369371-42-6Relevant articles and documents
Process for preparing fluorohalogenethers
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Page 5, (2008/06/13)
A process for preparing (per)fluorohalogenethers having general formula (II): R′CF2OCFA-CA′F2 ??(II) wherein:— A and A′, equal to or different from each other, are H, Cl or Br but they cannot be both H; R′ has the following meanings: RO—, wherein R is a (per)fluorinated substituent, selected from the following groups: linear or branched C1-C20 alkyl; C3-C7 cycloalkyl; aromatic, C6-C10 arylalkyl or alkylaryl; C5-C10 heterocyclic or alkylheterocyclic; or a perfluoropolyether substituent T—Rf— wherein T=—OCF2OCFA-CA′F2, —OCF2XI, wherein XI=F, CF3, Cl; Rf is a perfluorooxyalkylene chain; by reaction of carbonyl compounds having formula R″COF (III) wherein R″=RO—, or R″=Q-Rf— wherein Q=—OCOF, —OCF2XI; in liquid phase with elemental fluorine and with olefinic compounds having formula CAF=CA′F (IV), at temperatures from ?120° C. to ?20° C.
New perfluorovinylethers through the bis(fluoroxy)difluoromethane (BDM) chemistry
Navarrini, Walter,Corti, Sandra
, p. 189 - 197 (2007/10/03)
In the present work we give an overview of the CF2(OF) 2 radical reactivity and report the synthesis of new perfluorovinylethers. CF2=CF-OCF2OCF2 CF3 and CF2=CF-OCF2OCF2 CF2OCF3 are prepared in a semi-continuous methodology starting from CF2(OF)2. These highly reactive vinylethers are characterized by the OCF2O group directly bonded to the insaturation. For this reason they are excellent candidates for the preparation of very low Tg perfluororubbers.
Fluorovinyl ethers and polymers obtainable therefrom
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, (2008/06/13)
Fluorovinyl ethers having the formula CFX═CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per)fluoroalkyl group, or a C2-C6, linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X═F, H; and homopolymers or polymers obtainable polymerizing said Fluorovinyl ethers with at least another polymerizable monomer.
Fluorovinylethers and polymers obtainable therefrom
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, (2008/06/13)
Fluorovinylethers having the formula CFX=CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per)fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X = F, H; and homopolymers or polymers obtainable polymerizing said fluorovinylethers with at least another polymerizable monomer.