The comparison of thermal stability of some hydrofluoroethers and hydrofluoropolyethers

Marchionni, G.; Petricci, Silvia; Guarda, P.A.; Spataro, Gianfranco; Pezzin, G.

doi:10.1016/j.jfluchem.2004.01.027

Cited by 22 publications

(21 citation statements)

References 12 publications

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“…Lastly, due to the presence of the above-mentioned alkoxy-groups as ending groups, they show good solvent properties with several organic liquids, such as ketones and alcohols [5]. All these appealing properties of DA-FPEs make them excellent candidates as CFC, perfluocarbons and halons substitutes in a number of applications, like foaming and fire extinguishing agents, cleaning agents for sophisticated electronic devices and heat transfer fluids [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

Navarrini

Spataro

et al. 2012

Applied Sciences

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Abstract:The α,ω-dialkoxyfluoropolyethers (DA-FPEs) characterized by the structure R H O(CF 2 CF 2 O) n (CF 2 O) m R H have been developed as a new class of environmentally friendly hydrofluoroethers (HFEs) suitable as solvents, long-term refrigerants, cleaning fluids, and heat transfer fluids. Synthetic methodologies for DA-FPEs described here consist of radical-initiated oxypolymerization of olefin, peroxy-elimination reaction in peroxidic perfluoropolyethers (P-PFPEs) and further chemical modification of α,ω-diacylfluoride PFPE. The physical properties of selected α,ω-dimethoxyfluoropolyethers (DM-FPEs) have been evaluated and compared with analogous hydrofluoropolyethers (HFPEs) having -OCF 2 H as end-groups. Atmospheric implications and global warming potentials (GWPs) of selected DA-FPEs are also considered.

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Section: Introductionmentioning

confidence: 99%

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

Navarrini

Spataro

et al. 2012

Applied Sciences

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“…One promising class of the proposed alternatives is the hydrofluoroethers Correspondence to: S. Dhanya; e-mail: sdhanya@barc.gov.in. c 2010 Wiley Periodicals, Inc. [1,2]. These compounds have the advantage of being completely benign to the ozone layer due to the absence of any Cl atom in their structure.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study of the gas‐phase reaction of hydroxyl radical with CF₃CH₂OCH₂CF₃ using the laser photolysis–laser induced fluorescence method

Sengupta

Indulkar

Kumar

et al. 2010

Int J of Chemical Kinetics

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The laser photolysis-laser-induced fluorescence method was used for measuring the kinetic parameters of the reaction of OH radicals with CF 3 CH 2 OCH 2 CF 3 (2,2,2-trifluoroethyl ether), in the temperature range of 298-365 K. The bimolecular rate coefficient at 298 K, k I I (298), was measured to be (1.47 ± 0.03) × 10 −13 cm 3 molecule −1 s −1 , and the temperature dependence of k I I was determined to be (4.5 ± 0.8) × 10 −12 exp[−(1030 ± 60)/T] cm 3 molecule −1 s −1 . The error quoted is 1σ of the linear regression of the respective plots. The rate coefficient at room temperature is very close to the average of the three previous measurements, whereas the values of E a /R and the A-factor are higher than the two previously reported values. C 2010

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“…A new class of hydrofluoropolyethers, the a, v-dimethoxyfluoropolyethers (DM-FPEs), having the copolymeric structure CH 3 O(CF 2 C-F 2 O) n (CF 2 O) m CH 3 (where ''n'' and ''m'' are defined values), has been designed and developed by Solvay-Solexis as potential CFC replacement compounds [1][2][3][4]. They do not contain chlorine, and hence, do not contribute to the catalytic destruction of stratospheric ozone.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the incorporation of two -OCH 3 groups provides reactive sites for OH radical attack, which limits the atmospheric lifetime and hence their global warming potentials [2,[5][6][7][8]. Some papers and patents concerning the properties and the applications of DM-FPEs have been recently published [1][2][3][4]9].…”

Section: Introductionmentioning

confidence: 99%

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Physical properties of four α, ω-dimethoxyfluoropolyethers

Marchionni¹,

Avataneo²,

Patto³

et al. 2005

Journal of Fluorine Chemistry

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The comparison of thermal stability of some hydrofluoroethers and hydrofluoropolyethers

Cited by 22 publications

References 12 publications

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

Kinetic study of the gas‐phase reaction of hydroxyl radical with CF₃CH₂OCH₂CF₃ using the laser photolysis–laser induced fluorescence method

Physical properties of four α, ω-dimethoxyfluoropolyethers

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The comparison of thermal stability of some hydrofluoroethers and hydrofluoropolyethers

Cited by 22 publications

References 12 publications

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

An Environmentally Friendly Class of Fluoropolyether: α,ω-Dialkoxyfluoropolyethers

Kinetic study of the gas‐phase reaction of hydroxyl radical with CF3CH2OCH2CF3 using the laser photolysis–laser induced fluorescence method

Physical properties of four α, ω-dimethoxyfluoropolyethers

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Kinetic study of the gas‐phase reaction of hydroxyl radical with CF₃CH₂OCH₂CF₃ using the laser photolysis–laser induced fluorescence method