Macromolecular Rapid Communications

Cover image for Vol. 33 Issue 4

February 27, 2012

Volume 33, Issue 4

Pages 265–349

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Macromol. Rapid Commun. 4/2012 (page 265)

      Yu Zhang, Sung-Wook Choi and Younan Xia

      Article first published online: 14 FEB 2012 | DOI: 10.1002/marc.201290015

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      Front Cover: A facile method is developed for modi-fying the pores of an inverse opal scaffold with chitosan microstructures to create a truly three-dimensional micro-environment. The resultant inverse opal scaffold with hierarchically structured pores enhances both cell proliferation and tissue infiltration. Further details can be found in the article by Y. Zhang, S.-W. Choi, and Y. Xia* on page 296.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Macromol. Rapid Commun. 4/2012

      Article first published online: 14 FEB 2012 | DOI: 10.1002/marc.201290016

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Macromol. Rapid Commun. 4/2012 (pages 267–270)

      Article first published online: 14 FEB 2012 | DOI: 10.1002/marc.201290013

  4. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Macromol. Rapid Commun. 4/2012 (page 271)

      Article first published online: 14 FEB 2012 | DOI: 10.1002/marc.201290014

      Thumbnail image of graphical abstract

      Further details on this special series can be found on www.mrc-journal.de

  5. Special Article Series - Review

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Block Copolypeptides Prepared by N-Carboxyanhydride Ring-Opening Polymerization (pages 272–286)

      Gijs J. M. Habraken, Andreas Heise and Paul. D. Thornton

      Article first published online: 31 JAN 2012 | DOI: 10.1002/marc.201100730

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      N-Carboxyanhydride ring-opening polymerization enables the controlled generation of numerous distinctive block copolypeptides possessing potential biomedical applicability. Such structures may offer biocompatibility in addition to stimuli-responsive and self-assembly properties. This review presents the synthetic methodologies employed and applications found for a range of block polypeptides produced of late.

  6. Special Article Series - Communication

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Molecular Bottlebrushes with Polypeptide Backbone Prepared via Ring-Opening Polymerization of NCA and ATRP (pages 287–295)

      Yu Liu, Ping Chen and Zhibo Li

      Article first published online: 5 DEC 2011 | DOI: 10.1002/marc.201100649

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      We report the design and synthesis of molecular bottlebrush bearing poly-l-lysine as backbone. A new bromo-functionalized homopolypeptide is synthesized via ring-opening polymerization, which is then used as an efficient macroinitiator for atom transfer radical polymerization of side chains to give well-defined polypeptide bottlebrushes.

  7. Communications

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Review
    7. Special Article Series - Communication
    8. Communications
    1. Modifying the Pores of an Inverse Opal Scaffold With Chitosan Microstructures for Truly Three-Dimensional Cell Culture (pages 296–301)

      Yu Zhang, Sung-Wook Choi and Younan Xia

      Article first published online: 9 JAN 2012 | DOI: 10.1002/marc.201100695

      Thumbnail image of graphical abstract

      A facile method has been developed for modifying the pores of an inverse opal scaffold with chitosan microstructures when the pore size of the scaffold is much larger than the dimension of a stretching cell. The resultant inverse opal scaffold with hierarchically structured pores enhances both cell proliferation and tissue infiltration.

    2. Novel Source of Trifluoromethyl Radical As Efficient Initiator for the Polymerization of Vinylidene Fluoride (pages 302–308)

      Frédéric Boschet, Taizo Ono and Bruno Ameduri

      Article first published online: 18 JAN 2012 | DOI: 10.1002/marc.201100737

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      Perfluoro-3-ethyl-2,4-dimethyl-3-pentyl is a persistent radical that can generate •CF3 radicals. This feature was used to initiate the polymerization of vinylidene fluoride. The generated PVDF chains were exclusively functionalized by CF3 end-groups, indicating that only the •CF3 radicals could initiate the polymerization. Thermal analyses showed both a good thermostability and high crystallinity, indicating lower proportion of chain defects

    3. Synthesis of Block Copolymers by Combination of Atom Transfer Radical Polymerization and Visible Light-Induced Free Radical Promoted Cationic Polymerization (pages 309–313)

      Muhammet U. Kahveci, Gokhan Acik and Yusuf Yagci

      Article first published online: 17 JAN 2012 | DOI: 10.1002/marc.201100641

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      A new synthetic route for the preparation of block copolymers by mechanistic transformation from ATRP to visible light-induced free radical promoted cationic polymerization is described. A halide end-functionalized polystyrene synthesized by ATRP is utilized as a macro-coinitiator in dimanganese decacarbonyl [Mn2(CO)10] mediated free radical promoted cationic photopolymerization.

    4. Facile Synthesis of Supramolecular Ionic Polymers That Combine Unique Rheological, Ionic Conductivity, and Self-Healing Properties (pages 314–318)

      M. Ali Aboudzadeh, M. Eugenia Muñoz, Antxon Santamaría, Rebeca Marcilla and David Mecerreyes

      Article first published online: 20 JAN 2012 | DOI: 10.1002/marc.201100728

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      A new family of supramolecular ionic polymers is synthesized by a method using (di-/tri-)carboxylic acids and (di-/tri-)alkyl amines. Supramolecular ionic polymers combine unique rheological properties, such as a sharp transition between a viscoelastic gel and viscous liquid, with an unprecedented relationship between ionic conductivity and temperature. This can be used to develop polymeric materials with self-healing properties and ionic conductivity.

    5. Synthesis of Graft Copolymers Based on Poly(2-Methoxyethyl Acrylate) and Investigation of the Associated Water Structure (pages 319–325)

      Irakli Javakhishvili, Masaru Tanaka, Keiko Ogura, Katja Jankova and Søren Hvilsted

      Article first published online: 23 JAN 2012 | DOI: 10.1002/marc.201100698

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      Graft copolymers featuring poly(2-Methoxyethyl Acrylate) grafts are constructed by controlled radical polymerization methods. While reversible addition–fragmentation chain transfer polymerization is employed to build the linear backbones, atom transfer radical polymerization is utilized to attain the target architecture taking the “grafting from” approach. The associated water structure, which provides hints about the materials' blood compatibility, is investigated by differential scanning calorimetry.

    6. Fabrication of Chitosan Single-Component Microcapsules With a Micrometer-Thick and Layered Wall Structure by Stepwise Core-Mediated Precipitation (pages 326–331)

      Yuanyuan Han, Weijun Tong, Yuying Zhang and Changyou Gao

      Article first published online: 18 JAN 2012 | DOI: 10.1002/marc.201100685

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      Chitosan (CS) single-component microcapsules with a micron-thick and layered wall structure were fabricated by a stepwise core-mediated precipitation. With the ease of fabrication, the micron-size wall, and the capability of encoding, the CS microcapsules are expected to find applications in areas of drug delivery, biosensors, as well as diagnosis.

    7. Microwave-Assisted Hydrogel Synthesis: A New Method for Crosslinking Polymers in Aqueous Solutions (pages 332–336)

      Joseph P. Cook, Glenn W. Goodall, Olga V. Khutoryanskaya and Vitaliy V. Khutoryanskiy

      Article first published online: 18 JAN 2012 | DOI: 10.1002/marc.201100742

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      Hydrogels can be synthesised by the microwave irradiation of an appropriate combination of polymers in aqueous solution. This new method of crosslinking yields sterile hydrogels in a one-pot synthesis without the need for further processing and could potentially be applied to a wide range of polymers, resulting in new materials.

    8. A Novel Thermotropic Elastomer based on Highly-filled LDH-SSB Composites (pages 337–342)

      Amit Das, Jinu Jacob George, Burak Kutlu, Andreas Leuteritz, De-Yi Wang, Sandip Rooj, René Jurk, Ramanujam Rajeshbabu, Klaus Werner Stöckelhuber, Vassilios Galiatsatos and Gert Heinrich

      Article first published online: 23 JAN 2012 | DOI: 10.1002/marc.201100735

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      Thermotropic elastomeric composites are prepared based on solution styrene butadiene copolymer and zinc-aluminium layered double hydroxides, using a conventional sulphur curing system. The material develops great contact clarity at room temperature, but becomes totally opaque upon warming.

    9. Annealing Effect on Electrospun Polymer Fibers and Their Transformation into Polymer Microspheres (pages 343–349)

      Ping-Wen Fan, Wan-Ling Chen, Ting-Hsien Lee and Jiun-Tai Chen

      Article first published online: 23 JAN 2012 | DOI: 10.1002/marc.201100734

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      The annealing effect of electrospun poly(methyl methacrylate) (PMMA) fibers and their transformation into microspheres are investigated. The PMMA fibers with an average size of 2.39 μm are first prepared by electrospinning a 35 wt% PMMA solution in DMF. After the electrospun fibers are thermally annealed in ethylene glycol, a non-solvent for PMMA, the surfaces of the fibers undulate and transform into microspheres driven by the Rayleigh instability.

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