National Research Council of Canada

Her Majesty the Queen in Right Et Al.

Yinghua Qi

Jianfu Ding

Tyler B Norsten

Michael D Guiver

Jia Jiang

Claire Callender

Michael Day

Fluorinated comb co-polymers have a main chain including a semi-rigid hydrophobic fluorinated poly(ether) backbone and comb segments in the form of flexible and monodisperse side chains that are more hydrophilic than the backbone. The side chains may be hydrophilic polymeric chains obtained from 'living-type' polymerization, for example polymethacrylates, polyethylene oxides, polystyrenes. Hydrophilic functionality, for example, ionic groups may be selectively introduced onto the side chain post polymerization. The side chain may be sulfonated &#x3b1;-methyl polystyrene. Such polymers are useful in proton exchange membranes.

Fluorinated comb-shaped polymers

The invention relates to compounds of formula I: x+y+z=1 and x=0 to 1, y=0 to 1, z=0 to 1 and R is CHor CFand Rand Reach represent H or a functional group. These compounds show promise in films and as optical waveguide materials as well as bimodal interference coupler and arrayed waveguide grating demultiplexer materials.

Cross-linkable highly fluorinated poly(arylene ethers) for optical waveguide applications

Growing community of inventors

Gatineau, Canada

Yinghua Qi