Synthesis and characterization of TiO2 nanotube supported Rh-nanoparticle catalysts for regioselective hydroformylation of vinyl acetate

RSC Advances ◽  
2014 ◽  
Vol 4 (107) ◽  
pp. 62215-62222 ◽  
Author(s):  
Yukun Shi ◽  
Xiaojing Hu ◽  
Baolin Zhu ◽  
Shurong Wang ◽  
Shoumin Zhang ◽  
...  
Keyword(s):  
Vinyl Acetate ◽  
Tio2 Nanotube ◽  
Synthesis And Characterization ◽  
Borohydride Reduction ◽  
Reduction Procedure ◽  
Nanoparticle Catalysts ◽  
Alcohol Reduction ◽  
Rhodium Nanoparticle

Three procedures: the impregnation-borohydride reduction procedure, the impregnation-alcohol reduction procedure and the impregnation-photoreducing procedure, were utilized for preparing TiO2 nanotube supported rhodium nanoparticle catalysts.

Synthesis and Characterization of Polyindole/Poly(vinyl acetate) Conducting Composites

2008 ◽  
Vol 45 (3) ◽  
pp. 205-211 ◽  
Author(s):  
Özay Eraldemir ◽  
Bekir Sari ◽  
Ayşegül Gök ◽  
Halil İbrahim Ünal
Keyword(s):  
Vinyl Acetate ◽  
Synthesis And Characterization ◽  
Conducting Composites

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.

Synthesis and Characterization of Poly (Vinyl Acetate)/MMT Nanocomposite Flame Retardant

2014 ◽  
Vol 4 (3) ◽  
pp. 90
Author(s):  
Mamata Sahu ◽  
Ramakanta Samal ◽  
Trinath Biswal ◽  
Prafulla Sahoo
Keyword(s):  
Flame Retardant ◽  
Vinyl Acetate ◽  
Synthesis And Characterization
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