SPIROPYRANS AS COUNTERIONS IN PHOTOCHROME-CONTAINING POLYELECTROLYTE

Authors
UZNANSKI P PECHERZ J KRYSZEWSKI M
Citation
P. Uznanski et al., SPIROPYRANS AS COUNTERIONS IN PHOTOCHROME-CONTAINING POLYELECTROLYTE, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 246, 1994, pp. 351-354
Citations number
4
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
246
Year of publication
1994
Pages
351 - 354
Database
ISI
SICI code
1058-725X(1994)246:<351:SACIPP>2.0.ZU;2-C
Abstract
Synthesis and properties of polycation with spiropyran salt as counter ion were investigated. The photochromic group was connected to the mai n chain of polymer (polycation bromide) by ion-exchange in polar solut ion. The new system shows negative photochromism. The existence of N+- cation as part of the polymer changes kinetic properties the thermocol oration. The ring closuring reaction influences thermal properties of the polyelectrolyte chain.