|
telephone: 972-8-934-2676 e-mail: valeri.krongauz@weizmann.ac.il
A new type of photochromic polymer that provides light-sensitive darkening effects has been
synthesized. The polymers revealed strong fatigue resistance against photodegradation and
are being patented for use in the manufacture of plastic items with variable optical density,
such as plastic ophthalmic lenses, car windows, and so forth.
Members of the group:
Judith Ratner yehudit.ratner@weizmann.ac.il Research Projects
Photochromic Polymer Coatings for Lenses
Recent publications
G. Berkovic, V. Krongauz and V. Weiss. Spiropyrans and spirooxazines for memories and switches. Chem. Rev. 100 1741-1753 (2000).[read onlilne]
V. Weiss, A. A. Friesem and V. A. Krongauz. Organic materials for real-time holographic recording. J. Ratner, N. Kahana, A. Warshawsky and V. Krongauz. Photochromic polysulfones. 2. Photochromic properties of polymeric polsulfone carrying pendant spiropyran and spirooxazine groups. Ind. Eng. Chem. Res. 35, 1307 (1996).[read online]
A. Warshawsky, N. Kahana, F. Buchholtz, A. Zelikonok, J. Ratner and V. Krongauz.
Photochromic polysulfones. 1. Synthesis of polymeric polysulfone carrying pendant spiropyran and spirooxazine groups.
Ind. Eng. Chem. Res. 34, 2825 (1995).
V. Weiss, A.A. Friesem and V. Krongauz, Temporal holographic response in photochromic polymer films. Mol. Cryst. Liq. Cryst. 246, 367 (1994).
V. Weiss and V. Krongauz, Photokinetic transformations in photochromic polymers studied by holographic recording. J. Phys. Chem. 98, 7562 (1994).
V. Krongauz, Photochromic polymers. Mol. Cryst. Liq. Cryst. 246, 339 (1994).
A. Zelichenok, F. Buchholtz, J. Ratner, J. Fischer and V. Krongauz, Photochromism of undercooled melts of spirooxazines. J. Photochem. Photobiol. A: Chem. 77, 201 (1994).
J. Imaging Sci. Tech. 41, 371-382 (1997).