Macromolecular Reaction Engineering

Cover image for Vol. 11 Issue 4

Editor-in-Chief: Kirsten Severing, Editor: Stefan Spiegel

Online ISSN: 1862-8338

Associated Title(s): Macromolecular Chemistry and Physics, Macromolecular Materials and Engineering, Macromolecular Rapid Communications, Macromolecular Theory and Simulations

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Recently Published Articles

  1. Modeling and Experimentation of RAFT Solution Copolymerization of Styrene and Butyl Acrylate, Effect of Chain Transfer Reactions on Polymer Molecular Weight Distribution

    Jie Jiang, Wen-Jun Wang, Bo-Geng Li and Shiping Zhu

    Version of Record online: 28 JUL 2017 | DOI: 10.1002/mren.201700029

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    A kinetic model for reversible addition–fragmentation transfer (RAFT) solution copolymerization is developed, which takes into account chain transfer to monomer and solvent. Using the model, influences of the chain transfer reactions on Mn and Ð are simulated. The model is verified by experimental RAFT solution copolymerization of styrene (St) and butyl acrylate in toluene.

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    Online Monitoring, Control, and Optimization of Polymer Reactions and Processes

    Klaus-Dieter Hungenberg and Wayne F. Reed

    Version of Record online: 12 JUL 2017 | DOI: 10.1002/mren.201700030

  3. Tailoring Polymer Molecular Weight Distribution and Multimodality in RAFT Polymerization Using Tube Reactor with Recycle

    Liang Xiang, Wen-Jun Wang, Bo-Geng Li and Shiping Zhu

    Version of Record online: 8 JUN 2017 | DOI: 10.1002/mren.201700023

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    A tube reactor with recycle is designed and operated in three different modes: batch, continuous and loop tube reactors. Well-controlled multi-modal MWDs can be readily prepared from the loop reactor, through adjusting the residence time and recycle ratio. The experimental MWDs can be theoretically de-convoluted into a series of narrowly distributed subpopulations as illustrated in the scheme.

  4. Bringing the On-Line Control and Optimization of Semibatch Emulsion Copolymerization to the Pilot Plant

    Alexandr Zubov, Omar Naeem, Svein Olav Hauger, Ala Bouaswaig, Fredrik Gjertsen, Peter Singstad, Klaus-Dieter Hungenberg and Juraj Kosek

    Version of Record online: 6 JUN 2017 | DOI: 10.1002/mren.201700014

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    The implementation of model-based predictive control (MPC) of industrial semibatch emulsion copolymerization is demonstrated. The necessary steps involve the development of process model, its validation and connection with control software, and the realization at pilot-plant scale. Core of the MPC is the control model which must be fast and robust enough to predict the process trajectory reliably and quickly.

  5. Cross Linking Between the Baffling Effect and Phase Inversion During Liquid–Liquid Monomer Mixing

    Jared Cocke and Sebastian Maaß

    Version of Record online: 31 MAY 2017 | DOI: 10.1002/mren.201700015

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    Minor changes in system and component parameters can affect the stability of liquid–liquid mixing in a suspension polymerization. A real-time measurement technology for the monitoring of the particle size distribution is established. The photo-optical method with automated particle identification based on image analysis is adapted and trained to detect phase inversion as a warning system.