Synthèse des isocyanates de 2-F-alkyléthyle

Jouani, A.M.; Szönyi, F.; Cambon, A.

doi:10.1016/s0022-1139(00)80183-9

Cited by 36 publications

(10 citation statements)

References 9 publications

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“…3-Perfluoroalkylpropanoic acids were obtained by carboxylation of the corresponding organomagnesium compound of 2-perfluoroalkylethyl iodide. 10 The intermediate (2,3-dihydrothieno[3,4-b] [1,4]dioxin-2-yl)methanol was obtained in six steps from thiodiglycolic acid 11 with an overall yield of 34% and 2-(1H-pyrrol-1-yl)ethanol by action of the pyrrolyl potassium salt on 2-chloroethanol. 12 9-Fluorenemethanol was commercially available.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of Perfluorinated Conjugated Polymers Based on Polyethylenedioxythiophene, Polypyrrole, and Polyfluorene. Toward Surfaces with Special Wettabilities

2008

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The electrochemical deposition of organic materials is a convenient and straightforward method that affords rough films in mild conditions. The presence of fluorinated chains covalently attached on the polymer backbone allows the control of the second criterion which plays a role on the wetting properties of the surface, that is, the chemical composition. By modification of the nature of the polymer, films with different surface energies were obtained. Thus, original semifluorinated polypyrrole (PPy- RF n ), polyfluorene (PFl- RF n ), and polyethylenedioxythiophene (PEDOT- RF n ) have been chemically and electrochemically synthesized and characterized. On one hand, the chemical polymerization affords highly fluorinated soluble polymers. Soluble PFl- RF n exhibits blue fluorescence in solution while soluble PEDOT- RF n presents optical properties similar to those of PEDOT. Consequently, they represent interesting candidates for optical devices (OLEDs for PFl- RF n , electrochromic materials for PEDOT- RF n ). On the other hand, surface properties have been investigated on the electroformed polymers by goniometry and microscopy. Fluorinated surfaces of electrodeposited polypyrrole, like polythiophene, give birth to high hydrophobic and oleophobic surfaces, while the use of polyethylenedioxythiophene as the polymer increases sufficiently the surface energy to get combined superhydrophobicity and superoleophilicity. The influence of the chemical composition is discussed through the comparison of the wetting properties of polyethylenedioxythiophene and semifluorinated polythiophene and polyethylenedioxythiophene.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of Perfluorinated Conjugated Polymers Based on Polyethylenedioxythiophene, Polypyrrole, and Polyfluorene. Toward Surfaces with Special Wettabilities

2008

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“…Unless specified as dry, the solvents were unpurified reagent grade. The procedure for the preparation of 2-F-alkylpropanoic acids are described elsewhere [17]. Perfluorinated raw materials were given by Atofina.…”

Section: Methodsmentioning

confidence: 99%

Preparation and Liquid Crystalline Behaviour of a Series of Semifluorinated Allylic Monomers

Givenchy

Guittard

Caillier

et al. 2005

Molecular Crystals and Liquid Crystals

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A series of smectic liquid-crystalline 4,4 0 -biphenyl derivatives incorporating a perfluorinated segment and an allylic part have been prepared and their mesomorphic properties investigated. The preparation of these compounds has been done from 2-F-butylethyl iodide, the 2-F-hexylethyl iodide or the 2-F-octylpropanoic acid. The physical properties of these novel fluorinated materials are commented and illustrated in comparison with four homologous allylic series previously described. The choice of the molecular design of these monomers allows us to obtain dimorphism and high mesomorphic range determined from differential thermal analysis and the light microscopy.

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“…etc. could be extended to ETFE cotelomer iodides with minor modification [33][34][35][36][37][38]. However, there are major difficulties associated with, particularly with regard to the poor solubility of the ETFE cotelomer iodides in some of the organic solvents used as medium for these transformations.…”

Section: Surface Protection Derivatives From Etfe Cotelomer Iodidesmentioning

confidence: 99%

Ethylene-tetrafluoroethylene (ETFE) cotelomer iodides and their transformation to surface protection intermediates

Qiu¹,

Raghavanpillai²,

Brown³

et al. 2015

Journal of Fluorine Chemistry

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Synthèse des isocyanates de 2-F-alkyléthyle

Cited by 36 publications

References 9 publications

Synthesis and Properties of Perfluorinated Conjugated Polymers Based on Polyethylenedioxythiophene, Polypyrrole, and Polyfluorene. Toward Surfaces with Special Wettabilities

Synthesis and Properties of Perfluorinated Conjugated Polymers Based on Polyethylenedioxythiophene, Polypyrrole, and Polyfluorene. Toward Surfaces with Special Wettabilities

Preparation and Liquid Crystalline Behaviour of a Series of Semifluorinated Allylic Monomers

Ethylene-tetrafluoroethylene (ETFE) cotelomer iodides and their transformation to surface protection intermediates

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