Macromolecular Reaction Engineering

Cover image for Vol. 11 Issue 1

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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Best of Macros 2017 is now online. Click here to read about the selected articles and their authors.

Recently Published Articles

  1. Is Modeling the PSD in Emulsion Polymerization a Finished Problem? An Overview

    Nida Sheibat-Othman, Hugo M. Vale, Jordan M. Pohn and Timothy F. L. McKenna

    Version of Record online: 10 MAR 2017 | DOI: 10.1002/mren.201600059

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    Despite assurances to the contrary, it appears that there still remains a significant number of issues to resolve, not just in terms of developing models for emulsion polymerization processes, but also in terms of the basic understanding of important process steps. This article highlights the current state of the art in modeling emulsion polymerizations, and discusses some of the issues that still need to be resolved.

  2. A Novel SiO2-Supported Fluorine Modified Chromium–Vanadium Bimetallic Catalyst for Ethylene Polymerization and Ethylene/1-Hexene Copolymerization

    Qiaoqiao Sun, Lisong Wang, Ruihua Cheng, Zhen Liu, Xuelian He, Ning Zhao and Boping Liu

    Version of Record online: 9 MAR 2017 | DOI: 10.1002/mren.201600055

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    The novel F-modified Cr–V bimetallic catalysts tune the microstructure of the obtained ethylene/1-hexene copolymer that there are more short-chain branch (SCB) in the higher molecular weight (MW) parts and less SCBs in the lower MW parts. The product may be used in various future industrial applications.

  3. Automatic Synthesis of Multimodal Polymers

    Natalie C. Leonardi R., Rick D. Montgomery, Julia Siqueira, Terry McAfee, Michael F. Drenski and Wayne F. Reed

    Version of Record online: 7 MAR 2017 | DOI: 10.1002/mren.201600072

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    The current work introduces a feedback based controller for fully automatic production of multimodal polymers in a single reactor. Each mode of the polymer population has its own molecular weight distribution, produced by automatic, successive introductions of chain transfer agent and continuously controlled semibatch feed of monomer into the reactor.

  4. Coupling of CFD Simulations and Population Balance Modeling to Predict Brownian Coagulation in an Emulsion Polymerization Reactor

    Solmaz Aryafar, Nida Sheibat-Othman and Timothy F. L. McKenna

    Version of Record online: 6 MAR 2017 | DOI: 10.1002/mren.201600054

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    Process scale-up involves relative changes in the time scales associated with mixing, but not with intrinsic reaction rates. Tools that allow to predict how these changes occur, and what to do to maintain product quality during these changes will help avoid lengthy and costly pilot scale testing.

  5. RAFT Inverse Microemulsion Polymerization: Effects of Monomer Solubility and Different Types of Initiators

    Marco Oliveira

    Version of Record online: 2 MAR 2017 | DOI: 10.1002/mren.201600066

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    The influence of monomer solubility and different types of initiators is for the first time shown in a reversible addition–fragmentation chain transfer inverse microemulsion polymerization system. The final pH of the dispersed aqueous phase is determinant in regulating the content of monomer inside the monomer-swollen micelles and therefore the kinetics and molar properties of the polymer chains.

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