Results 151 to 160 of about 8,204 (174)

Optimization of thermoresponsive hydrogels based on oligomers with lower critical solution temperature (LCST) far below/above physiological temperatures for biomedical applications

Reactive and Functional Polymers, 2023
Hydrogels with oligo(ethylene glycol) (OEG), oligo(propylene glycol) (OPG), and for the first time with combined OEG/OPG pendant chains within the methacrylate (MA) network, were synthesized and the swelling behavior, thermal properties, microstructure, and genotoxicity were investigated. Prior to hydrogel fabrication, an optimized method was developed
Suljovrujić, Edin H., Krstić, Maja, Rogić Miladinović, Zorana, Petrović, Sandra, Leskovac, Andreja, Stamboliev, Georgi   +5 more
openaire   +2 more sources

Protection of DNA by metal ions at 95 °C: from lower critical solution temperature (LCST) behavior to coordination-driven self-assembly

Nanoscale, 2022
While polyvalent metal ions and heating can both degrade nucleic acids, we herein report that a combination of them leads to stabilization.
Chang Lu, Yuancong Xu, Po-Jung Jimmy Huang, Mohamad Zandieh, Yihao Wang, Jinkai Zheng, Juewen Liu   +6 more
openaire   +2 more sources

Lower critical solution temperature (LCST) polymer solution for clear/cloud glazing applications

Journal of Applied Polymer Science, 1994
AbstractAn aqueous‐based clear/cloud solution was developed using poly(vinyl methyl ether) and an antifreeze mixture of ethylene and propylene glycols. The solution has a controllable cloud point from 15 to 90°C, freeze protection to −46°C, and a density that prevents the precipitated polymer from settling and is fairly stable to UV degradation.
D. P. Gundlach, K. A. Burdett
openaire   +1 more source

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

Phys. Chem. Chem. Phys., 2014
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.
Daichi, Nakayama, Yeongbong, Mok, Minwoo, Noh, Jeongseon, Park, Sunyoung, Kang, Yan, Lee   +5 more
openaire   +2 more sources

Ionic Liquid Modifies the Lower Critical Solution Temperature (LCST) of Poly(N-isopropylacrylamide) in Aqueous Solution

The Journal of Physical Chemistry B, 2011
The effect of the imidazolium based ionic liquid (IL) 1-benzyl-3-methylimidazolium tetrafluoroborate ([Bzmim][BF(4)]) was investigated on the lower critical solution temperature (LCST) of poly(N-isopropylacrylamide) (PNIPAM) in aqueous solution by using fluorescence, viscometric, and dynamic light scattering (DLS) techniques.
P Madhusudhana, Reddy, P, Venkatesu
openaire   +2 more sources

Poly(n-butyl methacrylate) in Ionic Liquids with Tunable Lower Critical Solution Temperatures (LCST)

The Journal of Physical Chemistry B, 2011
We describe the lower critical solution temperature (LCST)-type phase behavior of poly(n-butyl methacrylate) (PnBMA) (M =13,000 and 48,000) dissolved in 1-alkyl-3-methylimidazolium bis{(trifluoromethyl) sulfonyl}amide ionic liquids (ILs). The temperature-composition phase diagrams of these PnBMA/IL systems are strongly asymmetric with the critical ...
Hau-Nan, Lee, Timothy P, Lodge
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Biocompatible poly(N-(ω-acryloyloxy-n-alkyl)-2-pyrrolidone)s with widely-tunable lower critical solution temperatures (LCSTs): a promising alternative to poly(N-isopropylacrylamide)

Polymer Chemistry, 2022
The biocompatible (co)polymers undergoes a thermal stimulus-driven liquid–liquid phase separation and form coacervates above the lower critical solution temperature (LCST). The LCSTs are able to be precisely controlled between 0 °C and 100 °C.
Shin-nosuke Nishimura, Kei Nishida, Tomoya Ueda, Shohei Shiomoto, Masaru Tanaka   +4 more
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The lower critical solution temperature (LCST) of non‐polar polymer solutions: An introduction

Polymer Engineering & Science, 1982
AbstractThe phase behavior at high temperatures of non‐polar polymer solutions is discussed in a qualitative way in terms of the free volume theory of liquids developed by Prigogine, Patterson and Flory. This theory is necessary to explain the existence of a Lower Critical Solution Temperature (LCST) in non‐polar polymer solutions and the related ...
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N-Ester-substituted polyacrylamides with a tunable lower critical solution temperature (LCST): the N-ester-substitute dependent thermoresponse

Polymer Chemistry, 2016
New thermoresponsive polymers ofN-ester-substituted polyacrylamides were discovered, and theN-ester-substitute exerting a great influence on the solution property was demonstrated.
Shengli Chen, Yuan Zhang, Ke Wang, Heng Zhou, Wangqing Zhang   +4 more
openaire   +1 more source

Zwitterionic poly(sulfobetaine methacrylate)s in water: from upper critical solution temperature (UCST) to lower critical solution temperature (LCST) with increasing length of one alkyl substituent on the nitrogen atom

Polymer Chemistry, 2018
Increasing the alkyl length on nitrogen of the polymer changes behaviour from UCST, to soluble, LCST, and insoluble.
Ning Wang, Bryan T. Seymour, Evan M. Lewoczko, Ethan W. Kent, Ming-Li Chen, Jian-Hua Wang, Bin Zhao   +6 more
openaire   +1 more source