Results 201 to 210 of about 16,421 (234)
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Triple Hydrophilic UCST–LCST Block Copolymers
Macromolecules, 2016Thermosensitive 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 +3 more
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Thermo‐Responsive Polyoxazolines with Widely Tuneable LCST
Macromolecular Bioscience, 2009AbstractThe “click” modification of statistical poly[2‐(isopropyl/3‐butenyl)‐2‐oxazoline] copolymers with ω‐functionalized thiols can be used to generate a toolbox of thermo‐responsive polymers. The cloud points of the polymers can be finely tuned over a wide range as a function of composition and hydrophilicity of the side chain (hydrocarbon, alcohol,
Diehl, C., Schlaad, H.
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Charge-Determined LCST/UCST Behavior in Ionic Polypeptoids
Biomacromolecules, 2018Stimuli-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 +4 more
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Self‐assembled Fluorescent Nanoparticles with Tunable LCST Behavior in Water
Chemistry – An Asian Journal, 2022AbstractThe development of stimuli‐responsive fluorescent materials in water based on organic molecule has drawn significant interest. Herein, we designed and synthesized an amphiphilic molecule M containing a fixed tetraphenylethylene moiety (FTPE) as hydrophobic part and tri(ethylene glycol) (TEG) chains as hydrophilic part.
Tangxin Xiao +6 more
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Polymers for Advanced Technologies, 2015
An ionic thermo‐responsive copolymer with multiple lower critical solution temperatures (multi‐LCSTs) has been developed, and the multi‐LCSTs were easily changeable according to the various counter anion types. The multi‐LCST values were achieved by introducing an ionic segment with an imidazolium moiety within the p‐NIPAAm polymer chain to produce ...
Jae‐Won Seo, Ueon Sang Shin
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An ionic thermo‐responsive copolymer with multiple lower critical solution temperatures (multi‐LCSTs) has been developed, and the multi‐LCSTs were easily changeable according to the various counter anion types. The multi‐LCST values were achieved by introducing an ionic segment with an imidazolium moiety within the p‐NIPAAm polymer chain to produce ...
Jae‐Won Seo, Ueon Sang Shin
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A Novel Functional Polymer with Tunable LCST
Macromolecules, 2008Poly(N-[(2,2-dimethyl-1,3-dioxolane)methyl]acrylamide) (PDMDOMA), a novel thermo-responsive polymer containing pendant dioxolane groups was synthesized via atom transfer radical polymerization (ATRP). Water soluble PDMDOMAs with controlled molecular weight and narrow molecular weight distribution were obtained.
Yuquan Zou +2 more
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LCST–UCST-Based Copolymerizations
2011It was shown in Chap. 3 that a polymerization system can start as a conventional precipitation system and end as an FRRPP system, especially if the phase diagram exhibits an hourglass-shaped phase envelope at relatively high polymer molecular weight. This sets up the arguments for other types of shifts from UCST- and LCST-based chain polymerizations ...
Gerard Caneba, Yadunandan Dar
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Degradable thermoresponsive polymers which display redox-responsive LCST Behaviour
Chem. Commun., 2012Disulfide linkages were introduced into poly (N-isopropylacrylamide) by the polycondensation of a RAFT-derived, telechelic macromonomer to give degradable yet vinyl-based polymers. These polymers displayed a redox-sensitive lower critical solution temperature (LCST) with the shorter, degraded product displaying a higher LCST than its non-degraded ...
Phillips, Daniel J., Gibson, Matthew I.
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Supramolecular control over pillararene-based LCST phase behaviour
New Journal of Chemistry, 2018Based on the supramolecular interactions between pillar[5]arenes and ionic liquids, supramolecular control was successfully introduced into thermo-responsive systems to adjust LCST phase behaviour in water.
Li Wang +8 more
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Synthesis and Properties of Ionically Modified Polymers with LCST Behavior
Macromolecules, 1998Ionically modified LCST polymers were synthesized by free radical copolymerization of N-isopropylacrylamide (NIPAM) with various cationic, anionic, and amphoteric comonomers, resulting in products with comparable molecular masses and charge concentrations.
Hahn, M., Görnitz, E., Dautzenberg, H.
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