Techniques for the preparation of highly fluorinated polyethers

Details Techniques for the preparation of highly fluorinated polyethers Techniques for the preparation of highly fluorinated polyethers

C - Chemistry, Metallurgy

08

G

C08G 65/40 (2006.01) C08G 75/23 (2006.01)

Patent

CA 2487649

A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit: formula (I), wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, .alpha..omega.- perfluoroalkylene, oxadiazole, and Y is 4,4'-(hexafluoroisopropylidene)- diphenyl, 4,4'-isopropylidene diphenyl, 3,3'-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone in the presence of a dehydrating agent and a polar aprotic solvent is disclosed. Polymers resulting from the process show good promise as new passive optic polymer waveguide materials.

La présente invention concerne un processus de préparation d'un poly(arylène éther) comprenant l'unité de répétition représentée par la formule (I). Dans cette formule n représente un poids moléculaire compris entre environ 30.000 et 100.000, X représente un des groupes suivants: none, cétone, sulfone, sulfure, éther, hexafluoro-isopropylidène, ?O-perfluoroalkylène, oxadiazole et Y est 4,4'-(hexafluoro-isopropylidéne)-diphényle, 4,4'-isopropylidéne diphényle, 3,3'-isopropylidène diphényle, phényle, ou phénol chloré. Ce processus consiste à faire réagir un composé bi(pentafluorophényle) et un biphénol ou une hydroquinone en présence d'un agent déshydratant et d'un solvant aprotique polaire. Les polymères résultant de ce processus sont très prometteurs comme nouveaux matériaux de guide d'onde polymère optique passif.

Affiliated with

Also associated with

Rating

Techniques for the preparation of highly fluorinated polyethers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Techniques for the preparation of highly fluorinated polyethers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Techniques for the preparation of highly fluorinated polyethers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1692420