Macromolecular Rapid Communications

Cover image for Vol. 32 Issue 22

November 15, 2011

Volume 32, Issue 22

Pages 1766–1851

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 22/2011 (page 1766)

      Hyungmin Ahn and Moon Jeong Park

      Article first published online: 15 NOV 2011 | DOI: 10.1002/marc.201190060

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      Front Cover: The facile one-pot synthesis of functional metal nanoparticle-polymer hybrids using a simple photo-chemical method is reported. The hierarchically arranged ionic domains provide well-defined nanoreactors for the synthesis of catalytic metal nanoparticles. Further details can be found in the article by H. Ahn and M. J. Park* on page 1790.

  2. Back Cover

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 22/2011 (page 1855)

      Yongrong Li, Minoru Ashizawa, Satoshi Uchida and Tsuyoshi Michinobu

      Article first published online: 15 NOV 2011 | DOI: 10.1002/marc.201190061

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      Back Cover: Side chain donor-acceptor chromophores pre-pared by “click chemistry”-like tetracyanoethylene addition show a remarkable dual colorimetric detection. The recognition of hard metal ions by the anilino nitrogen atom leads to a decrease in the charge-transfer (CT) band, while a soft metal ion of Ag+ is coordinated to the cyano nitrogen atom, resulting in a bathochromic shift of the CT band. Further details can be found in the article by Y. Li, M. Ashizawa, S. Uchida, and T. Michinobu* on page 1804.

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Macromol. Rapid Commun. 22/2011 (page 1767)

      Article first published online: 15 NOV 2011 | DOI: 10.1002/marc.201190059

  4. Feature Article

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Recent Advances in the Covalent Modification of Graphene With Polymers (pages 1771–1789)

      Horacio J. Salavagione, Gerardo Martínez and Gary Ellis

      Article first published online: 30 SEP 2011 | DOI: 10.1002/marc.201100527

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      A summary of the methodologies used to date to covalently functionalize graphene with polymers is reported. The advantages and drawbacks of the grafting-from and grafting-to methods, and the influence of each in the final properties are discussed. The structure–properties relationships in terms of microstructure and molecular dynamics of polymers are also addressed.

  5. Communications

    1. Top of page
    2. Cover Picture
    3. Back Cover
    4. Contents
    5. Feature Article
    6. Communications
    1. Facile One-Pot Synthesis of Functional Gold Nanoparticle–Polymer Hybrids Using Ionic Block Copolymers as a Nanoreactor (pages 1790–1797)

      Hyungmin Ahn and Moon Jeong Park

      Article first published online: 14 SEP 2011 | DOI: 10.1002/marc.201100449

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      The facile one-pot synthesis of the functional AuNPs-ionic block copolymer hybrids using a simple photochemical method. The sulfonated block copolymers containing ionic domains were proven to be efficient nanoreactors for the synthesis of uniform AuNPs and the hierarchical arrangement of AuNPs into well-defined nanostructures, which play a key role in optoelectronic and catalytic properties.

    2. Preparation of Microporous Melamine-based Polymer Networks in an Anhydrous High-Temperature Miniemulsion (pages 1798–1803)

      Matthias Georg Schwab, Daniel Crespy, Xinliang Feng, Katharina Landfester and Klaus Müllen

      Article first published online: 15 SEP 2011 | DOI: 10.1002/marc.201100511

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      For the first time, the synthesis of a MOP has been accomplished in the droplet phase of an anhydrous miniemulsion. The novel process allows for the tailored synthesis of melamine-based microporous poly(aminal) nanoparticles which are characterized by average diameters of 50–100 nm and high specific surface areas of up to 300 m2·g−1. The methodology presented herein enables full processability of the crosslinked and intrinsically insoluble polymer material and should be in principle applicable to other synthetic protocols available for the synthesis of MOPs. The nanoparticles can be applied as precursors to controlled pyrolysis thus enabling access to highly porous nitrogen-enriched carbon spheres of well-defined morphology.

    3. A Novel Polymeric Chemosensor: Dual Colorimetric Detection of Metal Ions Through Click Synthesis (pages 1804–1808)

      Yongrong Li, Minoru Ashizawa, Satoshi Uchida and Tsuyoshi Michinobu

      Article first published online: 9 SEP 2011 | DOI: 10.1002/marc.201100397

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      Donor–acceptor chromophores that are prepared by the click chemistry-type addition reaction between dialkylanilino donor-activated alkynes and tetracyanoethylene display the dual colorimetric detection of soft and hard metal ions only when they are appended to polymer side chains. The interaction between cyano groups and a soft metal ion of Ag+ is confirmed by the X-ray crystal structure of the small molecular weight model compound.

    4. Multifunctional Conjugated Polymers with Main-Chain Donors and Side-Chain Acceptors for Dye Sensitized Solar Cells (DSSCs) and Organic Photovoltaic Cells (OPVs) (pages 1809–1814)

      Dong Wook Chang, Seo-Jin Ko, Jin Young Kim, Su-Moon Park, Hyo Joong Lee, Liming Dai and Jong-Beom Baek

      Article first published online: 20 SEP 2011 | DOI: 10.1002/marc.201100447

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      A new multifunctional conjugated polymer (RCP-1) with a side chain acceptor demonstrates high performance in both dye sensitized solar cells (DSSCs) and organic photovoltaic cells (OPVs). The power conversion efficiency can reach over 4% in DSSCs with the polymeric dye due to the unique structure of RCP-1. Meanwhile, a moderate efficiency of 1.04% is also achieved in BHJ OPVs based on RCP-1 and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM).

    5. Synthesis of Poly(2-oxazoline)-Based Hydrogels with Tailor-Made Swelling Degrees Capable of Stimuli-Triggered Compound Release (pages 1815–1819)

      Andrew M. Kelly, Angela Hecke, Bianca Wirnsberger and Frank Wiesbrock

      Article first published online: 20 SEP 2011 | DOI: 10.1002/marc.201100409

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      Poly(2-oxazoline)-based hydrogels can be synthesized from solvent-free one step routines under microwave irradiation. Swelling degrees of the hydrogels can be adapted according to the ratio of monomers in the polymerization mixtures. These hydrogels can incorporate organic molecules like Eosin Y that are released only if stimuli like solvent or pH changes are applied.

    6. Synthesis of Branched Polymers under Continuous-Flow Microprocess: An Improvement of the Control of Macromolecular Architectures (pages 1820–1825)

      Florence Bally, Christophe A. Serra, Cyril Brochon and Georges Hadziioannou

      Article first published online: 15 SEP 2011 | DOI: 10.1002/marc.201100429

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      Continuous-flow microprocess enables the convenient synthesis of a library of linear and branched methacrylic polymers through controlled/‘living' polymerization technique. SCVCP via ATRP is performed for the first time in tubular microreactor and generates polymers with improved branching efficiency, and thus higher potential functionality, compared to conventional glassware reactor, as diffusion pathway is decreased.

    7. Novel Biodegradable Block Copolymers of Poly(ethylene glycol) (PEG) and Cationic Polycarbonate: Effects of PEG Configuration on Gene Delivery (pages 1826–1833)

      Chuan Yang, Zhan Yuin Ong, Yi-Yan Yang, Pui Lai Rachel Ee and James L. Hedrick

      Article first published online: 19 SEP 2011 | DOI: 10.1002/marc.201100350

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      Biodegradable block copolymers of poly(ethylene glycol) (PEG) and cationic polycarbonate with well-defined molecular architectures and molecular weights are synthesized by metal-free organocatalytic ring-opening polymerization. Triblock cationic polycarbonate-block-PEG-block-cationic polycarbonate and diblock PEG-block-cationic polycarbonate configurations are investigated in comparison with a cationic polycarbonate without PEG for their influence on key aspects of gene delivery.

    8. Direct Fabrication of Porous Isotactic Poly-1-Butene With Form I From the Melt Using CO2 (pages 1834–1838)

      Lei Li, Tao Liu and Ling Zhao

      Article first published online: 19 SEP 2011 | DOI: 10.1002/marc.201100462

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      Porous isotactic poly-1-butene (iPB-1) with stable form I is directly obtained from the melt by using CO2-assisted batch foaming. Crystallized from the melt after annealing under high-pressure CO2, form I′ was obtained. The deformation of iPB-1 matrix during the foaming process changes the crystallization of iPB-1 melt and makes it crystallize directly into form I but not form I′.

    9. Synthesis of Dendrigraft Poly(ϵ-Caprolactone)s Using Side Hydroxyl Groups for the Grafting of Branch Chains (pages 1839–1845)

      Juan Cheng, Xiujun Ling, Zhenlin Zhong and Renxi Zhuo

      Article first published online: 19 SEP 2011 | DOI: 10.1002/marc.201100465

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      Dendrigraft poly(ϵ-caprolactone)s with high molecular weight are synthesized generation-wise. A linear hydroxyl polyester (zero-generation G0) is synthesized by the copolymerization of ϵ-caprolactone (CL) and 4-(2-benzoxyethoxy)-ϵ-caprolactone (BECL) followed by removal of benzyl groups. Graft copolymerization of CL and BECL onto G0 affords first-generation G1. Repeats of the deprotection/polymerization cycle led to higher generations Gn.

    10. Intrinsically Microporous Polyesters From Betulin – Toward Renewable Materials for Gas Separation Made From Birch Bark (pages 1846–1851)

      Jekaterina Jeromenok, Winfried Böhlmann, Markus Antonietti and Jens Weber

      Article first published online: 19 SEP 2011 | DOI: 10.1002/marc.201100532

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      Betulin can be extracted from birch bark and is used as a diol monomer in the synthesis of microporous polyesters. Cross-linked networks as well as linear or hyperbranched polymers are accessible. The polymers feature intrinsic microporosity and show promise for application as gas separation membranes, e.g., for the separation of CO2.

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