Blue-Emitting Poly(2,7-pyrenylene)s: Synthesis and Optical Properties

被引：63

作者：

Kawano, Shin-ichiro ^{[1
]}

Yang, Changduk ^{[1
]}

Ribas, Marcos ^{[1
]}

Baluschev, Stanislav ^{[1
]}

Baumgarten, Martin ^{[1
]}

Muellen, Klaus ^{[1
]}

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

来源：

MACROMOLECULES | 2008年 / 41卷 / 21期

关键词：

D O I：

10.1021/ma8017316

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The first 2,7-linked conjugated polypyrene tethering four aryl groups has been synthesized, and the photophysical properties of the polymer have been characterized. Due to the unique substitution with bulky aryl groups at the 4,5,9,10-positions of pyrene, the polymer although comprising large T-units is readily soluble in common organic solvents. The polymer has a blue fluorescence in solution with an emission band maximum at lambda = 429 nm, fulfilling the requirements for a blue-emitting polymer. To a first approximation, this can be attributed to electronically decoupled pyrene subunits due to the nodal properties of their frontier orbitals. Furthermore, in solution the intriguing blue fluorescence is combined with solvent-dependent features, which could be used as a probe for local solvent polarity. Finally, in the solid state, the red-shifted emission of the polymer could be strongly reduced by blending with a nonconjugated polymer such as polystyrene.

引用

页码：7933 / 7937

页数：5

共 50 条

[11] Energy and electron transfer in a poly(fluorene-alt-phenylene) bearing perylenediimides as pendant electron acceptor groups [J].

Gomez, Rafael ;

Veldman, Dirk ;

Blanco, Raul ;

Seoane, Carlos ;

Segura, Jose L. ;

Janssen, Rene A. J. .

MACROMOLECULES, 2007, 40 (08) :2760-2772

[12] A glass-forming conjugated main-chain liquid crystal polymer for polarized electroluminescence applications [J].

Grell, M ;

Bradley, DDC ;

Inbasekaran, M ;

Woo, EP .

ADVANCED MATERIALS, 1997, 9 (10) :798-&

[13] The chemistry of organic nanomaterials [J].

Grimsdale, AC ;

Müllen, K .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (35) :5592-5629

[14]

GRIMSDALE AC, 2005, ADV POLYM SCI

[15] Temperature-dependent photoluminescence of organic semiconductors with varying backbone conformation [J].

Guha, S ;

Rice, JD ;

Yau, YT ;

Martin, CM ;

Chandrasekhar, M ;

Chandrasekhar, HR ;

Guentner, R ;

de Freitas, PS ;

Scherf, U .

PHYSICAL REVIEW B, 2003, 67 (12) :7

[16] Crystal structure of 1,1′-biphenyl-2,2′,3,3′-tetracarboxylic and 1,1′-biphenyl-2,2′,3,3′,5,5′,6,6′-octacarboxylic acids:: solid-state chiralization and dissociation [J].

Holy, P ;

Sehnal, P ;

Tichy, M ;

Závada, J ;

Císarová, I .

TETRAHEDRON-ASYMMETRY, 2004, 15 (23) :3805-3810

[17] Spectroscopic and product studies of the effect of para substituents on the reactivity of triplet bis(2,6-dimethylphenyl)carbenes [J].

Hu, YM ;

Ishikawa, Y ;

Hirai, K ;

Tomioka, H .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 2001, 74 (11) :2207-2218

[18] BLUE-LIGHT-EMITTING DIODES BASED ON LADDER POLYMERS OF THE PPP TYPE [J].

HUBER, J ;

MULLEN, K ;

SALBECK, J ;

SCHENK, H ;

SCHERF, U ;

STEHLIN, T ;

STERN, R .

ACTA POLYMERICA, 1994, 45 (03) :244-247

[19]

IGNACIO F, 2003, CHEM PHYS LETT, V372, P403

[20] Ultrafast electron transfer in acceptor substituted bianthryl derivatives [J].

Jurczok, M ;

Plaza, P ;

Rettig, W ;

Martin, MM .

CHEMICAL PHYSICS, 2000, 256 (01) :137-148

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