Water-soluble random and alternating copolymers of styrene monomers with adjustable lower critical solution temperature

2012 ◽  
Vol 3 (2) ◽  
pp. 352-361 ◽  
Author(s):  
Jan Weiss ◽  
Ang Li ◽  
Erik Wischerhoff ◽  
André Laschewsky
Keyword(s):  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Alternating Copolymers

scholarly journals Designing the thermal behaviour of aqueous biphasic systems composed of ammonium-based zwitterions

2017 ◽  
Vol 19 (17) ◽  
pp. 4012-4016 ◽  
Author(s):  
Ana M. Ferreira ◽  
Helena Passos ◽  
Akiyoshi Okafuji ◽  
Mara G. Freire ◽  
João A. P. Coutinho ◽  
...  
Keyword(s):  
Thermal Behaviour ◽  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Aqueous Biphasic Systems ◽  
Upper Critical Solution Temperature ◽  
Aqueous Biphasic ◽  
Biphasic Systems

The design of the thermal behaviour – from an upper critical solution temperature (UCST) to a lower critical solution temperature (LCST) – of aqueous biphasic systems composed of water-soluble ammonium-based zwitterions.

Chemical-responsive control of lower critical solution temperature behavior by pillar[10]arene-based host–guest interactions

2014 ◽  
Vol 50 (89) ◽  
pp. 13754-13756 ◽  
Author(s):  
Xiaodong Chi ◽  
Min Xue
Keyword(s):  
Ethylene Oxide ◽  
Cloud Point ◽  
Lower Critical Solution Temperature ◽  
Water Soluble ◽  
Temperature Behavior ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
System P ◽  
Guest System

A new water-soluble thermoresponsive pillar[10]arene with tri(ethylene oxide) groups was synthesized and its cloud point could be reversibly controlled based on a chemical-responsive host–guest system.

scholarly journals A thermoresponsive poly(ionic liquid) membrane enables concentration of proteins from aqueous media

2016 ◽  
Vol 52 (47) ◽  
pp. 7497-7500 ◽  
Author(s):  
Yuki Kohno ◽  
Douglas L. Gin ◽  
Richard D. Noble ◽  
Hiroyuki Ohno
Keyword(s):  
Ionic Liquid ◽  
Lower Critical Solution Temperature ◽  
Liquid Membrane ◽  
Aqueous Media ◽  
Water Soluble ◽  
Phase Behaviour ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
New Type ◽  
Poly Ionic Liquid

A new type of poly(ionic liquid) membrane, which shows switchable hydrated states via lower critical solution temperature-type phase behaviour, enables concentration of some water-soluble proteins from aqueous media.

scholarly journals Synthesis of a thermoresponsive crosslinked MEO2MA polymer coating on microclusters of iron oxide nanoparticles

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alejandro Lapresta-Fernández ◽  
Alfonso Salinas-Castillo ◽  
Luis Fermín Capitán-Vallvey
Keyword(s):  
Iron Oxide ◽  
Synthesis Temperature ◽  
Water Soluble ◽  
Covalent Attachment ◽  
Solution Temperature ◽  
Tetraethylene Glycol ◽  
Critical Solution Temperature ◽  
Large Size ◽  
Transmission Electron ◽  
Azo Initiator

AbstractEncapsulation of magnetic nanoparticles (MNPs) of iron (II, III) oxide (Fe3O4) with a thermopolymeric shell of a crosslinked poly(2-(2-methoxyethoxy)ethyl methacrylate) P(MEO2MA) is successfully developed. Magnetic aggregates of large size, around 150–200 nm are obtained during the functionalization of the iron oxide NPs with vinyl groups by using 3-butenoic acid in the presence of a water soluble azo-initiator and a surfactant, at 70 °C. These polymerizable groups provide a covalent attachment of the P(MEO2MA) shell on the surface of the MNPs while a crosslinked network is achieved by including tetraethylene glycol dimethacrylate in the precipitation polymerization synthesis. Temperature control is used to modulate the swelling-to-collapse transition volume until a maximum of around 21:1 ratio between the expanded: shrunk states (from 364 to 144 nm in diameter) between 9 and 49 °C. The hybrid Fe3O4@P(MEO2MA) microgel exhibits a lower critical solution temperature of 21.9 °C below the corresponding value for P(MEO2MA) (bulk, 26 °C). The MEO2MA coating performance in the hybrid microgel is characterized by dynamic light scattering and transmission electron microscopy. The content of preformed MNPs [up to 30.2 (wt%) vs. microgel] was established by thermogravimetric analysis while magnetic properties by vibrating sample magnetometry.

A polyelectrolyte-containing copolymer with a gas-switchable lower critical solution temperature-type phase transition

2019 ◽  
Vol 10 (2) ◽  
pp. 260-266 ◽  
Author(s):  
Jin-Jin Li ◽  
Yin-Ning Zhou ◽  
Zheng-Hong Luo ◽  
Shiping Zhu
Keyword(s):  
Phase Transition ◽  
Cloud Point ◽  
Lower Critical Solution Temperature ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Type Phase

A polyelectrolyte-containing copolymer with a CO2/N2-switchable cloud point, resulting from the gas-induced alternation of hydrophilicity, was prepared.

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