Journal of Polymer Science Part A: Polymer Chemistry

Cover image for Vol. 52 Issue 24

Impact Factor: 3.245

ISI Journal Citation Reports © Ranking: 2013: 14/82 (Polymer Science)

Online ISSN: 1099-0518

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

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  1. Novel heterocyclic poly(pyridine-imide)s with unsymmetric carbazole substituent and noncoplanar structure: High thermal, mechanical and optical transparency, electrochemical, and electrochromic properties

    Ying-Chi Huang, Kun-Li Wang, Wei-Yi Lee, Yi-An Liao, Der-Jang Liaw, Kueir-Rarn Lee and Juin-Yih Lai

    Article first published online: 21 NOV 2014 | DOI: 10.1002/pola.27438

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    Diamine-containing pyridine and unsymmetrical carbazole groups were synthesized via a Chichibabin reaction and subsequent reduction, and used in the preparation of poly(pyridine-imide)s PI-1–8. When the HCl concentration was increased, a new absorption band appeared at approximately 350 nm, and the intensity of the fluorescent peak at 380 nm observed in the neutral polymer solution decreased, along with the appearance of the new fluorescent peak at 540 nm.

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    Stabilization of factor VIII by poly(2-oxazoline) hydrogels

    Matthias Hartlieb, Stephanie Schubert, Kristian Kempe, Norbert Windhab and Ulrich S. Schubert

    Article first published online: 18 NOV 2014 | DOI: 10.1002/pola.27457

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    Using a bis-functional monomer, poly(2-oxazoline) hydrogels were synthesized via cationic ring-opening polymerization and used to stabilize FVIII in aqueous solution.

  3. pH-responsive near-infrared emitting conjugated polymer nanoparticles for cellular imaging and controlled-drug delivery

    Jousheed Pennakalathil, Alp Özgün, Irem Durmaz, Rengül Cetin-Atalay and Dönüs Tuncel

    Article first published online: 17 NOV 2014 | DOI: 10.1002/pola.27458

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    pH-responsive near-infrared emitting conjugated polymer nanoparticles (CPNs) were prepared, characterized, and their stabilities were investigated under various conditions. It was shown that CPNs can be effectively utilized as vehicles for pH-triggered release of anticancer drugs and for cellular imaging.

  4. Isobutylene-rich macromonomers: Dynamics and yields of peroxide-initiated crosslinking

    Jackson M. Dakin, Karthik Vikram Siva Shanmugam, Christopher Twigg, Ralph A. Whitney and J. Scott Parent

    Article first published online: 17 NOV 2014 | DOI: 10.1002/pola.27462

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    Peroxide-initiated crosslinking dynamics and yields of a range of isobutylene-rich macromonomers are examined and discussed.

  5. Design, polymerization, and properties of polyurethane elastomers from miscible, immiscible, and hybridized seed-oil derived soft segment blends

    Mark F. Sonnenschein, Valeriy V. Ginzburg, Adam L. Grzesiak, Klaus Schiller and Benjamin L. Wendt

    Article first published online: 10 NOV 2014 | DOI: 10.1002/pola.27450

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    Polyol soft segments can be blended, but phase separated if mixing thermodynamics are unfavorable. This is particularly evident in attempts to blend seed-oil polyols with some conventional petrochemical polyols. Polyurethane elastomers from phase separated polyols have broad glass transitions and poor tensile properties. Seed-oil soft segment blends that are chosen for miscibility, or are chemically polymerized forming a single soft segment can result in high-performing elastomers with narrow glass transitions and good tensile properties.