Macromolecular Chemistry and Physics

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Recently Published Articles

  1. Nanomechanics and Origin of Rubber Elasticity of Novel Nanostructured Thermoplastic Elastomeric Blends Using Atomic Force Microscopy

    Shib Shankar Banerjee, Kotnees Dinesh Kumar, Arun K. Sikder and Anil K. Bhowmick

    Article first published online: 6 JUL 2015 | DOI: 10.1002/macp.201500173

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    The PeakForce atomic force microscopy technique was performed on novel nanostructured thermoplastic elastomeric blends to quantify elastic modulus and adhesion force of rubber, plastics and their interfaces. It is observed for the first time that a network-like distribution of nanometric rubber ligaments within the plastic matrix is responsible for the origin of rubber elasticity of these blends.

  2. Dielectric Relaxation Behavior of a Poly(ethylene carbonate)-Lithium Bis-(trifluoromethanesulfonyl) Imide Electrolyte

    Joh Motomatsu, Hidekazu Kodama, Takeo Furukawa and Yoichi Tominaga

    Article first published online: 6 JUL 2015 | DOI: 10.1002/macp.201500125

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    Poly(ethylene carbonate)-based electrolytes are promising materials for lithium batteries because of their unique ion-­conductive properties. Broadband dielectric spectroscopy is used to investigate the correlation between ionic conductivity and dielectric relaxation, and additionally the FT-IR spectroscopy is used to investigate the conformation of polymer chains with ions. These results clarify the ion-conductive mechanism of novel decoupling poly­mer electrolyte systems.

  3. Benzoyl Peroxide/2-Vinylpyridine Synergy in RAFT Polymerization: Synthesis of Poly(2-vinylpyridine) with Low Dispersity at Ambient Temperature

    Juxiang Luo, Mingchun Li, Meihua Xin and Weifu Sun

    Article first published online: 6 JUL 2015 | DOI: 10.1002/macp.201500156

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    Redox-initiated reversible addition fragmentation chain transfer polymerization of 2-vinylpyridine at room temperature without a conventional reducing agent has been successfully realized in the presence of only an oxidizing agent, benzoyl peroxide. It is interesting to note that the number-average molecular weight of poly(2-vinylpyridine) increases with monomer conversion while retaining relatively low dispersity.

  4. Conjugated Polythiophene/Porphyrin Complex for Rapid and Simple Detection of Bacteria in Drinking Water

    Wenmin Yan, Hongbo Yuan, Ruihua Li, Yibing Fan, Yong Zhan, Junjie Qi, Hailong An, Ruimin Niu, Gang Li and Chengfen Xing

    Article first published online: 3 JUL 2015 | DOI: 10.1002/macp.201500188

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    A conjugated polymer-based electrostatic complex of anionic polythiophene with cationic porphyrin has been designed for rapid and simple detection of bacteria infection in drinking water by applying fluorescence resonance energy transfer (FRET) strategy. This assay takes advantage of the light-harvesting property of the conjugated polymer and the ratiometric measurements for minimizing the nonspecific binding effect.

  5. Hysteretic Buckling for Actuation of Magnet–Polymer Composites

    Anansa S. Ahmed and Raju V. Ramanujan

    Article first published online: 3 JUL 2015 | DOI: 10.1002/macp.201500152

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    The development of flexible “artificial muscle” actuators is a topic of interest especially for self-assembly and origami engineering applications. This work studies the actuation of magnet–polymer composites in a novel buckling mode. The stress and strain are optimized to obtain a work density comparable to electroactive polymers. This work provides insight into the development of next generation active materials.