Journal of Polymer Science Part A: Polymer Chemistry

Cover image for Vol. 53 Issue 16

Impact Factor: 3.113

ISI Journal Citation Reports © Ranking: 2014: 18/82 (Polymer Science)

Online ISSN: 1099-0518

Associated Title(s): Journal of Polymer Science Part B: Polymer Physics

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  1. Cyclopentyl methyl ether: A new green co-solvent for supplemental activator and reducing agent atom transfer radical polymerization

    Pedro Maximiano, Joana P. Mendes, Patrícia V. Mendonça, Carlos M. R. Abreu, Tamaz Guliashvili, Arménio C. Serra and Jorge F. J. Coelho

    Article first published online: 4 JUL 2015 | DOI: 10.1002/pola.27736

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    A new green solvent, cyclopentyl methyl ether, is used for the first time in solvent mixtures for the successful supplemental activator and reducing agent atom transfer radical polymerization of both activated and non-activated monomers. The “green” nature of the solvent along with the use of low concentrations of soluble metal catalyst during the polymerization makes this technique very attractive for the preparation of polymers for biomedical applications.

  2. RAFT made methacrylate copolymers for reversible pH-responsive nanoparticles

    Turgay Yildirim, Alexandra C. Rinkenauer, Christine Weber, Anja Traeger, Stephanie Schubert and Ulrich S. Schubert

    Article first published online: 2 JUL 2015 | DOI: 10.1002/pola.27734

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    A library of well-defined copolymers of methyl methacrylate (MMA) with 2-(dimethylamino) ethyl methacrylate (DMAEMA), 2-(tert-butylamino)ethylmethacrylate (tBAEMA) and 2-aminoethyl methacrylate hydrochloride (AEMA HCI) was synthesized via RAFT polymerization. The controlled nature of the radical polymerization was demonstrated by kinetic studies. Well-defined nanoparticles from the synthesized copolymers with varying sizes were successfully prepared via the nanoprecipitation method. Depending on the structure and amount of the amino content, the obtained nanoparticles reveal a reversible pH-response. The nanoparticles did not exhibit any cytotoxic effect on L929 cells.

  3. Novel isoindigo-based conjugated polyelectrolytes: Synthesis and fluorescence quenching behavior with water-soluble poly(p-phenylenevinylene)s

    Chun Kou, Xiaolong He, Xueyu Jiang, Yifeng Ni, Ling Liu, Changxin Huangfu and Kuan Liu

    Article first published online: 30 JUN 2015 | DOI: 10.1002/pola.27711

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    Two novel ID-based conjugated polyelectrolytes (+)-PIDPV and (−)-PIDPV were synthesized and both polymers exhibit broad absorption band in the visible region. The fluorescence emission of (+)-PPV can be quenched by the addition of (−)-PIDPV at a very low concentration with KSV =1.01 × 106 M−1 while (−)-PPV gives a larger constant with KSV =1.71 × 106 M−1 in the presence of (+)-PIDPV. The efficient quenching effect is governed by various mechanisms while dynamic quenching is the leading factor. The fluorescence of PPVs is also quenched by the oppositely charged PIDPV in the solid state.

  4. Biocompatible amphiphilic conetwork based on crosslinked star copolymers: A potential drug carrier

    Haiye Wang, Aiwen Qin, Xiang Li, Xinzhen Zhao, Dapeng Liu and Chunju He

    Article first published online: 30 JUN 2015 | DOI: 10.1002/pola.27721

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    Novel “core-first” star polymer-based conetworks were successfully fabricated via sequential atom transfer polymerization. The amphiphilic conetworks (APCNs) exhibit unique swelling behavior, excellent mechanical properties, distinct phase separation, and good cytocompatibility, which are suitable for sustained controlled release of choline theophyllinate where the release rate can be regulated by varying the hydrophilic (HI) composition and crosslinking density. The overall results suggest that APCN is a promising candidate as a drug carrier.

  5. Synthesis of new optically active α,α′,β-trisubstituted-β-lactones as monomers for stereoregular biopolyesters

    Rima Belibel and Christel Barbaud

    Article first published online: 30 JUN 2015 | DOI: 10.1002/pola.27724

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    The use of biodegradable and bioassimilable stereopolymers is innovative for temporary therapeutic applications. Stereopolyesters derived from malic acid were synthesized by anionic polymerization from new optically active α,α′,β-trisubstituted-β-lactones as monomers. The total synthesis and characterization of a series of design lactones and one isotactic homopolyester are described in detail.