Synthesis of Linear Poly(tetrafluoroethylene-co-vinyl acetate) in Carbon Dioxide

2000 ◽  
Vol 33 (5) ◽  
pp. 1682-1685 ◽  
Author(s):  
Robert D. Lousenberg ◽  
Molly S. Shoichet
Keyword(s):  
Carbon Dioxide ◽  
Vinyl Acetate ◽  
Linear Poly

Synthesis and Solubility of Linear Poly(tetrafluoroethylene-co-vinyl acetate) in Dense CO2:  Experimental and Molecular Modeling Results

2004 ◽  
Vol 37 (20) ◽  
pp. 7799-7807 ◽  
Author(s):  
Bilal Baradie ◽  
Molly S. Shoichet ◽  
Zhihao Shen ◽  
Mark A. McHugh ◽  
Lei Hong ◽  
...  
Keyword(s):  
Molecular Modeling ◽  
Vinyl Acetate ◽  
Linear Poly

Synthesis and characterization of novel polysiloxane-grafted fluoropolymers

2005 ◽  
Vol 83 (6-7) ◽  
pp. 553-558 ◽  
Author(s):  
Bilal Baradie ◽  
Patricia HM Lai ◽  
Molly S Shoichet
Keyword(s):  
Carbon Dioxide ◽  
Thermal Stability ◽  
Supercritical Carbon Dioxide ◽  
Vinyl Acetate ◽  
Vinyl Alcohol ◽  
Contact Angles ◽  
Synthesis And Characterization ◽  
Water Contact ◽  
Degradation Temperature

Fluorosilicone polymers combine the properties of both fluorocarbons and siloxanes, yielding materials with unique properties. Novel crosslinked fluorosilicone polymers were synthesized by grafting diisocyanate-terminated polydimethylsiloxane (PDMS) to hydroxyl-functionalized fluoropolymers of poly(tetrafluoroethylene-co-vinyl acetate-co-vinyl alcohol) (PTFE-VAc-VA), as confirmed by elemental bulk and surface analysis. The fluorosilicone polymers containing 34 mol% of TFE were thermally stable with a degradation temperature of 267 °C. Fluorosilicone films were found to be more hydrophobic than the parent, non-grafted fluoropolymers; dynamic advancing and receding water contact angles for PTFE-co-VAc-co-VA-g-PDMS were 104° ± 1° and 61° ± 1°, respectively, whereas for PTFE-co-VAc they were 90° ± 2° and 59° ± 2°. The combined properties of thermal stability and hydrophobicity suggest that these fluorosilicones may be useful for coating and paint applications.Key words: fluoropolymers, fluorosilicone, polydimethylsiloxane, supercritical carbon dioxide.

Cobalt-Mediated Radical Polymerization of Vinyl Acetate and Acrylonitrile in Supercritical Carbon Dioxide

2016 ◽  
Vol 37 (6) ◽  
pp. 539-544 ◽  
Author(s):  
Anthony Kermagoret ◽  
Ngoc Do Quyen Chau ◽  
Bruno Grignard ◽  
Daniela Cordella ◽  
Antoine Debuigne ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Radical Polymerization ◽  
Vinyl Acetate ◽  
Supercritical Carbon

Solubilities and diffusion coefficients of carbon dioxide in poly(vinyl acetate) and polystyrene

2001 ◽  
Vol 19 (2) ◽  
pp. 187-198 ◽  
Author(s):  
Yoshiyuki Sato ◽  
Tadao Takikawa ◽  
Shigeki Takishima ◽  
Hirokatsu Masuoka
Keyword(s):  
Carbon Dioxide ◽  
Vinyl Acetate ◽  
Diffusion Coefficients ◽  
And Diffusion
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