Macromolecular Reaction Engineering
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Recently Published Articles
- Controlled Synthesis and Degradation of Poly(N-(isobutoxymethyl) acrylamide) Homopolymers and Block Copolymers
Benjamin King and Benoît H. Lessard
Version of Record online: 28 FEB 2017 | DOI: 10.1002/mren.201600073
Novel water-insoluble poly(acrylamide) homopolymers and block copolymers are synthesized using nitroxide-mediated polymerization (NMP). The kinetics, molecular weight characteristics, and the thermal-mechanical properties are assessed. NMP is successful in synthesizing well-defined pseudo-living poly(acrylamides) and the resulting products are determined to undergo an imidization reaction when heated.
- Inline Turbidity Measurements of Batch Emulsion Polymerization
Dimitrie Bloch, Peter Bröge and Werner Pauer
Version of Record online: 20 FEB 2017 | DOI: 10.1002/mren.201600063
Inline turbidity is shown as a tool to monitor optical properties in the process of emulsification as well as during batch emulsion polymerization. This technique can be used for the detection of the reaction start, to observe droplet formation, and to identify emulsion stability problems.
- Preparation of Forced Gradient Copolymers Using Tube-in-Tube Continuous Flow Reactors
Simon Saubern, Xuan Nguyen, Van Nguyen, James Gardiner, John Tsanaktsidis and John Chiefari
Version of Record online: 27 JAN 2017 | DOI: 10.1002/mren.201600065
A perforated tube-in-tube reactor is used to prepare forced gradient co-polymers using the RAFT controlled radical polymerization method.
- Nitroxide-Mediated Polymerization of 2-Hydroxyethyl Methacrylate (HEMA) Controlled with Low Concentrations of Acrylonitrile and Styrene
Wenwen Mei and Milan Maric
Version of Record online: 25 JAN 2017 | DOI: 10.1002/mren.201600067
Nitroxide-mediated polymerization with SG1/based initiators is used to prepare hydroxyethyl methacrylate (HEMA)-rich copolymers using a small fraction ≈10 mol% of comonomer, preferably acrylonitrile (AN). HEMA/AN copolymerizations exhibit linear degree of polymerization versus conversion with low dispersity (Đ = 1.3–1.4). The chain ends exhibit good fidelity, with HEMA/AN macroinitiators chain extending a second batch of monomers cleanly.
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