Macromolecular Chemistry and Physics

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Recently Published Articles

  1. Evaluating Relative Chain Orientation of Amylose and Poly(l-lactide) in Inclusion Complexes Formed by Vine-Twining Polymerization Using Primer–Guest Conjugates

    Tomonari Tanaka, Shota Sasayama, Kazuya Yamamoto, Yoshiharu Kimura and Jun-ichi Kadokawa

    Article first published online: 1 FEB 2015 | DOI: 10.1002/macp.201400603

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    The relative chain orientation of amylose and poly(l-lactide) (PLLA) in inclusion complexes formed by vine-twining polymerization is made clear, by using primer–guest conjugates. The cavity of amylose includes PLLA, but not poly(d-lactide), regardless of the chain orientation of polylactide on the polymerization system.

  2. Enhanced Performance of Graphene–Epoxy Flexible Capacitors by Means of Ceramic Fillers

    Marco Sangermano, Gianfranco Buzzerio, Rita Rizzoli, Luca Ortolani, Vittorio Morandi, Fabrizio Pirri and Alessandro Chiolerio

    Article first published online: 30 JAN 2015 | DOI: 10.1002/macp.201400588

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    Graphene–epoxy flexible capacitors are prepared by graphene–polymer transfer and bonding via UV-cured epoxy adhesive. Ceramic fillers are dispersed into the epoxy resin with the aim of enhancing the capacitive behavior of the final device. Nanoparticle-filled parallel plate capacitors are shown to have superior performance, up to two orders of magnitude better than unfilled samples.

  3. Synthesis of Novel Chain-End-Functionalized Polyethylenes via Thiol-ene Click Chemistry

    Ying Li, Yongjie Zhang, Qian Li, Huayi Li, Shuirong Zheng and Youliang Hu

    Article first published online: 29 JAN 2015 | DOI: 10.1002/macp.201400454

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    A library of low-molecular-weight, narrow-molecular-weight-distribution chain-end-functionalized polyethylenes (Cef-PEs) is prepared highly selectively and efficiently by thiol-ene addition of vinyl-terminated polyethylene (v-PE) with mercaptans under mild conditions. The conversions of all the reactions are up to 95%–100%. All the Cef-PEs are characterized by NMR, GPC, DSC, FT-IR, and TGA. It is found that alkaline mercaptans and solvents were adverse to the thiol-ene click reactions.

  4. Quantitatively Probing Cross-Termination in RAFT Polymerization by an Externally Applied Magnetic Field

    Ling Lv, Jian Zhou, Gang Zou and Qijin Zhang

    Article first published online: 27 JAN 2015 | DOI: 10.1002/macp.201400531

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    Bulk reversible addition-fragmentation chain transfer polymerizations (RAFTPs) of styrene (St) are performed, mediated by (2-cyano-2-propyl)dithiobenzoate (CPDB) and S-1-dodecyl-S-(α, α′-dimethyl-α′′-acetic acid)trithiocarbonate (DDMAT) under different magnetic field strengths. A quantitative parameter RM is proposed to evaluate the polymerization rate retardation due to cross-termination. Calculated RM values for CPDB- and DDMAT-mediated bulk RAFTP of St demonstrate an efficient way to probe cross-termination in situ.

  5. Supramolecular Assembly-Assisted Synthesis of Responsive Polymeric Materials with Controlled Chain Topologies

    Jinming Hu and Shiyong Liu

    Article first published online: 26 JAN 2015 | DOI: 10.1002/macp.201400578

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    Recent advances concerning the fabrication of stimuli-responsive polymeric materials under the assistance of supramolecular self-assembly are summarized. The templated synthesis of linear (multiblock) copolymers, non-linear shaped copolymers, as well as crosslinked nanostructures on the basis of supramolecular assemblies is discussed.

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