Results 1 to 10 of about 1,341 (115)

Tuning the upper critical solution temperature of acrylamide and acrylonitrile copolymers with ionic monomers [PDF]

Scientific Reports
In this research, poly(acrylamide-co-acrylonitrile) (poly(AAm-co-AN)) copolymers were synthesized by free radical polymerization to evaluate the upper critical solution temperature (UCST) of their aqueous solutions.
Hossein Najafi, Morteza Nasiri
doaj   +2 more sources

UCST-Activated Network Reinforcement in Hybrid Microgels for Smart Plugging [PDF]

Gels
Conventional polymer-based plugging materials often fail in deep-well environments due to passive thermal softening and network relaxation, which significantly compromise mechanical integrity and interfacial retention.
Mingliang Du, Huifeng He, Qingchen Wang, Keming Sheng, Guancheng Jiang, Yinbo He   +5 more
doaj   +2 more sources

Comparative efficacy of free and PNAGA-encapsulated antimalarial drugs: temperature-dependent modulation of Plasmodium falciparum growth [PDF]

Frontiers in Pharmacology
IntroductionPoly(N-acryloyl glycinamide) (PNAGA) was evaluated as a temperature-responsive carrier for antimalarial drugs.MethodsPNAGA was synthesized and characterized by DSC and TGA, and its sol–gel transition was determined by the reverse test-tube ...
Daniel Mutangadura, Paul Mushonga, Takafira Mduluza   +2 more
doaj   +2 more sources

Driving Forces of UCST and LCST Liquid–Liquid Phase Separations [PDF]

ACS Omega
Hussen O. Mohammed, Ronen Zangi
doaj   +2 more sources

Development and Application of Oil-Based Thermo-Responsive Gel Lost Circulation Material SBR−g−PSA [PDF]

Gels
Lost circulation of oil-based drilling fluids (OBDFs) in deep, fractured formations remains a critical challenge, primarily due to the poor retention and low pressure-bearing capacity of conventional materials on oil-wet rock surfaces. To bridge this gap,
Zhimin Liu, Chenxi Nie, Fengfeng Xiao, Mengyuan Chen, Ming Liu, Qi Feng, Changtao Yue   +6 more
doaj   +2 more sources

Mussel-inspired hydrogels with UCST for temperature-controlled reversible adhesion

Giant, 2023
Achieving on-demand adhesion on different surfaces remains an adaunting challenge for polymer adhesives. Herein, we report a temperature-controlled adhesion strategy of hydrogels based on the reversible exposure and shielding of adhesive promoters ...
Haiyan Zuo, Yaolong Yang, Dandan Zheng, Xiangfu Zhou, Lili Luo, Yu Liu, Weiang Luo, Guorong Chen, Birong Zeng, Yiting Xu, Conghui Yuan, Lizong Dai   +11 more
doaj   +1 more source

A Novel Method for the Preparation of Poly (Acrylamide-co-Acrylonitrile) Upper Critical Solution Temperature Thermosensitive Hydrogel by the Partial Dehydration of Acrylamide Grafted Polypropylene Sheets

Gels, 2022
In an attempt to find a potential application of cell culture harvesting, a novel method for the preparation of an upper critical solution temperature (UCST) thermosensitive hydrogel was studied. An electron accelerator was used as the electron beam (EB)
Yi Ling, Liuyuchen Chen, Mingjun Huang, Cheng Zhou, Liming Yang, Hejingying Niu, Li Su, Yuejiao Yang, Rogério P. Pirraco, Rui L. Reis, Jie Chen   +10 more
doaj   +1 more source

Thermo-sensitive self-assembly of poly(ethylene imine)/(phenylthio) acetic acid ion pair in surfactant solutions

Drug Delivery, 2022
Poly(ethylene imine)/(phenylthio) acetic acid (PEI/PTA) ion pairs exhibited an upper critical solution temperature (UCST) behavior in an aqueous solution and the UCST was higher as the PTA content was more.
Fanyu Zhao, Jin-Chul Kim
doaj   +1 more source

The Removal of Hydrophobic Matter from Thermosensitive Poly[oligo(ethylene glycol) Monomethyl Ether Acrylate] Gel Adsorbent in Alcohol–Water Mixtures

Gels, 2022
A thermosensitive gel that exhibits lower critical solution temperature (LCST) becomes hydrophilic at low temperatures and hydrophobic at high temperatures in water.
Syed Ragib Safi, Toshiki Kaneko, Katsuhiro Nakahara, Takehiko Gotoh, Takashi Iizawa   +4 more
doaj   +1 more source

Design of intrinsically disordered proteins that undergo phase transitions with lower critical solution temperatures

APL Materials, 2021
Many naturally occurring elastomers are intrinsically disordered proteins (IDPs) built up of repeating units, and they can demonstrate two types of thermoresponsive phase behavior.
Xiangze Zeng, Chengwen Liu, Martin J. Fossat, Pengyu Ren, Ashutosh Chilkoti, Rohit V. Pappu   +5 more
doaj   +1 more source