Structure–LCST relationships for end-functionalized water-soluble polymers: an “accelerated” approach to phase behaviour studies

Jana, Satyasankar; Rannard, Steve P.; Cooper, Andrew I.

doi:10.1039/b702067h

Cited by 41 publications

(46 citation statements)

References 22 publications

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“…The hydrophobic content of the copolymer could be increased by introducing phenyl rings to the side chains. Recently, Cooper and coworkers reported a similar approach where they systematically end functionalized pDMAEMA with different alkyl end groups 18. The authors followed a high‐throughput approach and were able to determine the structure–LCST relationships.…”

Section: Resultsmentioning

confidence: 99%

Metal‐free synthesis of responsive polymers: Cloud point tuning by controlled “click” reaction

Becer

Kokado

Weber

et al. 2010

J. Polym. Sci. A Polym. Chem.

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Nitroxide‐mediated radical polymerization has been used for the preparation of pentafluorostyrene (PFS) homopolymers and random copolymers of PFS and oligo(ethyleneglycol) methacrylate (OEGMA8.5). The poly(pentafluorostyrene) homopolymers were reacted with thiophenol at different ratios at room temperature in the presence of triethylamine. The “clicked” polymers were characterized by 1H and 19F NMR spectroscopy and size exclusion chromatography. Moreover, the copolymerization kinetics of the PFS and OEGMA8.5 copolymers was followed, and the phase transition behavior of random copolymers with different compositions was discussed. Furthermore, copolymers of PFS and 2‐(dimethylamino) ethyl methacrylate (DMAEMA) were prepared at various mole ratios, and the copolymer with a 10:90 ratio, respectively, was soluble in water at room temperature. Turbidimetry measurements were performed for PFS and OEGMA8.5 or DMAEMA copolymers to determine their cloud points. Finally, the PFS and OEGMA8.5 copolymer with a mole ratio of 60:40 was reacted further with thiophenol to increase the hydrophobic part in the copolymer. The cloud points of the obtained copolymers could be tuned from 87 to 33 °C by using not only the controlled radical polymerization but also the “click” reaction in a controlled fashion. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1278–1286, 2010

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Section: Resultsmentioning

confidence: 99%

Metal‐free synthesis of responsive polymers: Cloud point tuning by controlled “click” reaction

Becer

Kokado

Weber

et al. 2010

J. Polym. Sci. A Polym. Chem.

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“…[1][2][3] Amongst the thermoresponsive polymers, an abundance of macromolecules exhibiting a lower critical solution temperature (LCST) with a coil-to-globule transition in water solution, are probably the most investigated. To date, the LCSTtype thermoresponsive polymers can be summarized into six categories: poly[oligo(ethylene glycol) (meth)acrylate]s, [5][6][7] poly(2alkyl-2-oxazoline)s, 8,9 poly(vinyl methyl ether)s, 10,11 polypeptides, [12][13][14] N-alkyl-substituted poly(aminoethyl methacrylate)s, [15][16][17][18] and especially N-substituted poly(meth)acrylamides with a pendant of amide group. Recently, many kinds of technologies have verified that the amide pendant of polyacrylamide plays key role in forming hydrogen bonding with water or the additives (e.g.…”

Section: Introductionmentioning

confidence: 99%

A new thermoresponsive polymer of poly(N-acryloylsarcosine methyl ester) with a tunable LCST

2017

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“…By far, the most studied polymers are linear polyvinyl polymers exemplified by poly( N ‐isopropylacrylamide) (PNIPAM), which has a lower critical solution temperature (LCST) of about 32°C, close to physiological temperatures 11–15. Other linear polymers with LCSTs in water include other poly( N ‐alkylacrylamides),16–19 poly( N ‐vinylcaprolactam),20 poly(2‐alkyl‐2‐oxazoline)s,21,22 polyethers,23 polyvinyl ethers,24,25 poly(dimethylaminoethylmethacrylate),26 polylactides,27 and copoly(oligoethylene oxide)acrylates 28,29…”

Section: Introductionmentioning

confidence: 99%

Tuning the thermoresponsive properties of hyperbranched poly(ester amide)s based on diisopropanolamine and cyclic dicarboxylic anhydrides

Kelland

2011

J of Applied Polymer Sci

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A range of water-soluble hyperbranched poly(ester amide)s has been synthesized with a view to studying their thermoresponsive behavior in water. Poly(ester amide)s with lower critical solution temperature (LCST) values around physiological temperatures are of interest for biological and medical applications, whereas poly(ester amide)s with high LCST values may be useful as kinetic hydrate inhibitors for high salinity produced fluids in the oil and gas industry. The LCST of these polymers was measured as the optical cloud point. The LCST can be tuned in various ways for these applications, for example, by varying the hydrophobicity of the groups on the cyclic anhydride monomer or by adjusting the hydrophilicity of the imine used to make the peripheral groups of the polymer.

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Structure–LCST relationships for end-functionalized water-soluble polymers: an “accelerated” approach to phase behaviour studies

Abstract: A novel "high throughput" technique for LCST measurement was developed which is able to identify the effect of subtle changes in end group composition on the aqueous phase behaviour of water-soluble poly(2-(dimethylamino)ethyl methacrylate).

Cited by 41 publications

References 22 publications

Metal‐free synthesis of responsive polymers: Cloud point tuning by controlled “click” reaction

Metal‐free synthesis of responsive polymers: Cloud point tuning by controlled “click” reaction

A new thermoresponsive polymer of poly(N-acryloylsarcosine methyl ester) with a tunable LCST

Tuning the thermoresponsive properties of hyperbranched poly(ester amide)s based on diisopropanolamine and cyclic dicarboxylic anhydrides

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