Journal of Polymer Science Part B: Polymer Physics

Cover image for Vol. 55 Issue 19

October 1, 2017

Volume 55, Issue 19

Pages i–ii, 1423–1493

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    1. Cover Image, Volume 55, Issue 19 (pages i–ii)

      Version of Record online: 17 AUG 2017 | DOI: 10.1002/polb.24416

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      On page 1427 (DOI: 10.1002/polb.24392), Yan-Song Zhang, A. V. Emelyanenko, and Jui-Hsiang Liu fabricate a structured broad-band photonic film by a novel method using multiple gradient UV-induced polymerization in the presence of cholesteric liquid crystals (CLCs). Here, imprinting and broadening of the reflection band of chiral nematic mesophase cells is achieved via controlled UV polymerization. This image the shows POM texture of a liquid crystal sample cell after multiple UV polymerizations. An oily texture and phase boundaries were observed. Polymerization of the monomers changed the chirality of the liquid crystals and led to the variation in POM textures. (DOI: 10.1002/polb.24392)

  2. Issue Information

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    3. Issue Information
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    1. Issue Information (pages 1423–1426)

      Version of Record online: 17 AUG 2017 | DOI: 10.1002/polb.24209

  3. Full Papers

    1. Top of page
    2. Cover Image
    3. Issue Information
    4. Full Papers
    1. Fabrication and optical characterization of imprinted broad-band photonic films via multiple gradient UV photopolymerization (pages 1427–1435)

      Yan-Song Zhang, A. V. Emelyanenko and Jui-Hsiang Liu

      Version of Record online: 22 JUN 2017 | DOI: 10.1002/polb.24392

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      A broad-band photonic polymer film can be imprinted using multiple gradient UV photopolymerization in the presence of cholesteric liquid crystals. Forming a UV intensity gradient and controlling the rate of photopolymerization are key factors in broadening the reflection band.

    2. Electrohydrodynamics of spherical polyampholyte-grafted nanoparticles: Multiscale simulations by coupling of molecular dynamics and lattice-boltzmann method (pages 1435–1448)

      Qianqian Cao, Lujuan Li and Chuncheng Zuo

      Version of Record online: 16 JUL 2017 | DOI: 10.1002/polb.24395

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      The electrohydrodynamics of a polyampholyte-coated spherical nanoparticle are studied by molecular dynamics simulations that incorporate long-range hydrodynamic interactions via a lattice-Boltzmann fluid. Some interesting results may stimulate further research interest in the area of colloid electrophoresis.

    3. Successive stepwise evolution of host layer-stacking framework upon the intercalation of mobile vapor guests within side-chain layers (pages 1448–1457)

      Bei-Kai Yang, Chen-An Wang, Wen-Yan Zhang and Jrjeng Ruan

      Version of Record online: 21 JUL 2017 | DOI: 10.1002/polb.24397

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      The mixing between mobile vapor guests and aliphatic side chains serves as the origin of guest intercalation, which rationalizes successive guest intercalation during heating and contributes to the disordering side-chain layers.

    4. Mixed micelles of oppositely charged poly(N-isopropylacrylamide) diblock copolymers (pages 1457–1470)

      Solmaz Bayati, Karl-Erik Bergquist, Kaizheng Zhu, Bo Nyström, Jan Skov Pedersen, Luciano Galantini and Karin Schillén

      Version of Record online: 24 JUL 2017 | DOI: 10.1002/polb.24403

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      Cylindrical mixed micelles are formed by two oppositely charged diblock copolymers consisting of one charged block and one nonionic block in aqueous solution. The nonionic block is thermoresponsive and becomes water-insoluble upon increasing temperature. The electrostatic attraction between the charged blocks results in a core-corona structure, where the core is composed of the charged segments and the thermoresponsive blocks constitute the corona. This study gives insight in the intricate interplay between electrostatic and hydrophobic interactions.

    5. Investigation on the stress behavior of cellulose acetate and the development of highly moisture-resistant optical films for display devices (pages 1470–1479)

      Min Sang Park, Seokwon Jung, So Jeong Heo and Seung Geol Lee

      Version of Record online: 27 JUL 2017 | DOI: 10.1002/polb.24400

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      Retardation of cellulose acetate film including a retardation-enhancing additive is highly altered after the moisture absorption. The magnitude of the variation is highly affected by the stretching temperatures, at which there is significant difference in the stress generation as well as deformation behavior. Releasable stress and different deformation behavior are responsible for the difference in moisture-resistance.

    6. Thin-film photovoltaic devices incorporating low-bandgap push–pull molecules dispersed in passive polymeric matrices (pages 1479–1493)

      Pierre-Louis M. Brunner and James D. Wuest

      Version of Record online: 11 JUL 2017 | DOI: 10.1002/polb.24402

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      Thin films made from low-bandgap push–pull small molecules and [6,6]-phenyl-C71-butyric acid methyl ester for use in organic photovoltaic devices can be made resistant to phase separation and crystallization by adding optoelectronically passive conventional polymers, including polystyrene, poly(methyl methacrylate), poly(vinyl chloride), poly(ethylene glycol), and poly(dimethylsiloxane). The performance of the resulting devices was tested, and the morphologies of the active layers were assessed by atomic force microscopy and electron microscopy.

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