Dilute solution behavior of partly hydrolyzed poly(vinyl acetate) in selective solvent mixtures and the pervaporation performance of their membranes in benzene/cyclohexane separation

2006 ◽  
Vol 279 (1-2) ◽  
pp. 418-423 ◽  
Author(s):  
Y.X. Bai ◽  
J.W. Qian ◽  
H.B. Sun ◽  
Q.F. An
Keyword(s):  
Vinyl Acetate ◽  
Solvent Mixtures ◽  
Dilute Solution ◽  
Selective Solvent ◽  
Solution Behavior

A picture of dilute solution behavior of polymers through polyelectrolyte simulation

2013 ◽  
Vol 139 (20) ◽  
pp. 204902 ◽  
Author(s):  
Hiromi Yamakawa ◽  
Takenao Yoshizaki ◽  
Daichi Ida
Keyword(s):  
Dilute Solution ◽  
Solution Behavior

Diffusion of Binary Non-Solvent Mixtures in Polymers: Aqueous Ethanol Solutions in Poly(Vinyl Acetate)

2002 ◽  
Vol 56 (10) ◽  
pp. 1245-1250 ◽  
Author(s):  
Denise Wade Rafferty ◽  
Jack L. Koenig
Keyword(s):  
Vinyl Acetate ◽  
Initial Rate ◽  
Deuterium Oxide ◽  
Weight Percent ◽  
Pure Liquid ◽  
Solvent Mixtures ◽  
Ideal Behavior ◽  
Pure Ethanol ◽  
Ft Ir ◽  
Diffusion Rates

The diffusion of binary non-solvent mixtures of ethanol and deuterium oxide (D2O) into poly(vinyl acetate) (PVAc) was studied by FT-IR imaging. Initial diffusion rates were calculated for all mixtures from the concentration profiles, and a positive deviation from ideal behavior was observed; higher initial diffusion rates and greater degrees of swelling were observed for the solvent mixtures than for the pure liquids. PVAc swells to various extents in pure deuterium oxide, 20, 30, and 40 weight percent (wt %) ethanol, and pure ethanol. Dissolution of PVAc occurs for 50, 60, 70, 80, 90, and 95 wt % ethanol–water mixtures. The lowest initial diffusion rate occurred for pure deuterium oxide and the highest initial rate for 80 wt % ethanol. The spectral data suggest that ethanol and water form a complex that solvates PVAc more effectively than either pure liquid. Furthermore, the data indicate that sufficient quantities of this complex for effective dissolution are formed above 40 wt % ethanol, while optimum quantities occur between 70 and 90 wt % (50 to 80 mole %) ethanol.

Dilute solution behavior of a cationic polyelectrolyte

1982 ◽  
Vol 27 (11) ◽  
pp. 4467-4470 ◽  
Author(s):  
Carlos Kienzle-Sterzer ◽  
Dolores Rodriguez-Sanchez ◽  
Chokyun Rha
Keyword(s):  
Cationic Polyelectrolyte ◽  
Dilute Solution ◽  
Solution Behavior

Halato-telechelic polymers. 4. Synthesis and dilute-solution behavior

1982 ◽  
Vol 15 (3) ◽  
pp. 920-927 ◽  
Author(s):  
G. Broze ◽  
R. Jerome ◽  
P. Teyssie
Keyword(s):  
Dilute Solution ◽  
Telechelic Polymers ◽  
Solution Behavior
Sign in / Sign up

Export Citation Format

Share Document