Kinetics of phase separation in binary mixtures of polystyrene and poly(vinyl methyl ether) as studied by fluorescence emission of labeled polystyrene

1991 ◽  
Vol 24 (4) ◽  
pp. 867-871 ◽  
Author(s):  
Fadhel Ben Cheikh Larbi ◽  
Jean Louis Halary ◽  
Lucien Monnerie
Keyword(s):  
Phase Separation ◽  
Binary Mixtures ◽  
Methyl Ether ◽  
Fluorescence Emission ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Kinetics Of

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

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.

scholarly journals Phase Separation and Network Formation in Poly(vinyl methyl ether)/Water Solutions

2001 ◽  
Vol 33 (5) ◽  
pp. 399-403 ◽  
Author(s):  
Yanyin Yang ◽  
Fang Zeng ◽  
Xiaoli Xie ◽  
Zhen Tong ◽  
Xinxing Liu
Keyword(s):  
Phase Separation ◽  
Methyl Ether ◽  
Network Formation ◽  
Vinyl Methyl ◽  
Water Solutions ◽  
Vinyl Methyl Ether

Volume change kinetics of temperature-sensitive poly(vinyl methyl ether) gel

Polymer ◽  
1992 ◽  
Vol 33 (5) ◽  
pp. 990-995 ◽  
Author(s):  
B.G. Kabra ◽  
M.K. Akhtar ◽  
S.H. Gehrke
Keyword(s):  
Methyl Ether ◽  
Volume Change ◽  
Temperature Sensitive ◽  
Vinyl Methyl ◽  
Vinyl Methyl Ether ◽  
Kinetics Of
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