共 56 条
Self-Assembly of Poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} with Oppositely Charged Phenylenevinylene Oligoelectrolytes
被引:15
作者:

Costa, Telma
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Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal
Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Marques, Ana T.
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机构:
Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal
Berg Univ Wuppertal, D-42097 Wuppertal, Germany Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Sergio Seixas de Melo, J.
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Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Thomas, Alexander W.
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Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Garner, Logan E.
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Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Scherf, Ullrich
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h-index: 0
机构:
Berg Univ Wuppertal, D-42097 Wuppertal, Germany Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Bazan, Guillermo C.
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Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal

Burrows, Hugh D.
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h-index: 0
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Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal
机构:
[1] Univ Coimbra, Dept Chem, Ctr Quim Coimbra, P-3004535 Coimbra, Portugal
[2] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
[3] Berg Univ Wuppertal, D-42097 Wuppertal, Germany
关键词:
CONJUGATED POLYELECTROLYTES;
ENERGY-TRANSFER;
CONFORMATIONAL RELAXATION;
ELECTRON-TRANSFER;
WATER;
PHOTOPHYSICS;
POLYFLUORENE;
AGGREGATION;
POLYMERS;
SOLUBILIZATION;
D O I:
10.1021/jp409577y
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The interaction of the water-soluble conjugated polyelectrolyte (CPE) poly{1,4-phenylene-[9,9-bis(4-phenoxy-butylsulfonate)]fluorene-2,7-diyl} (PBS-PFP) (degree of polymerization, DP, similar to 3-6) with various concentrations of a homologous series of oppositely charged amphiphilic phenylenevinylene oligomers was investigated in water:dioxane mixtures and in aqueous micellar solutions of the non-ionic surfactant n-dodecylpentaoxyethylene glycol ether. The excellent spectral overlap between the CPE fluorescence and the conjugated oligoelectrolyte (COE) absorption indicates that energy transfer between these is a highly favored process, and can be tuned by changing the COE chain length. This is supported by time-resolved fluorescence data. The overall results provide support for different types of self-assembly, which are sensitive to the solvent environment and to the size of the phenylenevinylene oligoelectrolyte chain. It is suggested that large aggregates are formed in water:dioxane mixtures, while decorated core shell structures are present in the surfactant solutions.
引用
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页码:613 / 623
页数:11
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