Results 11 to 20 of about 10,125 (245)

LCST polymers with UCST behavior [PDF]

Soft Matter, 2021
In this study, temperature dependent behavior of dense dispersions of core crosslinked flower-like micelles is investigated.
Marzieh Najafi, Mehdi Habibi, Remco Fokkink, Wim E. Hennink, Tina Vermonden   +4 more
openaire   +7 more sources

LCST-type polymers based on chiral-polymeric ionic liquids [PDF]

Chemical Communications, 2014
The self-assembly of linear polymers containing chiral IL units generates a high-order supramacromolecular structure with a complex hierarchical architecture, which is able to exhibit thermoresponsive behavior (lower critical solution temperature: LCST) with different structural elements that can be used to fine tune this LCST.
Montolio Breva, Silvia, González, Laura, Altava, Belen, Tenhu, Heikki, Burguete, M. Isabel, Garcia-Verdugo, Eduardo, Luis, Santiago V.   +6 more
openaire   +4 more sources

Triple Hydrophilic UCST–LCST Block Copolymers

Macromolecules, 2016
Thermosensitive ABC triblock copolymers with different block lengths and block orders were prepared by reversible addition–fragmentation chain transfer (RAFT) polymerization. Using a nonionic macro-RAFT agent containing poly(ethylene oxide) (PEO, average degree of polymerization 17), either N-acryloylglycinamide (NAGA) or N-isopropylacrylamide (NIPAM ...
Lauri Mäkinen, Divya Varadharajan, Heikki Tenhu, Sami Hietala   +3 more
openaire   +2 more sources

Scaled water sigma potential as a descriptor of LCST and UCST behavior in aqueous ionic liquid solutions

Journal of Ionic Liquids
This study introduces the scaled sigma potential of water (σr), a new metric using the COSMO-RS (Conductor like Screening Model for Real Solvents) framework, as a descriptor of upper and lower critical solution temperature (UCST and LCST) governed phase ...
Sidharth Sanadhya, Gregory M. Durling, Brandon L. Ashfeld, Saeed Moghaddam   +3 more
doaj   +2 more sources

Charge-Determined LCST/UCST Behavior in Ionic Polypeptoids

Biomacromolecules, 2018
Stimuli-responsive polymers have received increasing interest for a variety of applications. Here, we report a series of unique charge-determined thermoresponsive polypeptoids synthesized by a combination of ring-opening polymerization and click chemistry.
Chao Xing, Zhekun Shi, Jiliang Tian, Jing Sun, Zhibo Li   +4 more
openaire   +3 more sources

Interionic bonding in aqueous phosphonium ionic liquid solutions exhibiting LCST behavior with high phase separation temperatures

Journal of Ionic Liquids
Phosphonium-derived ionic liquids have emerged as a powerful class of thermoresponsive materials with sought after Lower Critical Solution Temperature (LCST) phase separation with applications across a broad range of fields.
Eva M. Gulotty, Sidharth Sanadhya, Katelyn A. Wendt, Zachary D. Tucker, Saeed S. Moghaddam, Brandon L. Ashfeld   +5 more
doaj   +2 more sources

Effect of LCST on the swelling of PAAm-NIPA copolymers: a fluorescence study

Polymer Bulletin, 2011
Temperature sensitive copolymers were prepared by free radical crosslinking copolymerization in aqueous solution with different molar percentage of N-isopropylacrylamide (NIPA) and acrylamide (AAm) monomers. N,N′-methylenebis (acrylamide) (BIS) and ammonium persulfate (APS) were used as a crosslinker and an initiator, respectively.
Evingür, Gülşen Akin, Pekcan, Mehmet Önder, Pekcan, Önder   +2 more
openaire   +4 more sources

Polyproline: A Synthetic Polypeptide With Unique Properties. [PDF]

Angew Chem Int Ed Engl
Poly‐L‐proline is a unique polypeptide distinguished by its well‐defined secondary structures and unusual thermal behavior. This mini review highlights recent advances in the synthesis of poly‐L‐proline by N‐carboxyanhydride (NCA) polymerization, the formation of structurally defined architectures and nanostructures, and emerging strategies that ...
Scouarnec RL, Galindo JM, Bonduelle C, Heise A.   +3 more
europepmc   +3 more sources

Effect of order on LCST and gelation of polyolefin solutions

, 1982
Lower critical solubility temperatures (LCST) have been measured for polyethylene (PE), polypropylene, ethylene-propylene copolymers, polybutene-1, polypentene-1 and poly 4-methylpentene-1 (P4MP1) in twenty-five isomeric alkanes. The LCST for PE are much lower than for branched polyolefins, especially in branched alkanes.
Charlet, Gérard.
openaire   +2 more sources

Polyzwitterions with LCST Side Chains: Tunable Self-Assembly [PDF]

Macromolecules, 2020
Abstract Manipulation of self-assembly behavior of copolymers via environmental change is attractive in the fabrication of smart polymeric materials. We present tunable self-assembly behavior of graft copolymers, poly(sulfobetaine methacrylate)-graft-poly[oligo(ethylene glycol) methyl ether methacrylate)-co-di(ethylene glycol) methyl ...
Tao Jiang, Vladimir Aseyev, Jukka Niskanen, Sami Hietala, Qilu Zhang, Heikki Tenhu   +5 more
openaire   +3 more sources