Andrea K Peters

US Patent:

8450503, May 28, 2013

Filed:

Jul 1, 2010

Appl. No.:

12/828756

Inventors:

Neil R. Branda - North Vancouver, CA
Andrea Peters - Los Angeles CA, US
Anthony J. Wigglesworth - Vancouver, CA

Assignee:

Switch Materials Inc. - Vancouver

International Classification:

C07D 333/50
C07D 409/02

US Classification:

549 42, 549 59

Abstract:

This invention relates to novel photochromic and electrochromic monomers and polymers based on 1,2-dithienylcyclopentene derivatives and method of using and synthesizing same. The compounds are reversibly interconvertible between different isomeric forms under suitable photochromic or electrochromic conditions. The electrochromic conversion may be catalytic. The application also relates to ultra-high density homopolymers prepared using ring-opening methathesis polymerization (ROMP) where the central ring of the 1,2-bis(3-thienyl)-cyclopentene is incorporated directly into the polymer backbone. The monomer units may be readily functionalized to enable the synthesis of polymers with diverse structural and electronic properties. The compounds have many potential applications including high-density optical information storage systems, photoregulated molecular switches, reversible holographic systems, ophthalmic lenses, actinometry and molecular sensors, photochromic inks, paints and fibers and optoelectronic systems such as optical waveguides, Bragg reflectors and dielectric mirrors.