Macromolecular Rapid Communications

Cover image for Vol. 34 Issue 7

April 12, 2013

Volume 34, Issue 7

Pages 557–620

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Communications
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      Macromol. Rapid Commun. 7/2013 (page 557)

      Benoît H. Lessard and Timothy P. Bender

      Article first published online: 3 APR 2013 | DOI: 10.1002/marc.201370021

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      Front Cover: Boron subphthalocyanine (BsubPc) polymers are formed by means of a post-polymerization, one-step coupling reaction to acrylic acid-containing copolymers. While performing the coupling reaction, a discrete side product is noted, the presence of which is of interest to anyone using styrene acrylic acid copolymers. Further details can be found in the article by B. H. Lessard and T. P. Bender* on page 568.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Communications
    1. Macromol. Rapid Commun. 7/2013

      Article first published online: 3 APR 2013 | DOI: 10.1002/marc.201370022

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Communications
    1. Macromol. Rapid Commun. 7/2013 (pages 559–561)

      Article first published online: 3 APR 2013 | DOI: 10.1002/marc.201370023

  4. Communications

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Communications
    1. Radiolabeled Nanogels for Nuclear Molecular Imaging (pages 562–567)

      Smriti Singh, Bahar Bingöl, Agnieszka Morgenroth, Felix M. Mottaghy, Martin Möller and Jörn Schmaljohann

      Article first published online: 19 FEB 2013 | DOI: 10.1002/marc.201200744

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      Biodegradable nanogels are prepared by crosslinking of amphiphilic, thiol-functionalized star shaped P(EO-stat-PO). Incorporation of NODAGA, a chelating agent, in the prepolymer enabled the radiolabeling of nanogels with 68Ga for the purpose of investigation the in vivo behavior of nanogels. Nanogels are biocompatible and only ingested by macrophage on upregulation of phagocytosis capacity.

    2. Boron Subphthalocyanine Polymers by Facile Coupling to Poly(acrylic acid-ran-styrene) Copolymers Synthesized by Nitroxide-Mediated Polymerization and the Associated Problems with Autoinitiation (pages 568–573)

      Benoît H. Lessard and Timothy P. Bender

      Article first published online: 5 FEB 2013 | DOI: 10.1002/marc.201200787

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      Boron subphthalocyanine-containing copolymers are obtained by a post-polymerization coupling reaction to acrylic acid/styrene copolymers that are synthesized under nitroxide-mediated polymerization conditions. A discrete low-molecular-weight side product is present in the prepolymer that is a result of the autoinitiation of styrene and acrylic acid. A mechanism for the formation of the side product is proposed.

    3. Thermoresponsive Diblock Copolymer with Tunable Soluble–Insoluble and Soluble–Insoluble–Soluble Transitions (pages 574–580)

      Xia Han, Xuxia Zhang, Quanyi Yin, Jun Hu, Honglai Liu and Ying Hu

      Article first published online: 26 FEB 2013 | DOI: 10.1002/marc.201200785

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      The phase-transition process of a diblock copolymer consisting of poly(ethylene glycol) methyl ether (mPEG) and poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) in aqueous solutions from no response in acidic media to a soluble–insoluble (S-I) transition in neutral media and an S-I-S transition in basic media is successfully tuned either in the presence of salt or for salt-free solutions.

    4. The Use of an Emulsion Templated Microcellular Poly(dicyclopentadiene-co-norbornene) Membrane as a Separator in Lithium-Ion Batteries (pages 581–587)

      Sebastijan Kovačič, Harald Kren, Peter Krajnc, Stefan Koller and Christian Slugovc

      Article first published online: 12 MAR 2013 | DOI: 10.1002/marc.201200754

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      The preparation of open macroporous membranes by the ring opening metathesis polymerization of a mixture of norbornene and dicyclopentadiene and their basic applicability as separators in lithium-ion batteries is discussed.

    5. Collapse of Cylindrical Brushes with 2-Isopropyloxazoline Side Chains Close to the Phase Boundary (pages 588–594)

      Jasmin Bühler, Sandra Muth, Karl Fischer and Manfred Schmidt

      Article first published online: 12 FEB 2013 | DOI: 10.1002/marc.201200784

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      Free-radical polymerization of poly-2- isopropyl-oxazoline macromonomers in the phase-separated regime yields cylindrical brush polymers with several hundred nanometers in length and a large Kuhn statistical segment length of lk = 110 nm. Upon polymerization, the cloud point temperature is suppressed by approximately 20 °C.

    6. Novel Cathode Interlayers Based on Neutral Alcohol-Soluble Small Molecules with a Triphenylamine Core Featuring Polar Phosphonate Side Chains for High-Performance Polymer Light-Emitting and Photovoltaic Devices (pages 595–603)

      Dongcheng Chen, Hu Zhou, Ming Liu, Wei-Ming Zhao, Shi-Jian Su and Yong Cao

      Article first published online: 6 FEB 2013 | DOI: 10.1002/marc.201200812

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      A family of neutral alcohol-soluble small molecular materials based on an electron-rich triphenylamine (TPA) core featuring polar phosphonate side chains is developed as an excellent cathode interlayer for polymer light-emitting and photovoltaic devices. Although TPA is well-known as a hole-transporting unit, the current findings indicate that the TPA-based alcohol-soluble small molecules are also a promising cathode interlayer for high performance optoelectronic devices.

    7. High-Pressure Atom Transfer Radical Polymerization of n-Butyl Acrylate (pages 604–609)

      Yu Wang, Hendrik Schroeder, Joachim Morick, Michael Buback and Krzysztof Matyjaszewski

      Article first published online: 18 FEB 2013 | DOI: 10.1002/marc.201200752

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      Normal ATRP of n-butyl acrylate with ppm level of Cu catalyst is performed at high pressure (5 kbar) in the absence of additional reducing agent. High pressure accelerates the rate of polymerization without increasing the loss of chain-end functionality.

    8. Formation of Integral Asymmetric Membranes of AB Diblock and ABC Triblock Copolymers by Phase Inversion (pages 610–615)

      Adina Jung, Volkan Filiz, Sofia Rangou, Kristian Buhr, Petra Merten, Janina Hahn, Juliana Clodt, Clarissa Abetz and Volker Abetz

      Article first published online: 7 FEB 2013 | DOI: 10.1002/marc.201200770

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      Integral asymmetric membranes from PS-b-P2VP-b-PEO triblock terpolymers by phase inversion are shown for the first time. The membranes are compared with their PS-b-P2VP-precursors in terms of morphology, water flux, retention capacity, and contact angle. The presence of the short PEO block leads to a higher water flux and smaller contact angle due to its hydrophilicity. The hydroxyl end group may be useful for post-functionalization after membrane formation.

    9. Facile One-Pot Synthesis of a Polyvinylpyrrolidone-Based Self-Crosslinked Fluorescent Film (pages 616–620)

      Meizhen Yin, Yong Ye, Mengmeng Sun, Naiwen Kang and Wantai Yang

      Article first published online: 7 FEB 2013 | DOI: 10.1002/marc.201200750

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      A PVP-based fluorescent film with stable optical properties is successfully prepared in one pot without any additive. The reaction mechanism of ring-opening and self-crosslinking has been proposed and demonstrated. The morphologies of the fluorescent film are investigated and well interpreted. The principles of this novel PVP-based self-crosslinking method could be extended to the preparation of other multi-functional composites.

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