Macromolecular Reaction Engineering

Cover image for Vol. 6 Issue 2‐3

March 2012

Volume 6, Issue 2-3

Pages 71–118

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. Macromol. React. Eng. 2–3/2012

      Somaieh Salehpour and Marc A. Dubé

      Article first published online: 1 MAR 2012 | DOI: 10.1002/mren.201290005

      Thumbnail image of graphical abstract

      Cover: Step-growth polymerization of glycerol is monitored using in-line ATR-FTIR spectroscopy. Conversion monitoring is accomplished using a univariate method by following the change in the absorbance of the OH peaks in the infrared reactor spectra throughout the course of polymerization. Further details can be found in the article by S. Salehpour, M. A. Dubé* on page 85.

  2. Masthead

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. Macromol. React. Eng. 2–3/2012

      Article first published online: 1 MAR 2012 | DOI: 10.1002/mren.201290006

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. Macromol. React. Eng. 2–3/2012 (pages 71–72)

      Article first published online: 1 MAR 2012 | DOI: 10.1002/mren.201290003

  4. Frontispiece

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. Macromol. React. Eng. 2–3/2012

      Article first published online: 1 MAR 2012 | DOI: 10.1002/mren.201290004

      Thumbnail image of graphical abstract

      This issue of Macromolecular Reaction Engineering contains articles of the Special Series “Sensors, Process Control and Modeling”.

  5. Special Article Series - Full Paper

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. A QM Approach to the Calculation of Reactivity Ratios in Free-Radical Copolymerization (pages 74–84)

      Marco Dossi and Davide Moscatelli

      Article first published online: 23 JAN 2012 | DOI: 10.1002/mren.201100065

      Thumbnail image of graphical abstract

      In a free-radical copolymerization the reactivity of each monomer pair is characterized by suitable reactivity ratios. To support the experimental activity monomer and radical reactivity ratios are calculated through an approach based on quantum chemistry. A collection of entirely computational reactivity ratios for a variety of copolymers is shown proving the potential of the proposed tool.

  6. Full Papers

    1. Top of page
    2. Cover Picture
    3. Masthead
    4. Contents
    5. Frontispiece
    6. Special Article Series - Full Paper
    7. Full Papers
    1. Reaction Monitoring of Glycerol Step-Growth Polymerization Using ATR-FTIR Spectroscopy (pages 85–92)

      Somaieh Salehpour and Marc A. Dubé

      Article first published online: 21 DEC 2011 | DOI: 10.1002/mren.201100071

      Thumbnail image of graphical abstract

      Step-growth polymerization of glycerol is monitored using three different techniques: water production monitoring, hydroxyl value calculation, and ATR-FTIR spectroscopy. In-line or off-line ATR-FTIR spectroscopy is a successful method for monitoring the reaction up to medium conversion and for monitoring composition in polyglycerol hydrogel production.

    2. A Kinetic Model for Non-Oxidative Thermal Degradation of Nylon 66 (pages 93–109)

      Hadiseh Karimi, Mark A. Schaffer and Kim B. McAuley

      Article first published online: 9 DEC 2011 | DOI: 10.1002/mren.201100051

      Thumbnail image of graphical abstract

      A model to predict the rates of undesirable reactions in low-moisture, high-temperature finishing stage of nylon 66 production is presented. Parameters are ranked based on their influence on model predictions, correlation with other parameters, and uncertainty in initial guesses. An MSE criterion is used to determine which parameters should be estimated to match end-group and gas evolution data.

    3. Catalytic Chain Transfer in Continuous Emulsion Polymerization (pages 110–118)

      Niels M. B. Smeets, Tom G. T. Jansen, Johan P. A. Heuts, Alex M. van Herk and Jan Meuldijk

      Article first published online: 12 DEC 2011 | DOI: 10.1002/mren.201100063

      Thumbnail image of graphical abstract

      Catalytic chain transfer is successfully implemented in continuous emulsion polymerization in a pulsed sieve plate column. Control over the MWD can be achieved by adding ppm-levels of the active cobalt(II) complex. The results clearly illustrate that catalytic chain transfer is a promising technique for molecular weight control for large-scale (continuous) emulsion polymerization processes.

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