Journal of Polymer Science Part A: Polymer Chemistry

Cover image for Vol. 53 Issue 17

1 September 2015

Volume 53, Issue 17

Pages i–vi, 1957–2069

  1. Cover Image

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. You have free access to this content
      Cover Image, Volume 53, Issue 17 (pages i–ii)

      Article first published online: 21 JUL 2015 | DOI: 10.1002/pola.27739

      Thumbnail image of graphical abstract

      Preparation of poly(1,4-phenylene-5-hydroxyisophthalamide) hollow spheres and their formation mechanism is reported by Hirofumi Nakayama, Yuji Fujitsu, Tetsuya Uchida, Shinichi Yamazaki, and Kunio Kimura on page 1966 (DOI: 10.1002/pola.27683). Hollow spheres were obtained by the reaction-induced phase separation during polymerization of 5-hydroxyisophthalic acid and 1,4-phenylene diamines in aromatic solvent. The formation mechanism of the hollow spheres was considered based on the criteria of polymer structure, cross-linking reaction, and the elimination of small molecules. Water, rigid polymer structure, and the phenolic hydroxyl group in 5-hydroxy-1,3-phenylene moiety were of great importance when forming the hollow structure.

    2. You have free access to this content
      Cover Image, Volume 53, Issue 17 (pages iii–iv)

      Article first published online: 21 JUL 2015 | DOI: 10.1002/pola.27740

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      Boron subphthalocyanines (BsubPcs) are aromatic macrocycles that have recently gained significant interest as functional small molecules in organic photovoltaic devices and organic light emitting diodes. On page 1996 (DOI: 10.1002/pola.27685), Benoît H. Lessard, Kathleen L. Sampson, Trevor Plint, and Timothy P. Bender continue to explore the synthetic challenges associated with synthesizing candidate BsubPc-containing polymers and incorporating them into organic electronic devices. As a result, the first organic electronic device containing poly-BsubPc is reported—a light emitting diode with a unique orange electroluminescence. This picture illustrates a pixel of the light emitting diode and the background color is the same color as the electroluminescence.

    3. You have free access to this content
      Cover Image, Volume 53, Issue 17 (pages v–vi)

      Article first published online: 21 JUL 2015 | DOI: 10.1002/pola.27741

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      Demands on the design and production of stimuli-responsive nanogel particles to be used in biomedical applications are constantly evolving. In order to better exploit their technological promise, an improved understanding of their morphology is required for a deeper insight on their swelling responses to various external stimuli, as discussed by Aintzane Pikabea, Garbiñe Aguirre, Jose I. Miranda, Jose Ramos, and Jacqueline Forcada on page 2017 (DOI: 10.1002/pola.27653). The cover image depicts different morphologies of biocompatible and dual-stimuli-responsive nanogels synthesized using three different cross-linkers: two bifunctional ethylene glycol-based cross-linkers with different chain lengths and one multifunctional dextran-based cross-linker.

  2. Rapid Communications

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. Spotlight Article

      Facile and versatile platform for the preparation of functional polyethylenes via thiol-ene chemistry (pages 1957–1960)

      Zeyun Xiao, Christopher W. Bennett and Luke A. Connal

      Article first published online: 27 APR 2015 | DOI: 10.1002/pola.27667

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      A modular approach to the preparation of functional polyethylenes is presented. Polycyclooctene polymers are prepared via ring opening metathesis polymerization. The internal alkene bonds of the subsequent polyclycooctenes are exploited using photochemical thiol–ene click chemistry. A range of branched, amphiphilic, and fluorinated polyethylenes are synthesized.

    2. Evolution of ppm amount of Ru(III) complexes for effective living radical polymerization of MMA (pages 1961–1965)

      Xiangxiong Chen, Thi Thuy Duong Nguyen, Mohd Yusuf Khan, Likai Xia, Dan He, Seung Woo Lee and Seok Kyun Noh

      Article first published online: 27 MAY 2015 | DOI: 10.1002/pola.27671

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      Three half-metallocene ruthenium(III) complexes, [(Cp*RuCl2)PPh2R] (R = C6H4–OCH3,C6H5, and C5H5N were prepared. These Ru(III) complexes polymerized MMA successfully via ATRP in the absence of any reducing agent or free radical initiator. All of three complexes produced a linear relationship between ln[Mn]0/[Mn] versus the reaction time and the living properties through a linear increase in molecular weight versus conversion. Especially, well-defined PMMA and high initiation efficiency were obtained in the presence of 10 ppm catalysts.

  3. Articles

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. Consideration on formation mechanism of aromatic polyamide hollow spheres prepared by reaction-Induced phase separation (pages 1966–1974)

      Hirofumi Nakayama, Yuji Fujitsu, Tetsuya Uchida, Shinichi Yamazaki and Kunio Kimura

      Article first published online: 6 MAY 2015 | DOI: 10.1002/pola.27683

      Thumbnail image of graphical abstract

      Formation mechanism of poly(1,4-phenylene-5-hydroxyisophthalamide) hollow spheres prepared by the reaction-induced phase separation during polymerization was considered from the view points of eliminated small molecules, polymer structure, and cross-linking reaction. Water was the most desirable to form gas-bubbles and rigid polymer structure was also needed for the rapid solidification of droplets. Further, the formation of the cross-linked skin layer was important to encapsulate gas-bubbles in the droplets.

    2. Antibacterial poly(ethylene terephthalate) surfaces obtained from thymyl methacrylate polymerization (pages 1975–1985)

      Sophie Bedel, Bénédicte Lepoittevin, Ludovic Costa, Olivier Leroy, Diana Dragoe, Jérôme Bruzaud, Jean-Marie Herry, Morgan Guilbaud, Marie-Noëlle Bellon-Fontaine and Philippe Roger

      Article first published online: 23 APR 2015 | DOI: 10.1002/pola.27647

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      A method for fabrication of poly(thymyl methacrylate) brushes grafted on poly(ethylene terephthalate) films is described. The monomer is obtained from thymol essential oil. The modified surfaces are prepared by “grafting from” using atom transfer radical polymerization and present antibacterial properties against different bacteria strains.

    3. Polyaniline copolymers with solvent-mimic side chains (pages 1986–1995)

      Seung-Chul Lee, Chan-Keun Jung, Hoon-Joo Jung, Suck-Hyun Lee and O.-P. Kwon

      Article first published online: 11 APR 2015 | DOI: 10.1002/pola.27648

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      New polyaniline copolymers with solvent-mimic side chains for enhanced processability in various solvents were investigated. The solvent-mimic side chains, benzyloxypropyl (BOP) and dihydroxypropoxy (DHP), were introduced into copolymers and used with nonpolar aromatic and polar alcoholic solvents, respectively. Polyaniline copolymers with a small amount of side chains (<2 mol %) exhibit higher electric conductivity and better film-forming ability in nonpolar aromatic solvent than polyaniline homopolymer.

    4. Spotlight Article

      Boron subphthalocyanine polymers: Avoiding the small molecule side product and exploring their use in organic light-emitting diodes (pages 1996–2006)

      Benoît H. Lessard, Kathleen L. Sampson, Trevor Plint and Timothy P. Bender

      Article first published online: 19 MAY 2015 | DOI: 10.1002/pola.27685

      Thumbnail image of graphical abstract

      The synthesis of boron subphthalocyanine (BsubPc)-containing polymers, while circumventing the formation of a known side-product, is described. The resulting BsubPc polymers are characterized by electrochemistry, photoluminescence spectroscopy, and even used as an active component in preliminary polymer-based organic light-emitting diodes. These polymer characterizations and device integration represent a first for BsubPc polymers.

    5. Demonstration of isospecific free radical polymerization of acrylate controlled by conformation and chirality of monomer (pages 2007–2016)

      Hitoshi Tanaka, Yoshitaka Matsubara, Katsuhiko Kusunoki, Naoki Saito and Tatsuya Kibayashi

      Article first published online: 11 APR 2015 | DOI: 10.1002/pola.27649

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      A high isotactic heat-resistant functional polymer was prepared through a stereospecific free radical polymerization of bio-based acrylate derived from lactic acid. The work demonstrates the importance of chirality and conformation of monomer in the stereospecific polymerization, giving a clue to understanding stereochemistry in free radical polymerization and constructing a tailor-made polymer. A new approach to a sustainable synthesis of polymers in mild conditions is also established.

    6. Understanding of nanogels swelling behavior through a deep insight into their morphology (pages 2017–2025)

      Aintzane Pikabea, Garbiñe Aguirre, Jose I. Miranda, Jose Ramos and Jacqueline Forcada

      Article first published online: 18 APR 2015 | DOI: 10.1002/pola.27653

      Thumbnail image of graphical abstract

      The morphology and swelling behavior of biocompatible and dual-stimuli-responsive nanogels crosslinked with different crosslinkers were analyzed and related by combining the Flory–Rehner theory with 1H-NMR and PCS data.

    7. Energy transfer through heterogeneous dyes-substituted fluorene-containing alternating copolymers and their dual-emission properties in the films (pages 2026–2035)

      Hyeonuk Yeo, Kazuo Tanaka and Yoshiki Chujo

      Article first published online: 23 APR 2015 | DOI: 10.1002/pola.27652

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      A series of the alternating fluorene copolymers modified with pyrene or 9,10-diphenylanthracene and BODIPY at the cardo carbon based on the red-emissive donor-acceptor structure were prepared. From the measurements of the optical properties, the energy transfer efficiencies were evaluated. In summary, variable energy transfer efficiencies were observed between the side chains and from the side chain to the main chain. Finally, the dual-emissive polymers were obtained in the film states.

    8. Spotlight Article

      Lysine-based functional blocked isocyanates for the preparation of polyurethanes provided with pendant side groups (pages 2036–2049)

      Jie Yin, Jur Wildeman and Ton Loontjens

      Article first published online: 15 APR 2015 | DOI: 10.1002/pola.27658

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      A general methodology was found to prepare linear polyurethanes, decorated with pendant (bio)functional side groups by using (bio)functionalized blocked diisocyanates and polyols. The functionalizable blocked isocyanate precursor, caprolactam blocked lysine diisocyanate methyl ester, was prepared in high yields by reacting the methyl ester of lysine with carbonyl biscaprolactam.

    9. A benign initiating system for cationic polymerization of isobutyl vinyl ether: Silver salt/aryl(alkyl) halide/lewis base (pages 2050–2058)

      Li Lin, Guangyou Zhang, Koichi Kodama, Mikio Yasutake and Takuji Hirose

      Article first published online: 18 APR 2015 | DOI: 10.1002/pola.27656

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      Aryl(alkyl) halides and silver salts were studied as an ecofriendly initiating system for cationic polymerization of isobutyl vinyl ether (IBVE). Me2S was shown to be an effective Lewis base (LB) for controlling the reaction. Detailed study of various benzyl cations and the order of reagent addition showed that the reaction was controlled by the steric and electronic features of the benzyl halides, LBs, and IBVE. A plausible reaction mechanism was proposed.

    10. Synthesis and structure–property relationship of carbazole-alt-benzothiadiazole copolymers (pages 2059–2068)

      Jules Oriou, Feifei Ng, Georges Hadziioannou, Cyril Brochon and Eric Cloutet

      Article first published online: 18 APR 2015 | DOI: 10.1002/pola.27660

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      Four π-conjugated copolymers based on carbazole and benzothiadiazole (PCBT) were prepared by Suzuki cross-coupling reaction. Their structures differed by linkage position and geometry of the solubilizing chain on the carbazole subunits. These organic materials were characterized and showed promising properties for organic electronics applications. The differences in structure were shown to influence the optical properties.

  4. Corrigendum

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. You have free access to this content
      Corrigendum: Polymerizability of exo-methylene-lactide towards vinyl addition and ring opening (page 2069)

      Garret M. Miyake, Yuetao Zhang and Eugene Y.-X. Chen

      Article first published online: 15 JUN 2015 | DOI: 10.1002/pola.27704

      This article corrects:

      Polymerizability of Exo-methylene-lactide toward vinyl addition and ring opening

      Vol. 53, Issue 12, 1523–1532, Article first published online: 2 APR 2015

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