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Titolo:
Cross-linkable polymers based on dialkylfluorenes
Autore:
Klarner, G; Lee, JI; Lee, VY; Chan, E; Chen, JP; Nelson, A; Markiewicz, D; Siemens, R; Scott, JC; Miller, RD;
Indirizzi:
IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA IBM Corp San Jose CA USA 95120 p, Almaden Res Ctr, San Jose, CA 95120 USA
Titolo Testata:
CHEMISTRY OF MATERIALS
fascicolo: 7, volume: 11, anno: 1999,
pagine: 1800 - 1805
SICI:
0897-4756(199907)11:7<1800:CPBOD>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
LIGHT-EMITTING-DIODES; CONJUGATED POLYMERS; CONDUCTING POLYMERS; ELECTROLUMINESCENT DIODES; PHOTOGENERATION; POLY(ALKYLFLUORENE); PHOTOLUMINESCENCE; POLYFLUORENE; LUMINESCENCE; COPOLYMERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Miller, RD IBM Corp, Almaden Res Ctr, 650 Harry Rd, San Jose, CA 95120 USAIBM Corp 650 Harry Rd San Jose CA USA 95120 Jose, CA 95120 USA
Citazione:
G. Klarner et al., "Cross-linkable polymers based on dialkylfluorenes", CHEM MATER, 11(7), 1999, pp. 1800-1805

Abstract

We have prepared a series of cross-linkable oligo- and poly(dialkylfluorene)s by nickel(0)mediated polymerization of 2,7-dibromo-9,9-dialkylfluorene (alkyl = n-hexyl) and 4-bromo-styrene. The resulting fully soluble and processable, styryl-functionalized oligomers and polymers can be cross-linked via the vinyl end-groups by curing at 175-200 degrees C, consistent with theautopolymerization mechanism of styrene, These relatively mild conditions render the materials insoluble and enable multilayering of polymers in organic light emitting devices. At the same Lime, the electrical and/or opticalproperties of the cross-linked polymers are preserved and no deleterious species or undesirable byproducts are produced. Furthermore, the cross-linking allows control of the supramolecular ordering of the planarized rigid rod-type fluorene segments in the polymer backbone that leads to suppression of troublesome excimer/aggregate in the photo- and electrolumenescence.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 14:58:20