Journal of Polymer Science Part B: Polymer Physics

Cover image for Vol. 52 Issue 23

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. 2013 ISI Impact Factor: 3.803.

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  1. Effect of the graft ratio on the properties of polythiophene-g-poly(ethylene glycol)

    Silvana Maione, Georgina Fabregat, Luis J. del Valle, Anca-Dana Bendrea, Luminita Cianga, Ioan Cianga, Francesc Estrany and Carlos Alemán

    Article first published online: 29 OCT 2014 | DOI: 10.1002/polb.23617

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    The effects of the poly(ethylene glycol)/thiophene ratio on the physical properties and efficacy as bioactive platforms of polythiophene-g-poly(ethylene glycol) graft copolymers have been investigated. Results indicate that the optical and electrochemical properties of these graft copolymers, as well as the biocompatibility and electrocompatibility of polymeric substrates covered by cells, improves with decreasing poly(ethylene glycol)/thiophene ratio.

  2. Detailed analysis of temperature dependences of spherulite morphology and crystallite orientation of poly(vinylidene fluoride) via a combinatorial method

    Duigong Xu, Yuezhen Bin and Kohji Tashiro

    Article first published online: 29 OCT 2014 | DOI: 10.1002/polb.23620

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    Knowledge of the crystallization process of poly(vinylidene fluoride) (PVDF) is fundamental for controlling its final properties. The combinatorial method is used for the first time to study spherulite morphology and crystallite orientation of PVDF thin films as a function of melt-crystallization temperature. The crystallites start to orient as the crystallization temperature increases, where the a-axis becomes to parallel to the film normal from lower temperature to higher temperature. Moreover, lamellae size also changes, especially in the b-axis direction.

  3. High capacity and cycling stability of poly(diaminoanthraquinone) as an organic cathode for rechargeable lithium batteries

    Yi Fei Shen, Ding Ding Yuan, Xin Ping Ai, Han Xi Yang and Min Zhou

    Article first published online: 27 OCT 2014 | DOI: 10.1002/polb.23622

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    Benefiting from its high density of redox-active and Li+-associable benzoquinone groups attached to conducting polyaniline backbones, poly(1,5-diaminoanthraquinone) undergoes its cathodic reaction completely through Li+-insertion process, delivering a remarkable high capacity of 285 mAh g−1 with excellent rate capability and cycling stability, possibly serving as a sustainable, high capacity Li+ host cathode for Li-ion batteries.

  4. Multifunctional polyacrylonitrile-ZnO/Ag electrospun nanofiber membranes with various ZnO morphologies for photocatalytic, UV-shielding, and antibacterial applications

    Yen-Yu Chen, Chi-Ching Kuo, Bo-Yu Chen, Pei-Chi Chiu and Ping-Chun Tsai

    Article first published online: 24 OCT 2014 | DOI: 10.1002/polb.23621

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    Multifunctional electrospun nanofiber membranes for photocatalytic, UV-shielding, and antimicrobial applications were prepared from a PAN-ZnO/Ag composite and consisted of various ZnO morphologies, namely the pineal type, flower type, and sea-urchin type. Among these highly flexible, free-standing, three-dimensional nanostructures of PAN-ZnO/Ag composite fiber membranes, those composed of the sea-urchin-type ZnO structure feature a higher surface-to-volume ratio than other ZnO architectures do because of its distinctive structure, thus yielding higher performance.

  5. Correlation of gas permeation and free volume in new and used high free volume thin film composite membranes

    Toenjes Koschine, Klaus Rätzke, Franz Faupel, Muntazim Munir Khan, Thomas Emmler, Volkan Filiz, Volker Abetz, Luca Ravelli and Werner Egger

    Article first published online: 23 OCT 2014 | DOI: 10.1002/polb.23616

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    Physical aging in thin polymer films can lead to a reduction in membrane performance over time. The reduction in performance correlates to a lower free volume and can be measured by positron annihilation lifetime spectroscopy. By adding functionalized carbon nanotubes to polymeric gas separation membranes, mechanical and gas separation properties can be improved and aging can be reduced, as shown by free volume and permeation measurements.

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