Macromolecular Rapid Communications
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: Kirsten Severing
Online ISSN: 1521-3927
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Recently Published Articles
- Self-Assembled Liquid-Crystalline Membranes Form Supramolecular Hydrogels via Hydrogen Bonding
Version of Record online: 16 FEB 2017 | DOI: 10.1002/marc.201600762
Small molecules automatically self-assemble into liquid-crystalline membranes to form supramolecular hydrogels with an interlayer spacing of 40 nm. The membrane domains act as physical crosslinks in these hydrogels via the cooperative hydrogen-bonding between membranes and linear polymers. These hydrogels show unique properties, such as temperature-dependent mechanical performance/optical transmittance, which have potential applications in biological membranes, drug release, and optical filters.
- Bioinspired Design of a Robust Elastomer with Adaptive Recovery via Triazolinedione Click Chemistry
Jing Huang, Lijie Zhang, Zhenghai Tang, Siwu Wu, Nanying Ning, Haibin Sun and Baochun Guo
Version of Record online: 15 FEB 2017 | DOI: 10.1002/marc.201600678
Inspired by “sacrificial bond”, the clusters based on hydrogen bonds, which form a separated microphase, are engineered into a pre-crosslinked diene rubber via triazolinedione click chemistry. The clusters serve as sacrificial bonds during stretching efficiently dissipate energy, improving the overall mechanical properties of the rubber. Simultaneously, their hierarchical stability endows the rubber with promising triple-shape memory behavior.
- Synthesis of Hydroxy-Functionalized Cyclic Olefin Copolymer and Its Block Copolymers with Semicrystalline Polyolefin Segments
Xiangyang Song, Lijun Yu, Takeshi Shiono, Tariqul Hasan and Zhengguo Cai
Version of Record online: 15 FEB 2017 | DOI: 10.1002/marc.201600815
Living/controlled copolymerization of norbornene and polar monomer has been achieved with remarkably high activity by using the fluorenylamide–ligated titanium complex to produce hydroxy-functionalized cyclic olefin copolymer and its block copolymers with semicrystalline polyolefin sequences.
- Omnidirectional Shape Memory Effect via Lyophilization of PEG Hydrogels
Di Chen, Xuhui Xia, Tuck W. Wong, Hao Bai, Marc Behl, Qian Zhao, Andreas Lendlein and Tao Xie
Version of Record online: 14 FEB 2017 | DOI: 10.1002/marc.201600746
A novel shape memory programming method is presented utilizing lyophilization of a crosslinked hydrogel with a thermal transition in its dry state. The method allows significant omnidirectional shrinkage upon heating triggered recovery from a porous dried gel to a compact structure, which can hardly be achieved by other programming methods.
- A Bunch-Like Tertiary Amine Grafted Polysulfone Membrane for VRFBs with Simultaneously High Proton Conductivity and Low Vanadium Ion Permeability
Qinglong Tan, Shanfu Lu, Jiangju Si, Haining Wang, Chunxiao Wu, Xianfeng Li and Yan Xiang
Version of Record online: 13 FEB 2017 | DOI: 10.1002/marc.201600710
Polysulfone membranes grafted with bunch-like tertiary amine groups are successfully synthesized with very high proton to vanadium ion selectivity for vanadium redox flow batteries (VRFBs). The battery with the as-synthesized membrane demonstrates an impressive Coulombic efficiency of 98.9%, energy efficiency of 90.9%, and outstanding chemical stability, showing promising potential in the development of highly efficient and low-cost VRFBs.