Thermodynamic analysis of the phase equilibrium of the polystyrene‐poly(vinyl methyl ether) system

2020 ◽  
Vol 138 (4) ◽  
pp. 49717
Author(s):  
Uliana V. Nikulova ◽  
Anatoly E. Chalykh
Keyword(s):  
Phase Equilibrium ◽  
Thermodynamic Analysis ◽  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Ether System

scholarly journals Phase Equilibrium and Interdiffusion in Poly(Vinyl Methyl Ether)-Water System

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2445 ◽  
Author(s):  
Uliana V. Nikulova ◽  
Anatoly E. Chalykh
Keyword(s):  
Phase Equilibrium ◽  
Methyl Ether ◽  
Diffusion Coefficients ◽  
Water System ◽  
State Diagram ◽  
Pair Interaction ◽  
Dilute Solution ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Kinetics Of

The phase state diagram of the poly(vinyl methyl ether)-water system in a wide concentration range was obtained by the optical interferometry method. It was shown that this system was characterized by a complicated phase equilibrium with two lower critical solution temperatures, one of which was located in the concentrated region at 21 °C, and the other one in the region of a dilute solution at 31 °C. In the framework of the Flory–Huggins theory, pair interaction parameters were calculated for different parts of the binodal curves, and an attempt was made to reverse simulate the diagram in different conditions. It was suggested that the unusual character of the diagram was associated with the formation of a complicated complex between PVME and water in the middle region of the compositions. Concentration profiles for different temperatures were constructed. For the first time for this system, the numerical values of the diffusion coefficients of poly(vinyl methyl ether) (PVME) into water and water in PVME were obtained. Concentration and temperature dependences of diffusion coefficients were constructed and analyzed. The kinetics of water sorption in PVME was plotted, the clustering integral was calculated, and the approximate number of molecules in a water cluster was estimated. It was shown that in the dilute solution region upon passing through the binodal curve, the interphase disappeared immediately, and the remaining fluctuation of the concentration decreased in size with time. The kinetics of this process was estimated from the change in the size of such a particle.

Interdiffusion in a polystyrene-poly(vinyl methyl ether) system

2011 ◽  
Vol 53 (9) ◽  
pp. 811-819 ◽  
Author(s):  
A. E. Chalykh ◽  
U. V. Nikulova
Keyword(s):  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Ether System

The effect of deuteration on the phase equilibrium of the polystyrene/poly(vinyl methyl ether) blend system

1983 ◽  
Vol 21 (1) ◽  
pp. 159-162 ◽  
Author(s):  
H. Yang ◽  
G. Hadziioannou ◽  
R. S. Stein
Keyword(s):  
Phase Equilibrium ◽  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether

Effect of Molecular Weight on the Mutual Diffusion Process in Polystyrene/Poly(Vinyl Methyl Ether) System

2005 ◽  
Vol 25 (6) ◽  
Author(s):  
R. Levesque ◽  
S. Vaudreuil ◽  
M. Bousmina ◽  
S. Kaliaguine
Keyword(s):  
Molecular Weight ◽  
Diffusion Process ◽  
Methyl Ether ◽  
Mutual Diffusion ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Ether System

Deformation-Induced Phase Separation in Blends of Poly(ε-caprolactone) with Poly(vinyl methyl ether)

2011 ◽  
Vol 44 (17) ◽  
pp. 7062-7065 ◽  
Author(s):  
Zhiyong Jiang ◽  
Lianlian Fu ◽  
Yingying Sun ◽  
Xiuhong Li ◽  
Yongfeng Men
Keyword(s):  
Phase Separation ◽  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether

Effect of blend composition on diffusivity and solubility of small molecules in polystyrene/poly(vinyl methyl ether) blends

2007 ◽  
Vol 45 (15) ◽  
pp. 2071-2082 ◽  
Author(s):  
J. Román Galdámez ◽  
Lourdes V. Serna ◽  
J. Larry Duda ◽  
Ronald P. Danner
Keyword(s):  
Small Molecules ◽  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Blend Composition

Characterization of Structural Changes of Poly(vinyl methyl ether) γ-Irradiated in Diluted Aqueous Solutions

Langmuir ◽  
2004 ◽  
Vol 20 (7) ◽  
pp. 2883-2889 ◽  
Author(s):  
Claudia Querner ◽  
Thomas Schmidt ◽  
Karl-Friedrich Arndt
Keyword(s):  
Aqueous Solutions ◽  
Methyl Ether ◽  
Structural Changes ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether

PHASE BEHAVIORS IN BLENDS OF POLY(VINYL METHYL ETHER) AND POLY(STYRENE-CO-BUTADIENE)

1997 ◽  
Vol 33 (7) ◽  
pp. 1113-1116 ◽  
Author(s):  
AHN JONG-HYUN ◽  
KANG CHANG-KWON ◽  
ZIN WANG-CHEOL
Keyword(s):  
Methyl Ether ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Phase Behaviors
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