Macromolecular Reaction Engineering

Cover image for Vol. 6 Issue 5

May 2012

Volume 6, Issue 5

Pages 187–238

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Macromol. React. Eng. 5/2012

      Johannes Katzer, Werner Pauer, Hans-Ulrich Moritz and Michael Wulkow

      Version of Record online: 8 MAY 2012 | DOI: 10.1002/mren.201290012

      Thumbnail image of graphical abstract

      Cover: An extended mini emulsion model balances desorbing and non-desorbing radicals. Thus, for the first time, the experimentally observed acceleration effect of thermally polymerized styrene droplets has been given a physically well-founded explanation and a predictive mathematical model. Further details can be found in the article by J. Katzer, W. Pauer,* and H.-U. Moritz on page 213 and in the article by J. Katzer, W. Pauer,* H.-U. Moritz, and M. Wulkow on page 225.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Macromol. React. Eng. 5/2012

      Version of Record online: 8 MAY 2012 | DOI: 10.1002/mren.201290013

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. Macromol. React. Eng. 5/2012 (pages 187–188)

      Version of Record online: 8 MAY 2012 | DOI: 10.1002/mren.201290011

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Full Papers
    1. The Integrated Deconvolution Estimation Model: Effect of Inter-Laboratory 13C NMR Analysis on IDEM Performance (pages 189–199)

      Mohammad A. Al-Saleh, João B. P. Soares and Thomas A. Duever

      Version of Record online: 13 MAR 2012 | DOI: 10.1002/mren.201100079

      Thumbnail image of graphical abstract

      The reactivity ratios per site type are estimated with the Integrated Deconvolution Estimation Method for a series of ethylene/1-butene copolymers made with a heterogeneous Ziegler–Natta catalyst. Their 13C NMR triad distributions are measured at Dow and at UW using different procedures to demonstrate that inter-laboratory analysis differences do not affect the estimates significantly.

    2. Amphiphilic Poly(4-acryloylmorpholine)/Poly[2-(N-carbazolyl)ethyl acrylate] Random and Block Copolymers Synthesized by NMP (pages 200–212)

      Xeniya Savelyeva, Benoît H. Lessard and Milan Marić

      Version of Record online: 13 MAR 2012 | DOI: 10.1002/mren.201100076

      Thumbnail image of graphical abstract

      NMP allows the facile synthesis of amphiphilic block copolymers containing a water-soluble/biocompatible poly(4-acryloylmorpholine) segment and a fluorescent/hydrophilic poly[2-(N-carbazolyl) ethyl acrylate] segment. These narrow molecular weight distribution block copolymers are synthesized in both organic solution and by ab initio surfactant-free NMP suspension polymerization.

    3. Thermal Polymerization of Styrene, Part 1 – Bulk Polymerization (pages 213–224)

      Johannes Katzer, Werner Pauer and Hans-Ulrich Moritz

      Version of Record online: 19 APR 2012 | DOI: 10.1002/mren.201100075

      Thumbnail image of graphical abstract

      The thermal (spontaneous) polymerization of styrene is critically reviewed. It is emphasized that the often-applied second- and third-order models for the radical formation process are likely to be premature. A present discrepancy between theory and experiment regarding the modeling of the high conversion regime is also discussed.

    4. Thermal Polymerization of Styrene, Part 2 – (Mini)emulsion Polymerization (pages 225–238)

      Johannes Katzer, Werner Pauer, Hans-Ulrich Moritz and Michael Wulkow

      Version of Record online: 17 APR 2012 | DOI: 10.1002/mren.201100081

      Thumbnail image of graphical abstract

      The thermal (spontaneous) polymerization of styrene in compartmentalized systems is investigated. It is shown that the experimentally observed acceleration effect with decreasing droplet/particle size can be explained and mathematically described on a physically well-founded basis by considering the desorption of spontaneously formed monomeric radicals (Mayo mechanism) from the disperse phase.

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