Control of osmotic pressure through CO2-capture and release facilitated by the lower critical solution temperature (LCST) phase transition of acylated branched polyethylenimine

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26526-26530 ◽  
Author(s):  
Jeongseon Park ◽  
Minwoo Noh ◽  
Min Keun Chey ◽  
Yeongbong Mok ◽  
Ji-Hun Seo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Phase Separation ◽  
Osmotic Pressure ◽  
Co2 Capture ◽  
Low Temperatures ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Low Salt ◽  
Branched Polyethylenimine ◽  
Capture And Release

A solution of acylated polyethylenimine absorbs CO2 at low temperatures and draws water from high-salt saline due to the high osmotic pressure, while it liberates CO2 after phase separation by mild heating and releases water into low-salt saline.

Lower critical solution temperature (LCST) phase separation of glycol ethers for forward osmotic control

2014 ◽  
Vol 16 (11) ◽  
pp. 5319-5325 ◽  
Author(s):  
Daichi Nakayama ◽  
Yeongbong Mok ◽  
Minwoo Noh ◽  
Jeongseon Park ◽  
Sunyoung Kang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Phase Separation ◽  
Temperature Gradient ◽  
Lower Critical Solution Temperature ◽  
Energy Efficient ◽  
Forward Osmosis ◽  
Solution Temperature ◽  
Glycol Ethers ◽  
Critical Solution Temperature ◽  
Mild Temperature

Lower critical solution temperature (LCST) phase transition of glycol ethers by a mild temperature gradient induces a drastic change in osmotic pressure to enable energy-efficient forward osmosis (FO) desalination.

Upper critical solution temperature (UCST) phase transition of halide salts of branched polyethylenimine and methylated branched polyethylenimine in aqueous solutions

2016 ◽  
Vol 52 (3) ◽  
pp. 509-512 ◽  
Author(s):  
Minwoo Noh ◽  
Sunah Kang ◽  
Yeongbong Mok ◽  
So Jung Choi ◽  
Jeongseon Park ◽  
...  
Keyword(s):  
Phase Transition ◽  
Aqueous Solutions ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Upper Critical Solution Temperature ◽  
Branched Polyethylenimine ◽  
Halide Salts

Halide salts of branched polyethylenimine (b-PEI) and methylated b-PEI exhibited UCST phase transition in aqueous solutions.

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.

scholarly journals Unexpected LCST-type phase behaviour of a poly(vinyl thiazolium) polymer in acetone

RSC Advances ◽  
2016 ◽  
Vol 6 (62) ◽  
pp. 57117-57121 ◽  
Author(s):  
Konrad Grygiel ◽  
Weiyi Zhang ◽  
Christophe Detrembleur ◽  
Jiayin Yuan
Keyword(s):  
Phase Transition ◽  
Lower Critical Solution Temperature ◽  
Acetone Solution ◽  
Phase Behaviour ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Type Phase

A poly(vinyl thiazolium) polymer in acetone solution exhibited an unexpected lower critical solution temperature (LCST)-type phase transition.

Unusual liquid–liquid phase transition in aqueous mixtures of a well-known dendrimer

2015 ◽  
Vol 17 (43) ◽  
pp. 28818-28829 ◽  
Author(s):  
Viviana C. P. da Costa ◽  
Onofrio Annunziata
Keyword(s):  
Phase Transition ◽  
Phase Separation ◽  
Liquid Phase ◽  
Aqueous Solutions ◽  
Salt Concentration ◽  
High Salt Concentration ◽  
Aqueous Mixtures ◽  
Liquid Phase Transition ◽  
Low Salt ◽  
Liquid Liquid Phase Separation

Salt induces liquid–liquid phase separation (LLPS) of the aqueous solutions of a dendrimer. LLPS occurs by cooling at low salt concentration and by heating at high salt concentration.

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