Results 251 to 260 of about 1,978,744 (337)

Dynamical heterogeneity in the gelation process of a polymer solution with a lower critical solution temperature

Soft Matter, 2021
The gelation of a hydrophobically modified hyaluronic acid aqueous solution which shows a lower critical solution temperature of about 25 °C was investigated by multi-particle tracking microrheology.
Yingkang Dai, Runlin Zhang, Weixiang Sun, Tao Wang, Yunhua Chen, Zhen Tong   +5 more
openaire   +2 more sources

Hydration and Dynamic Behavior of Poly(N-isopropylacrylamide)s in Aqueous Solution:  A Sharp Phase Transition at the Lower Critical Solution Temperature

Journal of the American Chemical Society, 2006
Toshiyuki Shikata, Toshiyuki Shikata*
exaly   +2 more sources

Upper and Lower Critical Solution Temperatures in Polystyrene Solutions. II

Macromolecules, 1973
Abstract Upper and lower critical solution temperatures have been determined for solutions of polyethylene in n-butyl acetate and n-amyl acetate over the molecular weight range of M η = 1·36 × 10 4 to 17·5 × 10 4 . Polyethylene solution in n-butyl acetate displays a smaller miscibility region than that of the polyethylene/n-amyl acetate system,
N. Kuwahara, S. Saeki, T. Chiba, M. Kaneko   +3 more
openaire   +1 more source

Prediction of the lower critical solution temperature of poly(N-isopropylacrylamide-co-methoxy triethyleneglycol acrylate) in aqueous salt solutions using support vector regression

, 2020
This study investigates the lower critical solution temperature (LCST) behavior of a novel thermosensitive NIPA-co-MTGA polymer comprising N-isopropylacrylamide (NIPA) and methoxy triethyleneglycol acrylate (MTGA) by inducing hydrophilic/hydrophobic ...
Hideaki Tokuyama, Haruka Mori, Ryosuke Hamaguchi, Gakuto Kato   +3 more
semanticscholar   +1 more source

Thermodynamic framework for switching the lower critical solution temperature of thermo-sensitive particle gels in aqueous solvent

, 2020
Switching the lower critical solution temperatures (LCSTs) of thermo-sensitive particle gels including poly(N-isopropylacrylamide) (PNIPAM), poly(N-diethylacrylamide) (PNDEAM), and poly(N-vinylcaprolactam) (PNVCL) was investigated in various aqueous ...
C. Lee, Y. Bae
semanticscholar   +1 more source

Lower and upper critical solution temperatures of binary polymeric solutions

Fluid Phase Equilibria, 2016
Abstract The phase behavior of binary polymeric solutions such as lower and upper critical solution temperatures has an important role in many polymeric processes. For theoretical investigation on the prediction of these temperatures, a substantial number of data points on binary polymeric solutions were collected from literature and used to present ...
Ayoub Ejraei, Samira Shirvani, Mohammad Ali Aroon, Milad Asgarpour Khansary, Sepideh Khalaj   +4 more
openaire   +1 more source

Thermoresponsive dendronized polymers with tunable lower critical solution temperatures

Chemical Communications, 2008
A series of first (PG 1) and second generation (PG 2) dendronized polymers were synthesized which exhibit fast and sharp phase transitions with negligible hystereses in aqueous solutions and apparent lower critical solution temperatures (LCSTs) in the range of 33-49 degrees C.
Li W, Zhang A, Schlüter AD
openaire   +3 more sources

A comparison of lower critical solution temperatures of some polymer solutions

Polymer, 1967
Abstract The Lower Critical Solution Temperature (LCST) in polymer solutions is discussed in terms of the Prigogine solution theory which predicts an LCST below the vapour-liquid critical temperature of the solvent (T c ). The interval between these two temperatures depends on differences in chain length and ‘flexibility’ of the polymer and solvent ...
D. Patterson, G. Delmas, T. Somcynsky
openaire   +1 more source

Atomistic Molecular Dynamics Simulations of the Lower Critical Solution Temperature Transition of Poly( N-vinylcaprolactam) in Aqueous Solutions.

Journal of Physical Chemistry B, 2019
Poly( N-vinylcaprolactam) (PVCL) is a thermo-responsive polymer, which exhibits a lower critical solution temperature (LCST) in an aqueous solution. The LCST of this hydrophilic-to-hydrophobic transition is found to be strongly dependent on the salt-type
Xiaoquan Sun, X. Qian
semanticscholar   +1 more source

Polymer fractionation at a lower critical solution temperature phase boundary

Polymer, 1966
Abstract The influence of pressure on a lower critical solution temperature is much more pronounced than on an upper critical solution temperature. Accordingly it is possible to control phase separation at a LCST phase boundary under isothermal conditions by merely adjusting the pressure on the system.
C. H. Baker, C. S. Clemson, G. Allen
openaire   +1 more source