Macromolecular Reaction Engineering

Cover image for Vol. 7 Issue 1

January 2013

Volume 7, Issue 1

Pages 3–63

  1. Cover Picture

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      Macromol. React. Eng. 1/2013

      Raul P. Moraes, Robin A. Hutchinson and Timothy F. L. McKenna

      Article first published online: 10 JAN 2013 | DOI: 10.1002/mren.201270001

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      Cover: High solid content latexes with small particle size (<200 nm diameter) are made possible through the use of highly crosslinked seeds of small particles (several tens of nanometers) that can be mixed with uncrosslinked particles. The idea is that the latter will swell and grow more rapidly, thereby allowing the formation of large particles in the presence of smaller ones-just the opposite of what typically occurs for latexes containing much larger particles. Further details can be found in the article by R. Moraes, R. Hutchinson, and T. McKenna on page 36.

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    1. Macromol. React. Eng. 1/2013

      Article first published online: 10 JAN 2013 | DOI: 10.1002/mren.201270002

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    1. Macromol. React. Eng. 1/2013 (pages 3–4)

      Article first published online: 10 JAN 2013 | DOI: 10.1002/mren.201270003

  4. Editorial

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    2. Cover Picture
    3. Masthead
    4. Contents
    5. Editorial
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    7. Special Article Series - Full Paper
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  5. Frontispiece

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    2. Cover Picture
    3. Masthead
    4. Contents
    5. Editorial
    6. Frontispiece
    7. Special Article Series - Full Paper
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    1. Macromol. React. Eng. 1/2013

      Article first published online: 10 JAN 2013 | DOI: 10.1002/mren.201270004

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      This issue of Macromolecular Reaction Engineering contains articles of the Special Series “New Production and Enabling Technologies in Polymer Reaction Engineering.”

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    1. Investigating Cu(0)-Mediated Polymerizations: New Kinetic Insights Based on a Comparison of Kinetic Modeling with Experimental Data (pages 8–23)

      Alexander P. Haehnel, Sven Fleischmann, Pascal Hesse, Klaus-Dieter Hungenberg and Christopher Barner-Kowollik

      Article first published online: 3 SEP 2012 | DOI: 10.1002/mren.201200030

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      The catalytic mechanism of Cu(0)-mediated polymerization is studied in detail with kinetic modeling underpinned by an experimental solvent polarity study. The density of the data points demonstrates that the commonly applied linear first-order kinetic analysis is not adequate. For some SET-LRP-specific rate coefficients, boundary values are defined that provide a well-controlled polymerization.

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    1. Calorimetric Estimation Employing the Unscented Kalman Filter for a Batch Emulsion Polymerization Reactor (pages 24–35)

      Franklin David Rincón, Marcelo Esposito, Pedro Henrique Hermes de Araújo, Claudia Sayer and Galo Antonio Carrillo Le Roux

      Article first published online: 5 OCT 2012 | DOI: 10.1002/mren.201200044

      Thumbnail image of graphical abstract

      Reaction calorimetry is a useful tool to monitor exothermic polymerization reactions. It is based on the estimation of the heat generated by the reaction, which is associated with the polymerization rate. The performance of an unscented Kalman filter to estimate some key parameters during batch polymerizations is analyzed and compared to an extended Kalman filter.

    2. Small-Particle High-Solid-Content Bimodal Latexes: Highly Crosslinked Small Particles as Pseudo-Inert Nanofillers (pages 36–53)

      Raul P. Moraes, Robin A. Hutchinson and Timothy F. L. McKenna

      Article first published online: 19 NOV 2012 | DOI: 10.1002/mren.201200048

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      Highly crosslinked particles (<30 nm) are used as pseudo-inert nanofillers to produce high-solid-content low-viscosity bimodal latexes. The particles grow in a volumetric rate 25 times lower than large regular particles. Re-nucleation is also used successfully. Latexes with large particles average <200 nm, 57–60 wt% solids and viscosities <1400 mPa · s at 20 s−1 are prepared.

    3. Production of PMMA Nanoparticles Loaded with Praziquantel Through “In Situ” Miniemulsion Polymerization (pages 54–63)

      Laís B. Fonseca, Márcio Nele, Nádia Maria Volpato, Rafael C. Seiceira and José Carlos Pinto

      Article first published online: 3 DEC 2012 | DOI: 10.1002/mren.201200036

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      PMMA nanoparticles loaded with praziquantel are prepared through in situ miniemulsion polymerizations, for future preparation of oral formulations and treatment of schistosomiasis. Obtained results indicate the successful encapsulation of PZQ in all analyzed experimental conditions, with high encapsulation efficiencies and preparation of stable polymer latexes.

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