Macromolecular Rapid Communications

Cover image for Vol. 33 Issue 22

November 23, 2012

Volume 33, Issue 22

Pages 1893–1969

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Review
    6. Communications
    1. Macromol. Rapid Commun. 22/2012 (page 1893)

      Hui-Juan Zhang, Yan Xin, Qiang Yan, Li-Lin Zhou, Liao Peng and Jin-Ying Yuan

      Version of Record online: 9 NOV 2012 | DOI: 10.1002/marc.201290078

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      Cover: A light responsive microgel based on host-guest interaction and Michael addition click reaction has been designed and synthesized under ambient conditions. The reversible size control of the microgel particle could be achieved by alternative UV and visible light irradiations. Further details can be found in the article by H.-J. Zhang, Y. Xin, Q. Yan, L.-L. Zhou, L. Peng, and J.-Y. Yuan* on page 1952.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Review
    6. Communications
    1. Macromol. Rapid Commun. 22/2012

      Version of Record online: 9 NOV 2012 | DOI: 10.1002/marc.201290079

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Review
    6. Communications
  4. Review

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Review
    6. Communications
    1. Polymers with Upper Critical Solution Temperature in Aqueous Solution (pages 1898–1920)

      Jan Seuring and Seema Agarwal

      Version of Record online: 7 SEP 2012 | DOI: 10.1002/marc.201200433

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      Why are polymers with UCST in water underrepresented in academic and applied research? This review tries to answer this question. Furthermore, a guide for the synthesis of novel UCST polymers is presented and possible handles to tune the phase transition temperature, sharpness of transition, hysteresis, and effectiveness of phase separation are discussed.

  5. Communications

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Review
    6. Communications
    1. Core–Shell Structured Polystyrene/BaTiO3 Hybrid Nanodielectrics Prepared by In Situ RAFT Polymerization: A Route to High Dielectric Constant and Low Loss Materials with Weak Frequency Dependence (pages 1921–1926)

      Ke Yang, Xingyi Huang, Liyuan Xie, Chao Wu, Pingkai Jiang and Toshikatsu Tanaka

      Version of Record online: 13 AUG 2012 | DOI: 10.1002/marc.201200361

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      In situ RAFT polymerization as a novel route to prepare PS@BaTiO3 core–shell structured nanocomposites with excellent dielectric performance is reported. The insulating PS shells are robustly anchored on the BaTiO3 surface to prevent the agglomeration of the nanoparticles, and also act as the polymer matrix. The PS@BaTiO3 nanocomposites exhibit high dielectric constants, low dielectric loss, and weak frequency dependence over a wide range of frequencies.

    2. Pd-Catalysed Direct Arylation Polymerisation for Synthesis of Low-Bandgap Conjugated Polymers and Photovoltaic Performance (pages 1927–1932)

      Shu-Wei Chang, Huw Waters, Jeff Kettle, Zi-Rui Kuo, Chun-Han Li, Chin-Yang Yu and Masaki Horie

      Version of Record online: 31 JUL 2012 | DOI: 10.1002/marc.201200368

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      Low-bandgap conjugated copolymer based on a donor–acceptor structure can be synthesised via palladium-complex catalysed direct arylation polymerisation. The polymerisation condition has been optimised to afford high-molecular- weight polymers up to Mn = 70 k using NMP as a solvent. The obtained polymers are used to fabricate organic photovoltaic devices with fullerene derivatives.

    3. Interpolymer Complexes and Polymer Compatibility (pages 1933–1937)

      A. Eckelt, J. Eckelt and B. A. Wolf

      Version of Record online: 20 AUG 2012 | DOI: 10.1002/marc.201200431

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      Intrinsic viscosities [η] for joint aqueous solutions of dextran and pullulan are measured as a function of the composition of the polymer blend. The deviations from additivity testify highly favorable interactions between the chemically identical but sterically different monomeric units of the two polysaccharides.

    4. Controlled ROP of β-Butyrolactone Simply Mediated by Amidine, Guanidine, and Phosphazene Organocatalysts (pages 1938–1944)

      Cédric G. Jaffredo, Jean-François Carpentier and Sophie M. Guillaume

      Version of Record online: 13 AUG 2012 | DOI: 10.1002/marc.201200410

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      Yes they can! Basic organocatalysts of the guanidine (TBD), amidine (DBU), and phosphazene (BEMP) type effectively polymerize β-butyrolactone (BL). Poly(3-hydroxybutyrate)s (PHBs) with controlled molecular features, that is, controlled molar masses, narrow molar mass distributions, and well-defined functional end groups, are thus formed in a living process at 60 °C from bulk monomer.

    5. Synthesis and Characterization of β-CD-Coated Polystyrene Microspheres by γ-Ray Radiation Emulsion Polymerization (pages 1945–1951)

      Dezhi Xu, Mozhen Wang, Xuewu Ge and Michael Hon-Wah Lam

      Version of Record online: 10 AUG 2012 | DOI: 10.1002/marc.201200437

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      A novel way of online SEC–IR coupling is presented. Collecting IR spectra with fully optimized sensitivity in special designed flow cells allows mathematical solvent suppression. This enables a universally applicable SEC–IR measurement in potentially all common SEC eluents. The 2D spectral chromatogram of a PS–PMMA blend in THF was recorded and serves as proof-of-principle.

    6. Facile and Efficient Fabrication of Photoresponsive Microgels via Thiol–Michael Addition (pages 1952–1957)

      Hui-Juan Zhang, Yan Xin, Qiang Yan, Li-Lin Zhou, Liao Peng and Jin-Ying Yuan

      Version of Record online: 21 AUG 2012 | DOI: 10.1002/marc.201200439

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      A light responsive microgel system based on host–guest interaction and Michael addition click reaction has been designed and synthesized under ambient conditions. The dissociation and association of β-CD/azobene inclusion interaction could be tuned reversibly by alternative UV and visible light irradiations, which results in the reversible size control of the microgel particle.

    7. Spiropyran-Conjugated Pluronic as a Dual Responsive Colorimetric Detector (pages 1958–1963)

      Yeon Jeong Oh, Jeong A. Nam, Abdullah Al-Nahain, Sangkug Lee, Insik In and Sung Young Park

      Version of Record online: 21 AUG 2012 | DOI: 10.1002/marc.201200416

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      A biocompatible photo and thermoresponsivespiropyran-conjugated Pluronic has been synthesized. The spiropyran retains its photochromic properties within the polymer after exposure to different condition. SP form of SP-PL is colorless but after irradiation with UV–Vis light, it converts to purple-colored zwitterionic MC form wherein after exposure to heat orange-colored quoinoidal form is appeared.

    8. Responsive Polyelectrolyte Multilayers Assembled at High Ionic Strength with an Unusual Collapse at Low Ionic Strength (pages 1964–1969)

      Joseba Irigoyen, Lulu Han, Irantzu Llarena, Zhenwei Mao, Changyou Gao and Sergio E. Moya

      Version of Record online: 30 AUG 2012 | DOI: 10.1002/marc.201200471

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      PDADMAC/PSS 11 layer PEM assembled at 3 M NaCl collapse at low ionic strength and fully rehydrated at 3 M NaCl. PEMs have been studied by QCM and AFM and it has been observed that at low ionic strengths there is a reduction, approximately a 46%, of the original thickness, and release of water. The original thickness and water content are recovered when the PEM is exposed back to 3 M NaCl.

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