyclic structure involving alkyl amide units of a polymer and hydroxyl functions of water was observed and found responsible for polymer ...
Platé, Nikolai A.   +2 more
openaire   +1 more source

Confined Water Molecules in Binary Mixtures of Water and 2,6-Lutidine Near Lower Solution Critical Temperature [PDF]

open access: yes, 2021
We study the concentration and temperature dependence of the reorientation dynamics of water molecules in binary mixtures of water and 2,6-lutidine below the lower solution critical temperature (LSCT) with femtosecond mid-infrared pump–probe spectroscopy.
Bakker, H.J. (Huib)   +1 more
core   +1 more source

Using Reverse Osmosis Membrane at High Temperature for Water Recovery and Regeneration from Thermo-Responsive Ionic Liquid-Based Draw Solution for Efficient Forward Osmosis

open access: yesMembranes, 2021
Forward osmosis (FO) membrane process is expected to realize energy-saving seawater desalination. To this end, energy-saving water recovery from a draw solution (DS) and effective DS regeneration are essential.
Eiji Kamio   +6 more
doaj   +1 more source

Efficient One‐Pot Preparation of Thermoresponsive Polyurethanes with Lower Critical Solution Temperatures [PDF]

open access: yesChemPlusChem, 2021
AbstractThis work reports a simple and scalable strategy to prepare a series of thermoresponsive polyurethanes synthesized via copolymerization of dicyclohexyl diisocyanate with glycerol ethoxylate in a single one‐pot system. These polyurethanes exhibit lower critical solution temperatures (LCST) at 57 °C.
Maiti, Binoy   +7 more
openaire   +6 more sources

A structural underpinning of the lower critical solution temperature (LCST) behavior behind temperature-switchable liquids [PDF]

open access: yes
In this study we use state of the art x-ray scattering and molecular dynamics structural probes to carry out a careful analysis of amine-water mixtures that show the unusual lower critical solution temperature (LCST) behavior.
Songsheng, Tao   +6 more
core   +3 more sources

Effects of the Structure of Benzenesulfonate-Based Draw Solutes on the Forward Osmosis Process

open access: yesMembranes, 2022
A series of phosphonium-based ionic liquids (ILs) based on benzenesulfonate derivatives (tetrabutylphosphonium benzenesulfonate ([TBP][BS]), tetrabutylphosphonium 4-methylbenzenesulfonate ([TBP][MBS]), tetrabutylphosphonium 2,4-dimethylbenzenesulfonate ([
DaEun Yang, Yeonsu Cho, Hyo Kang
doaj   +1 more source

Fluorescence Tumor-Imaging Using a Thermo-Responsive Molecule with an Emissive Aminoquinoline Derivative

open access: yesNanomaterials, 2018
We synthesized (2,4-trifluoromethyl-7-N-bis(2,5,8,11-tetraoxatridecane-13-yl)-aminoquinoline) TFMAQ-diEg4, an emissive aminoquinoline derivative that incorporated two tetraethyleneglycol chains into an amino group.
Takeru Araki   +9 more
doaj   +1 more source

Synthesis and characterization of dual-responsive poly(N-vinylcaprolactam-co-N-methylolacrylamide) nanogels

open access: yesDesigned Monomers and Polymers, 2022
This article reports the synthesis of poly(N-vinylcaprolactam-co-N-methylolacrylamide) (P(NVCL-co-NMA)) nanogels and investigates their thermo-/pH-responsive behavior.
Noverra M. Nizardo   +2 more
doaj   +1 more source

Catalytic one-handed helix-induction and memory of amphiphilic poly(biphenylylacetylene)s in water

open access: yesGiant, 2020
A series of amphiphilic biphenylylacetylene-based homo- and copolymers (PBPAs) carrying chiral and/or achiral oligo(ethylene glycol) pendants at the 4′-position of the biphenyl units were synthesized and the amplification of the macromolecular helicity ...
Tomoyuki Ikai   +7 more
doaj   +1 more source

Simultaneous Adsorption of Cation and Anion by Thermosensitive Hydrogels [PDF]

open access: yesMATEC Web of Conferences, 2021
Simultaneous usage of cationic and anionic thermosensitive hydrogels was shown to positively contribute to adsorption of heavy metal ions. The potential capacity for recovering heavy metal ions from an aqueous solution was enhanced by incorporating ...
Suharto Toni   +2 more
doaj   +1 more source

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