Macromolecular Chemistry and Physics

Cover image for Vol. 211 Issue 14

July 15, 2010

Volume 211, Issue 14

Pages 1503–1617

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Talents & Trends
    5. Full Papers
    1. Macromol. Chem. Phys. 14/2010

      Arti Tewari, Akshay Kokil, Sethumadhavan Ravichandran, Subhalakshmi Nagarajan, Ryan Bouldin, Lynne A. Samuelson, Ramaswamy Nagarajan and Jayant Kumar

      Version of Record online: 12 JUL 2010 | DOI: 10.1002/macp.201090032

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      Front Cover: The cover illustrates the reaction scheme of the enzyme-catalyzed synthesis of pyrrole/EDOT copolymers in aqueous medium at an elevated pH of 5. The reaction is catalyzed by soybean peroxidase (SBP, derived from soybeans depicted in the background). The structure of the active center of SBP is also illustrated. The formation of the black electrically conducting copolymer from pyrrole and EDOT monomers is also presented. Further details can be found in the article by A. Tewari, A. Kokil, S. Ravichandran, S. Nagarajan, R. Bouldin, L. A. Samuelson, R. Nagarajan,* and J. Kumar*on page 1610.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Talents & Trends
    5. Full Papers
  3. Talents & Trends

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Talents & Trends
    5. Full Papers
    1. Trends in Polymer Science

      Contemporary Mass Spectrometry and the Analysis of Synthetic Polymers: Trends, Techniques and Untapped Potential (pages 1507–1529)

      Gene Hart-Smith and Christopher Barner-Kowollik

      Version of Record online: 2 JUL 2010 | DOI: 10.1002/macp.201000107

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      The current Trend article—written in an easily accessible tutorial style fashion—provides an introduction to the fundamental principles of polymer mass spectrometry from the ionisation process itself to the choice of mass analyser. In addition, selected applications are highlighted and commented upon.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Talents & Trends
    5. Full Papers
    1. pH-Responsive Vesicles from a Schizophrenic Diblock Copolymer (pages 1530–1537)

      Jianzhong Du and Rachel K. O'Reilly

      Version of Record online: 18 MAY 2010 | DOI: 10.1002/macp.201000022

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      Polymer vesicles with a switchable corona and membrane were prepared by the assembly of a schizophrenic diblock copolymer in water at acidic or basic pH. The presence of a hydrophobic group at the polymer chain end at low pH strongly influences the morphology of the resultant nanostructure. In addition, the presence of the trithiocarbonate end group and its stability is also key in determining the properties of the resultant nanostructures.

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      Dendronized Polymers with Aromatic Sulfonimide Dendrons (pages 1538–1549)

      Mona Ahmed Abdel-Rahman, Bernd W. Schweizer, Oleg Lukin, Afang Zhang and A. Dieter Schlüter

      Version of Record online: 9 JUN 2010 | DOI: 10.1002/macp.201000031

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      Conformationally restricted dendrons increase the glass transition temperature of dendronized polymers up to the interesting range of 150–160 °C already for the low (second) generation shown.

    3. Fabrication of Aromatic-Aliphatic Aminoketone Polymers with Terminal Fluorine Groups (pages 1550–1558)

      Susann Anders, Wolfgang Schrepp, Lysann Kaßner, Andreas Pohlers, Walter Hoyer and Stefan Spange

      Version of Record online: 17 MAY 2010 | DOI: 10.1002/macp.201000071

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      Aromatic-aliphatic aminoketone polymers with terminal fluorine groups have been synthesized by nucleophilic aromatic substitution reaction. A post-functionalization of the terminal groups can be carried out with strong S-nucleophiles such as mercaptoacetic acid.

    4. Environmentally Friendly Copolyesters Containing 1,4-Cyclohexane Dicarboxylate Units, 1-Relationships Between Chemical Structure and Thermal Properties (pages 1559–1571)

      Corrado Berti, Annamaria Celli, Paola Marchese, Elisabetta Marianucci, Simone Sullalti and Giancarlo Barbiroli

      Version of Record online: 4 MAY 2010 | DOI: 10.1002/macp.201000065

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      New, fully aliphatic, random copolyesters, where the two co-units derive from a poly(alkylene dicarboxylate) and the poly(butylene 1,4-cyclohehanedicarboxylate) (PBCHD) have been synthesized. The two aliphatic polymers are characterized by the extreme versatility of their chemical structure: for example, little changes in the –(CH2)- sequence length or in the cis/trans ratio of the 1,4-cyclohexylene ring cause significant modifications in the final properties.

    5. Poly(ε-caprolactone)-graft-poly(2-(dimethylamino)ethyl methacrylate) Amphiphilic Copolymers Prepared via a Combination of ROP and ATRP: Synthesis, Characterization, and Self-Assembly Behavior (pages 1572–1578)

      Shutao Guo, Weiwei Wang, Liandong Deng, Jinfeng Xing and Anjie Dong

      Version of Record online: 25 MAY 2010 | DOI: 10.1002/macp.201000103

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      PCL-g-PDMAEMAs with well-defined structure were synthesized via combining ring-opening polymerization (ROP) and atom transfer radical polymerization (ATRP). Amphiphilic PCL-g-PDMAEMAs can self-assemble into core–shell nanoparticles. The PCL-g-PDMAEMA nanoparticles exhibit pH- and thermo-sensitivities.

    6. Heterogeneity of Nanofilled EPDM Elastomers Investigated by Inverse Laplace Transform 1H NMR Relaxometry and Rheometry (pages 1579–1594)

      Dumitrita Moldovan, Radu Fechete, Dan Eugen Demco, Eugen Culea, Bernhard Blümich, Volker Herrmann and Manfred Heinz

      Version of Record online: 9 JUN 2010 | DOI: 10.1002/macp.201000086

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      The Payne effect and proton low-field NMR relaxation measurements such as transverse (T2), longitudinal (T1) and longitudinal relaxation times in rotating frame (T) are used to characterize the heterogeneity of filler/filler interactions and chain dynamics in a series of nanofilled EPDM elastomers. A broad variety of fillers with different contents (20 to 70 phr), particle sizes and surface active areas, like carbon black, silane and calcium-carbonates, are studied.

    7. Vinyl-Type Polymerization of Alkylester-Substituted Norbornenes Without Endo/Exo Separation (pages 1595–1601)

      Kerstin Müller, Youngsuk Jung, Do Y. Yoon, Seema Agarwal and Andreas Greiner

      Version of Record online: 22 JUN 2010 | DOI: 10.1002/macp.200900647

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      The vinyl-type polymerization of 9-norborn-5-en-2yl-nonane acid ethyl ester (b) and 2-hexyl-5-norbornene and their copolymerization are investigated with [PdCl(NB)OMe]2/AgSbF6 as a catalyst system. No laborious end/exo monomer norbornene separation is required by introducing an alkyl spacer between the norbornene ring and the ester functionality. Solubility, glass transition temperature and mechanical properties of the copolymers can be tailored by the amount of 9-norborn-5-en-2yl-nonane acid ethyl ester in the copolymer.

    8. Synthesis and Evaluation of Water-Soluble Fluorinated Dendritic Block-Copolymer Nanoparticles as a 19F-MRI Contrast Agent (pages 1602–1609)

      Michihiro Ogawa, Satoshi Nitahara, Hiroyuki Aoki, Shinzaburo Ito, Michiko Narazaki and Tetsuya Matsuda

      Version of Record online: 22 JUN 2010 | DOI: 10.1002/macp.201000100

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      The molecular design by the dendrimer-initiated atom transfer radical block copolymerization method is useful for preparing a new type of 19F-MRI contrast agent. Well-defined water-soluble fluorinated polymer nanoparticles (PNPs) with a high fluorine content were designed. The PNPs were detectable at concentrations lower than 1 μM in 19F-MRI, demonstrating the capability as a highly sensitive contrast agent.

    9. Soybean Peroxidase Catalyzed Enzymatic Synthesis of Pyrrole/EDOT Copolymers (pages 1610–1617)

      Arti Tewari, Akshay Kokil, Sethumadhavan Ravichandran, Subhalakshmi Nagarajan, Ryan Bouldin, Lynne A. Samuelson, Ramaswamy Nagarajan and Jayant Kumar

      Version of Record online: 25 JUN 2010 | DOI: 10.1002/macp.201000046

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      A novel enzyme-catalyzed “green” synthesis of pyrrole/EDOT copolymers in an aqueous medium at near-neutral pH is presented. Soybean peroxidase and H2O2 were utilized as the enzyme catalyst and the oxidant respectively for the copolymer synthesis. After studying the effect of reaction conditions, pyrrole/EDOT copolymers (with conductivities ≈ 10−2 S · cm−1) were synthesized at near-neutral conditions of pH = 5.

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