Journal of Polymer Science Part A: Polymer Chemistry

Cover image for Vol. 55 Issue 21

Impact Factor: 3.113

ISI Journal Citation Reports © Ranking: 2014: 18/82 (Polymer Science)

Online ISSN: 1099-0518

Associated Title(s): Journal of Polymer Science Part B: Polymer Physics

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  1. Highly proton conducting proton-exchange membranes based on fluorinated poly(arylene ether ketone)s with octasulfonated segments

    Yunji Xie, Di Liu, Danqi Li, Xiaocui Han, Su Li, Zheng Chen, Haibo Zhang, Jinhui Pang and Zhenhua Jiang

    Version of Record online: 25 SEP 2017 | DOI: 10.1002/pola.28857

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    The preparation of novel proton-exchange membranes based on fluorinated poly(arylene ether ketone)s with octasulfonated segments is described. 6F-SPAEK-x membranes exhibit excellent proton conductivities as well as good water uptake and swelling ratios at moderate ion exchange capacity levels. The large polarity difference between the highly ionized and fluorinated hydrophobic segments drive the formation of distinct phase-separated morphologies, and more well-connected ion nanochannels are formed with larger ionic content.

  2. Synthesis of a bio-inspired catechol/phosphorylcholine surface modifier and characterization of its surface properties

    Yucheng Zhang, Tomoyasu Hirai, Wei Ma, Yuji Higaki, Ken Kojio and Atsushi Takahara

    Version of Record online: 25 SEP 2017 | DOI: 10.1002/pola.28858

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    Poly(ɛ-caprolactone)-block-poly(2-methacryloyloxyethyl phosphorylcholine)2 (PCL-b-PMPC2) has demonstrated great potential as a surface modifier for stainless steel (SUS). As head groups of phospholipids, the phosphorylcholine groups in PMPC possess excellent biocompatibility and blood compatibility. Catechol groups, which also anchor mussels onto different surfaces, were introduced to successfully immobilize PCL-b-PMPC onto SUS samples. This novel surface modifier has displayed anti-fouling properties and long-term stability.

  3. A step forward in disclosing the secret of stradivari's varnish by NMR spectroscopy

    Alberto Spinella, Marco Malagodi, Maria Luisa Saladino, Maduka L. Weththimuni, Eugenio Caponetti and Maurizio Licchelli

    Version of Record online: 25 SEP 2017 | DOI: 10.1002/pola.28782

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    In this work, a set of varnishes prepared by varying the linseed oil/colophony ratio—following an ancient recipe used by the great violin maker Antonio Stradivari—is characterized with both liquid and solid state NMR. The two components strongly interact in the solid state. Only the varnish prepared from the 75/25 (w/w) linseed oil/colophony mixture (the one used by Stradivari) behaves as a fully homogeneous polymeric blend, unlike coatings with other compositions.

  4. Molecular sieves supported recyclable catalyst for atom transfer radical polymerization using hydration approach

    Ravi Aggarwal and Durairaj Baskaran

    Version of Record online: 21 SEP 2017 | DOI: 10.1002/pola.28772

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    Catalyst contamination of ATRP polymers is circumvented using hydration mediated supported aqueous-phase catalysis. Zeolite is hydrated to suspend the catalyst complex with ligand and used for the polymerization of benzyl methacrylate at room temperature in anisole. The diffusion dynamics of hydrated water molecules of zeolite in nonaqueous polymerization medium help interfacial fast oxidation-reduction catalytic cycles to promote polymerization at the interface showing zero-order kinetics and resulting catalyst contamination free polymer generation in anisole.

  5. Synthesis of star-shaped poly(n-butyl acrylate) oligomers with coumarin end groups and their networks for a UV-tunable viscoelastic material

    Satoshi Honda, Nobuaki Tanaka and Taro Toyota

    Version of Record online: 19 SEP 2017 | DOI: 10.1002/pola.28777

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    Solvent-free isothermal tuning of viscoelasticity of polymer materials is important for an emerging photochemical molding technology. In this study we have synthesized a four-armed star-shaped poly(butyl acrylate, BA) oligomer having four coumarin end groups and its network. Moreover, we have achieved tuning of viscoelasticity with the network material by repetitive UV365 and UV254 irradiations isothermally under a solvent-free condition.