Macromolecular Materials and Engineering

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

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  1. Flexible and UV Resistant Films Based on Thiophene-Substituted Conjugated Microporous Polymers Bearing Alkyl Chains: Tuning of Rigidity into Soft

    Feng Ren, Fei Wang, Yu Pan, Hanxue Sun, Zhaoqi Zhu, Chonghua Ma, Chaohu Xiao, Weidong Liang, Lihua Chen and An Li

    Version of Record online: 22 FEB 2018 | DOI: 10.1002/mame.201700619

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    Conjugated microporous polymers (CMPs) bearing different alkyl-substitutions are synthesized which exhibit interesting transition from insolubility to solubility in most common organic solvents. Taking advantage of its solubility, freestanding films and flexible and transparent UV resistant PDMS films based on CMPs can be easily fabricated, which will greatly improve their processability.

  2. Altering Silk Film Surface Properties through Lotus-Like Mechanisms

    Eileen S. Lintz, Christoph Neinhuis and Thomas Scheibel

    Version of Record online: 21 FEB 2018 | DOI: 10.1002/mame.201700637

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    A completely biologically based, lotus-inspired system for modifying silk film surfaces is presented. The advection of water through films is used to coat silk film surfaces with wax to change their wetting characteristics. Tensile properties are altered, while the protein structure remains the same. The wax coating is easily restored after damage and the films perform well as a biopolymer material.

  3. Antiplasticizing Behaviors of Glucarate and Lignin Bio-Based Derivatives on the Properties of Gel-Spun Poly(Vinyl Alcohol) Fibers

    Chunhong Lu and Ericka Ford

    Version of Record online: 21 FEB 2018 | DOI: 10.1002/mame.201700523

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    Lignin and ammonium glucarate are poly(vinyl alcohol) (PVA) antiplasticizers. Additives give stiff PVA fibers due to intermolecular hydrogen bonding and PVA crystallization. Glucarate crystallizes with PVA in a new form.

  4. 3D Printing/Interfacial Polymerization Coupling for the Fabrication of Conductive Hydrogel

    Erika Fantino, Ignazio Roppolo, Dongxing Zhang, Junfeng Xiao, Annalisa Chiappone, Micaela Castellino, Qiuquan Guo, Candido Fabrizio Pirri and Jun Yang

    Version of Record online: 19 FEB 2018 | DOI: 10.1002/mame.201700356

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    3D printing is coupled with interfacial polymerization to obtain electroactive hydrogels with complex and defined geometry. Conductive hydrogels are created through a two-step procedure: first a digital light processing 3D printing system is used to fabricate 3D structures and then pyrrole is oxidized to polypyrrole, exploiting an interfacial polymerization mechanism, thus creating a conductive phase directly in 3D-printed structure.

  5. Elaboration and Characterization of Advanced Biobased Polyurethane Foams Presenting Anisotropic Behavior

    Pierre Furtwengler, Rodrigue Matadi Boumbimba and Luc Avérous

    Version of Record online: 19 FEB 2018 | DOI: 10.1002/mame.201700501

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    Novel biobased polyurethane foams are elaborated from a synthetized sorbitol-based polyester polyol. The obtained foams' kinetic and mechanical properties are thoroughly investigated. A direct relationship between the foams' elaboration components and the mechanical properties is observed. Unexpected results are obtained, such as unveil anisotropic mechanical properties for these biobased foams.

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