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Titolo:
SYNTHESIS OF SOLAR-ENERGY STORAGE-EXCHANG E POLYMER CONTAINING CHALCONE TYPE NORBORNADIENE MOIETY AND PHOTOCHEMICAL-REACTION OF THE RESULTING POLYMER
Autore:
KISHI K; BANNO H; KAMEYAMA A; NISHIKUBO T;
Indirizzi:
KANAGAWA UNIV,FAC ENGN,DEPT APPL CHEM,KANAGAWA KU YOKOHAMA 221 JAPAN
Titolo Testata:
Kobunshi ronbunshu
fascicolo: 5, volume: 51, anno: 1994,
pagine: 295 - 302
SICI:
0386-2186(1994)51:5<295:SOSSEP>2.0.ZU;2-W
Fonte:
ISI
Lingua:
JPN
Soggetto:
VALENCE ISOMERIZATION; DERIVATIVES; PROPERTY;
Keywords:
CHALCONE TYPE NORBORNADIENE MOIETY; QUADRICYCLANE MOIETY; PHOTOCHEMICAL VALENCE ISOMERIZATION; 5,10,15,20-TETRAPHENYL-21H,23H-PORPHINECOBALTO(II); CATALYTIC REVERSION; THERMAL REVERSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
K. Kishi et al., "SYNTHESIS OF SOLAR-ENERGY STORAGE-EXCHANG E POLYMER CONTAINING CHALCONE TYPE NORBORNADIENE MOIETY AND PHOTOCHEMICAL-REACTION OF THE RESULTING POLYMER", Kobunshi ronbunshu, 51(5), 1994, pp. 295-302

Abstract

A chalcone type norbornadiene (NBD) derivative was prepared by Diels-Alder reaction of cyclopentadiene with an acethylene compound which was synthesized from 4'-hydroxychalcone. Chalcone type NBD polymer was synthesized by the resulting NBD derivative with poly(p-chloromethylstyrene). The photochemical reaction of the polymer thus obtained was evaluated in the film state. The photochemical valence isomerization of the chalcone type NBD polymer proceeded to produce the corresponding quadricyclane (QC) groups with 60 second irradiation with a 500 W-xenon lamp. Furthermore, it was found that the rate of photochemical valenceisomerization of the chalcone type NBD polymer was higher than that of the other NBD polymers having phenyl or N-phenylcarbamoyl groups as chromophores. The reversion from the QC groups to the NBD moieties in the polymer was carried out using 5,10,15,20-tetraphenyl-21H,23H-porphinecobalto(II) (Co-TPP) as a catalyst in THF solution. The catalytic reversion proceeded very smoothly. The thermal reversion from QC groupsto NBD moieties in the film state also proceeded smoothly.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 07:20:26