Journal of Polymer Science Part B: Polymer Physics

Cover image for Vol. 52 Issue 10

Online ISSN: 1099-0488

Associated Title(s): Journal of Polymer Science Part A: Polymer Chemistry

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Publishes papers on the physics of polymers, including applications, theory and modeling and experiments. 2012 ISI Impact Factor: 2.221

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  1. A novel method for a high-strength electrospun meta-aramid nanofiber by microwave treatment

    Hyun Ju Oh, Song Hee Han and Seong Su Kim

    Article first published online: 11 APR 2014 | DOI: 10.1002/polb.23486

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    Microwave dielectric heating is a simple and rapid method for improving the mechanical strength of electrospun nanofiber mats. Herein, a novel microwave technique for use in the post-processing of electrospun nanofibers is described for the first time. To optimize the microwave irradiation conditions, the nanofiber was treated at varying levels of moisture and different irradiation times. The results show that this method can generate inter-fiber cohesion structures and high crystallinity in the nanofiber.

  2. Controlled self-assembly of porphyrin/fullerene donor–acceptor complex in a polymer thin film

    Itaru Natori, Shizue Natori, Naoki Hanawa and Kenji Ogino

    Article first published online: 11 APR 2014 | DOI: 10.1002/polb.23488

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    Thin films composed of polycyclohexane (PCHE), zinc(II)−5,10,15,20-tetra-(2-naphthyl)porphyrin (ZnTNpP), and [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) blends are prepared to investigate their potential for the controlled self-assembly of a porphyrin/fullerene donor–acceptor complex. The compatibilities in these blends have a significant effect on the dispersion of the ZnTNpP/PCBM donor–acceptor complex. This concept may be applied to various combinations of porphyrin/fullerene systems in polymer thin film solar cells to achieve excellent performance.

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    Paper: An effective substrate for the enhancement of thermoelectric properties in PEDOT:PSS

    Qinglin Jiang, Congcong Liu, Jingkun Xu, Baoyang Lu, Haijun Song, Hui Shi, Yuanyuan Yao and Long Zhang

    Article first published online: 7 APR 2014 | DOI: 10.1002/polb.23482

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    Paper has been applied to cutting edge research such as organic photodiodes, organic thin-film transistors, and active matrix displays. In this work, a novel strategy via paper as an effective substrate has been introduced as a thermoelectric material. Free-standing poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)/paper composite films are conveniently prepared via one direct-write step, showing excellent flexibility, light weight, soaking stability in water, and great potential in large-scale production. This new approach could be developed for the preparation of high-performance and flexible thermoelectric materials.

  4. Characterization of two- and three-photon absorption of polyfluorene derivatives

    Leonardo De Boni, Ruben D. Fonseca, Kleber R. A. Cardoso, Isabel Grova, Leni Akcelrud, Daniel S. Correa and Cleber R. Mendonça

    Article first published online: 1 APR 2014 | DOI: 10.1002/polb.23475

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    Fluorene-based polymers are promising materials for electronic devices, but their nonlinear optical properties have only recently been intensively researched. In this study, the nonlinear properties of two polyfluorene derivatives are investigated. Because of the intense two-photon absorption properties of polymers, primarily a consequence of high conjugation along the polymer backbone, optical limiting behavior and induced fluorescence are observed. In addition to considerable two-photon absorption, the materials also show three-photon absorption that increases their potential use in nonlinear optical applications.

  5. Polarization holographic grating recording in the cholesteric azobenzene-containing films with the phototunable helix pitch

    Alexander Ryabchun, Anna Sobolewska, Alexey Bobrovsky, Valery Shibaev and Joachim Stumpe

    Article first published online: 1 APR 2014 | DOI: 10.1002/polb.23481

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    Polarization grating recording in cholesteric azobenzene-containing liquid-crystalline films was studied; a range of helix pitches were investigated, showing that diffraction efficiency (DE) decreases as helix pitch increases. Comparison of the induction of polarization gratings in the films with nematic and amorphous polymer systems showed that only the cholesteric films had significant oscillations in the DE signal, as well as a maximum in the first-order DE at the initial stage of the grating recording process.

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