scholarly journals Upper Critical Solution Temperature Behavior of pH-Responsive Amphoteric Statistical Copolymers in Aqueous Solutions

ACS Omega ◽  
2021 ◽  
Vol 6 (13) ◽  
pp. 9153-9163
Author(s):  
Komol Kanta Sharker ◽  
Yusuke Shigeta ◽  
Shinji Ozoe ◽  
Panittha Damsongsang ◽  
Voravee P. Hoven ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Temperature Behavior ◽  
Solution Temperature ◽  
Ph Responsive ◽  
Critical Solution Temperature ◽  
Upper Critical Solution Temperature

scholarly journals Effects of the Hydrophilic–Lipophilic Balance of Alternating Peptides on Self-Assembly and Thermo-Responsive Behaviors

2019 ◽  
Vol 20 (18) ◽  
pp. 4604 ◽  
Author(s):  
Ihsan ◽  
Nargis ◽  
Koyama
Keyword(s):  
Aqueous Solutions ◽  
Self Assembly ◽  
Polymer Chains ◽  
Systematic Evaluation ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Hydrophilic Lipophilic Balance ◽  
Upper Critical Solution Temperature ◽  
Cloud Points ◽  
Micellization Behavior

A series of N-substituted poly(Gly–alter–Val) peptides were successfully synthesized for the systematic evaluation of the micellization behavior of alternating peptides. Three-component polymerization employing an aldehyde, a primary ammonium chloride, and potassium isocyanoacetate afforded four alternating peptides in excellent yields. We investigated the dependence of the hydrophilic–lipophilic balance of alternating peptides on the micellization behavior. All the aqueous solutions of alternating peptides exhibited upper critical solution temperature (UCST) behaviors, strongly indicating that the alternating binary pattern would mainly contribute to the UCST behaviors. The cloud points of alternating peptides shifted to higher temperatures as the side chains became more hydrophilic, which is opposite to the trend of typical surfactants. Such unusual micellization behaviors appeared to be dependent on the quasi-stable structure of single polymer chains formed in water.

scholarly journals Zwitterionic polymers showing upper critical solution temperature behavior as draw solutes for forward osmosis

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56426-56432 ◽  
Author(s):  
Changha Ju ◽  
Hyo Kang
Keyword(s):  
Forward Osmosis ◽  
Temperature Behavior ◽  
Solution Temperature ◽  
Critical Solution Temperature ◽  
Zwitterionic Polymers ◽  
Upper Critical Solution Temperature ◽  
First Time

We investigated the suitability of homopolymer with UCST characteristics as draw solutes for the FO process for the first time.

scholarly journals How to manipulate the upper critical solution temperature (UCST)?

2017 ◽  
Vol 8 (1) ◽  
pp. 220-232 ◽  
Author(s):  
Jukka Niskanen ◽  
Heikki Tenhu
Keyword(s):  
Aqueous Solutions ◽  
Solution Temperature ◽  
Stimuli Responsive ◽  
Critical Solution Temperature ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Ph Influence ◽  
Counter Ions ◽  
Upper Critical Solution Temperature

In this mini-review, we discuss multi-stimuli-responsive polymers, which exhibit upper critical solution temperature (UCST) behavior mainly in aqueous solutions, and focus on examples where counter ions, electricity, light, or pH influence the thermoresponsiveness of these polymers.

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