Results 201 to 210 of about 12,271 (224)
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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 +6 more
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While polyvalent metal ions and heating can both degrade nucleic acids, we herein report that a combination of them leads to stabilization.
Chang Lu +6 more
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Polymer, 1989
Abstract This paper reports two investigations on polyisoprene. One consists of obtaining the molecular weight distribution (MWD) of cis -polyisoprene (PIP) standards by a new method using the turbidity at a lower critical solution temperature (LCST).
Takouhi Bohossian +2 more
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Abstract This paper reports two investigations on polyisoprene. One consists of obtaining the molecular weight distribution (MWD) of cis -polyisoprene (PIP) standards by a new method using the turbidity at a lower critical solution temperature (LCST).
Takouhi Bohossian +2 more
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Journal of Biomaterials Science, Polymer Edition, 1994
We have been studying adsorption and retention (resistance to desorption) behavior of temperature sensitive LCST polymers on different substrates as a function of temperature. According to our studies with Poly 64 (a copolymer of 60% (mol) NIPAAm and 40% (mol) NnBAAm, LCST = 8.5 degrees C in water), the copolymer retention depends on the rinse ...
M, Miura +3 more
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We have been studying adsorption and retention (resistance to desorption) behavior of temperature sensitive LCST polymers on different substrates as a function of temperature. According to our studies with Poly 64 (a copolymer of 60% (mol) NIPAAm and 40% (mol) NnBAAm, LCST = 8.5 degrees C in water), the copolymer retention depends on the rinse ...
M, Miura +3 more
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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 +5 more
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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 +5 more
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Poly(n-butyl methacrylate) in Ionic Liquids with Tunable Lower Critical Solution Temperatures (LCST)
The Journal of Physical Chemistry B, 2011We 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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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
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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
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Lower Critical Solution Temperature (LCST) Phase Behavior of Poly(ethylene oxide) in Ionic Liquids
The Journal of Physical Chemistry Letters, 2010We describe the LCST-type phase behavior of poly(ethylene oxide) (PEO) (M = 5000 and 20000) dissolved in 1,3-dialkylimidazolium tetrafluoroborate ionic liquids. The phase transition temperatures were identified using cloud point measurements. In these PEO/ionic liquid systems, liquid−liquid phase separation is observed in the temperature range from 130
Hau-Nan Lee, Timothy P. Lodge
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Journal of Applied Polymer Science, 1992
AbstractThe composition and molecular weight distribution of linear low‐density polyethylenes (LLDPE) have been determined by fractionation and characterization at a lower critical solution temperature (LCST). The fractionation in 2,4‐dimethyl pentane takes advantage of the fact that the LCST is sensitive to the side‐group content as indicated by the ...
Alla Barbalata +2 more
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AbstractThe composition and molecular weight distribution of linear low‐density polyethylenes (LLDPE) have been determined by fractionation and characterization at a lower critical solution temperature (LCST). The fractionation in 2,4‐dimethyl pentane takes advantage of the fact that the LCST is sensitive to the side‐group content as indicated by the ...
Alla Barbalata +2 more
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Physical Chemistry Chemical Physics, 2013
Abrupt changes in effective concentration and osmotic pressure of lower critical solution temperature (LCST) mixtures facilitate the design of a continuous desalination method driven by a mild temperature gradient. We propose a prototype desalination system by circulating LCST mixtures between low and high temperature (low T and high T) units.
Yeongbong, Mok +5 more
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Abrupt changes in effective concentration and osmotic pressure of lower critical solution temperature (LCST) mixtures facilitate the design of a continuous desalination method driven by a mild temperature gradient. We propose a prototype desalination system by circulating LCST mixtures between low and high temperature (low T and high T) units.
Yeongbong, Mok +5 more
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Journal of Macromolecular Science, Part B, 2011
Temperature-responsive hydrogel with a lower critical solution temperature (LCST) close to human body temperature was prepared. Crosslinked N-isopropylacrylamide (NIPAAm) and acrylic acid (AAc) copolymer networks were synthesized at various monomer ratios in the presence of ammonium persulfate (APS), N,N′-methylenebisacrylamide (NMBA) and N,N,N′,N ...
Shingjiang Jessie Lue +2 more
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Temperature-responsive hydrogel with a lower critical solution temperature (LCST) close to human body temperature was prepared. Crosslinked N-isopropylacrylamide (NIPAAm) and acrylic acid (AAc) copolymer networks were synthesized at various monomer ratios in the presence of ammonium persulfate (APS), N,N′-methylenebisacrylamide (NMBA) and N,N,N′,N ...
Shingjiang Jessie Lue +2 more
openaire +1 more source