Results 261 to 270 of about 1,776,297 (283)

Upper and lower critical solution temperatures in 1‐octanol solutions of polyethylene

British Polymer Journal, 1983
AbstractCloud points of 1‐octanol solutions of four linear polyethylene samples having different molecular weights were measured visually in both regions of the upper and lower critical solution temperatures (UCST and LCST). From the (temperature, polymer weight fraction) phase diagrams drawn, the UCST and LCST were determined.
Yoichiro Muraoka, Hiroshi Inagaki, Hidematsu Suzuki   +2 more
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Lower critical solution temperature (LCST) polymer solution for clear/cloud glazing applications

Journal of Applied Polymer Science, 1994
AbstractAn aqueous‐based clear/cloud solution was developed using poly(vinyl methyl ether) and an antifreeze mixture of ethylene and propylene glycols. The solution has a controllable cloud point from 15 to 90°C, freeze protection to −46°C, and a density that prevents the precipitated polymer from settling and is fairly stable to UV degradation.
D. P. Gundlach, K. A. Burdett
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Lower critical solution temperatures of N -substituted acrylamide copolymers in aqueous solutions

Polymer, 1999
Abstract Several series of copolymers were prepared from N-substituted acrylamides by free radical polymerization in solution. We have selected a group of monomers with varying degree of hydrophilicity including acrylamide, N-ethylacrylamide, N,N-dimethylacrylamide, N,N-diethylacrylamide, and N-tert-butylacrylamide.
H.Y. Liu, X.X. Zhu
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Separating polymer solutions using high pressure lower critical solution temperature (LCST) phenomena

Polymer Engineering & Science, 1985
AbstractA lower critical solution temperature (LCST) phase split can be used as an alternative to steam stripping for separating polymer solutions, By adding a supercritical fluid (SCF) additive to the polymer solution, the LCST can be lowered, thus minimizing the possibility of polymer degradation and also reducing the thermal energy requirements for ...
Alan K. McClellan, Mark A. McHugh
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Preparation of temperature-sensitive polymer particles having different lower critical solution temperatures

Colloid & Polymer Science, 1996
Preparation of temperature-sensitive core-shell composite polymer particles was carried out by seeded emulsion copolymerization of dimethylaminoethyl methacrylate and ethylene glycol dimethacrylate with submicron-sized polystyrene seed particles as core.
M. Okubo, H. Ahmad, M. Komura
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Thermodynamic solution properties of three polymers exhibiting lower critical solution temperature

Polymer, 1969
Abstract The second virial coefficients of cellulose-, amylose- and polyvinyl-carbanilates in several solvents were measured as a function of the temperature. In three cases theta temperatures and phase separations were observed on heating the solutions.
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Hydroxyethyl Acrylate-Based Polymeric Amphiphiles Showing Lower Critical Solution Temperature

Journal of Macromolecular Science, Part A, 2015
Poly(2-hydroxyethyl acrylate-co-methylmethacrylate) (P(HEA-MMA)) and poly(2-hydroxyethyl acrylate-co-butylmethacrylate) (P(HEA-BMA)) were prepared as thermo-sensitive amphiphilic polymers. When HEA was copolymerized with MMA so that MMA content was 2.1% (mol/mol), the optical density of P(HEA-MMA) solution began to increase around 37°C.
Hong Zhang, Jin-Chul Kim
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The Efficiency of Polymer Fractionation at Lower Critical Solution Temperatures

British Polymer Journal, 1978
AbstractThe efficiency of a single fractionation step (i.e. of the partition of a given polymer sample between the coexisting phases which form when its solution demixes) is governed by the variation of the mass ratio of the individual P‐mers with chain length.
B. A. Wolf, H. F. Bieringer, J. W. Breitenbach   +2 more
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Hydrophobically modified polyglycidol - the control of lower critical solution temperature

Polymer Bulletin, 2003
Polymers of glycidol (2,3-epoxypropanol-1) of different molar masses (between 2˙104 and 2˙105) and chain topology (linear and comb-like) were synthesised and used to obtain a series of temperature responsive water-soluble poly(glycidol-co-glycidol acetate)s.
Alicja Utrata, Wojciech Walach, Andrzej Dworak, Barbara Trzebicka   +3 more
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Transport Functions of Polymers with a Lower Critical Solution Temperature

Polymer Science, Series B, 2019
Polymeric derivatives of proteins are synthesized by the reaction of the amino groups of proteins with N,N-diethylacrylamides containing terminal carboxyl groups, having a molecular weight of (13–62) × 103, and exhibiting a lower critical solution temperature of 34–29°C. It is shown for the first time that the lower critical solution temperature of the
I. L. Valuev, L. V. Vanchugova, L. I. Valuev   +2 more
openaire   +1 more source