Reversible chiral optical data storage using majority rule of po

Details Reversible chiral optical data storage using majority rule of po Reversible chiral optical data storage using majority rule of po

1994-09-27

1996-01-02

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430 20, 430269, 43027011, 430495, 430945, 25229901, 528 44, 528 69, G03C 173, G11B 700

Patent

active

054807492

ABSTRACT:
This invention provides a photoswitchable compound comprising interconvertible mirror image units or interconvertible chiral diastereomeric units connected as pendant groups to a stiff polymer having interconvertible left- and right-handed helical portions of its backbone. Further provided by this invention is a photoswitchable compound formed by the method comprising combining an amount of the compound capable of optical activity and capable of changing its optical activity with an amount of a stiff polymer comprised of interconvertible left- and right-handed helical portions. Additionally, this invention provides a method for reversibly storing optical data comprising providing a material comprised of a mixture of a stiff polymer having interconvertible left- and right-handed helical portions and connected units, said units being capable of optical activity and capable of changing its optical activity and irradiating said material with light capable of changing the optical activity of said material.

REFERENCES:
patent: 4412059 (1983-10-01), Krigbaum et al.
patent: 5011756 (1991-04-01), Nikles
patent: 5262081 (1993-11-01), Gray et al.
Zhang et al., J. Am. Chem. Soc., 116, 4852 (1994).
Zhang et al., J. Phys. Chem., 96, 3063 (1992).
Lemieux et al., J. Org. Chem., 58, 100 (1993).
Lifson et al., Macromolecules, 25, 4142 (1992).
Lifson et al., J. Am. Chem. Soc., 111, 8850 (1989).

Affiliated with

Also associated with

Rating

Reversible chiral optical data storage using majority rule of po does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reversible chiral optical data storage using majority rule of po, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reversible chiral optical data storage using majority rule of po will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-234137