Journal of Polymer Science Part B: Polymer Physics

Cover image for Vol. 55 Issue 9

Online ISSN: 1099-0488

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

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J. Polym. Sci. B Polym. Phys. publishes papers on the physics of polymers, including applications, theory and modeling, and experiments. 2015 ISI Impact Factor: 3.318.



Recently Published Articles

  1. Semidilute solution structure of cellulose in an ionic liquid and its mixture with a polar organic co-solvent studied by small-angle X-ray scattering

    Sofia Napso, Dmitry M. Rein, Rafail Khalfin and Yachin Cohen

    Version of Record online: 27 MAR 2017 | DOI: 10.1002/polb.24337

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    Cellulose is the most abundant biopolymer on earth, and new methods to dissolve it have garnered much interest. Solutions of cellulose in ionic-liquid and its mixture with a polar organic co-solvent are studied by small-angle X-ray scattering (SAXS) to evaluate the structure and thermodynamic solution properties. Till now, these were only evaluated by rheological measurements. The results provide direct evidence of molecular dissolution of the cellulose chains and show good solvent conditions.

  2. Formation of DNA pearl-necklace structures on mica surface governed by kinetics and thermodynamics

    Bo Xi and Shi-Yong Ran

    Version of Record online: 25 MAR 2017 | DOI: 10.1002/polb.24344

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    A water thread can split into several separated water drops due to the Rayleigh instability. The similar mechanism can result in the pearl-necklace conformation of polyelectrolytes. In this paper, the DNA pearl-necklace structures including a new rods-on-a-string structure were shown by morphology characterization. A complete experimental picture on the structure was presented, which helps to understand the collapse behavior of polyelectrolytes in poor solvents.

  3. Enhanced dielectric properties of polymer composite films induced by encapsulated MWCNTs with a one core-two shell structure

    Shuangmin Yu and Gengchao Wang

    Version of Record online: 25 MAR 2017 | DOI: 10.1002/polb.24341

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    The one core- two shell structured aMWCNTs@PANI-PSS nanofiber has been fabricated and its PVDF-HFP based composite film shows a high dielectric constant and relatively low dielectric loss. The approach in this study may be extended to the fabrication of similar hybrid composites with excellent mechanical and dielectric performance, which can be beneficial for applications in electronic devices.

  4. Particle plasmon-induced charge trapping at heterointerfaces in PCDTBT:PC70BM blends

    Fei Dou, Cephas Small, Francoise Provencher, Jason Ferreira, Xuhua Wang, Elham Rezasoltani, Hongmei Liu and Xinping Zhang

    Version of Record online: 25 MAR 2017 | DOI: 10.1002/polb.24340

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    Plasmon is an important strategy to enhance light harvesting efficiency in photovoltaic devices. However, the underlining mechanisms still need more solid photophysical support. This work uses various spectroscopic methods to investigate how particle plasmons influence the evolution dynamics of long-lived charges in polymer blends. It was revealed that the long-lived charges mainly resulted from the localization by particle plasmons. The morphology modification in the blend film made negligible contributions to this influence.

  5. A comparative study of calorimetric methods to determine the crosslinking degree of the ethylene-Co-vinyl acetate polymer used as a photovoltaic encapsulant

    Stéphane Ogier, Chloé Vidal, David Chapron, Patrice Bourson, Isabelle Royaud, Marc Ponçot, Marion Vite and Manuel Hidalgo

    Version of Record online: 25 MAR 2017 | DOI: 10.1002/polb.24335

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    GRAPHICAL ABSTRACT

    EVA copolymer foils used as encapsulants for photovoltaic (PV) cells need to be crosslinked during module manufacturing. Accurate and reliable methods are crucial for the determination of their crosslinking degree. The main purpose of this work is to reveal the chemical and physical fundamentals on which two calorimetric methods used to determine the crosslinking degree of EVA are based. For one of these methods based upon crystallization, the authors have revealed the crystallite size distribution of the copolymer and the influence the degree of crosslinking has upon it.

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