Selective reaction of hexafluoropropylene oxide with perfluoroacyl fluorides
申请人:3M Innovative Properties Company
公开号:US20040116742A1
公开(公告)日:2004-06-17
A method is provided for reacting hexafluoropropylene oxide (HFPO) with a perfluoroacyl fluorides according to the formula X—R
f
—COF (II) to selectively produce a monoaddition product according to the formula X—R
f
—CF
2
—O—CF(CF
3
)COF (I), wherein selectivity for the monoaddition product over the biaddition product is 90% or greater or more typically 95% or greater. A continuous or repeated-batch process is provided comprising the steps of: a) providing a mixture of X—R
f
—COF (II), a fluoride salt, and a polar solvent; b) adding hexafluoropropylene oxide (HFPO) in an amount such that X—R
f
—COF remains in molar excess of HFPO by at least 10% and reacting X—R
f
—COF with HFPO; c) separating unreacted X—R
f
—COF from a mixture of addition products of hexafluoropropylene oxide (HFPO) and X—R
f
—COF; and d) repeating step a) using unreacted X—R
f
—COF separated in step c).
Ionic photoacid generators with segmented hydrocarbon-fluorocarbon sulfonate anions
申请人:3M Innovative Properties Company
公开号:US20040087690A1
公开(公告)日:2004-05-06
Photoacid generator salts comprising photoactive cationic moieties and segmented, highly fluorinated-hydrocarbon anionic moieties are disclosed which provide high photoacid strength and can be tailored for solubility and polarity. The present invention further relates to photoacid generators as they are used in photoinitiated acid-catalyzed processes for uses such as photoresists for microlithography and photopolymerization.
Ionic photoacid generators with segmented hydrocarbonfluorocarbon sulfonate anions
申请人:Lamanna M. William
公开号:US20050158655A1
公开(公告)日:2005-07-21
Photoacid generator salts comprising photoactive cationic moieties and segmented, highly fluorinated-hydrocarbon anionic moieties are disclosed which provide high photoacid strength and can be tailored for solubility and polarity. The present invention further relates to photoacid generators as they are used in photoinitiated acid-catalyzed processes for uses such as photoresists for microlithography and photopolymerization.
[EN] ALLYL ETHER-TERMINATED FLUOROALKANESULFINIC ACIDS, SALTS THEREOF, AND A METHOD OF MAKING THE SAME<br/>[FR] ACIDES FLUORO-ALKYL SULFINIQUES TERMINÉS PAR ALLYL ÉTHER ET LEURS SELS