Journal of Polymer Science Part A: Polymer Chemistry

Cover image for Vol. 53 Issue 15

1 August 2015

Volume 53, Issue 15

Pages i–iv, 1743–1841

  1. Cover Image

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. You have free access to this content
      Cover Image, Volume 53, Issue 15 (pages i–ii)

      Article first published online: 26 JUN 2015 | DOI: 10.1002/pola.27718

      Thumbnail image of graphical abstract

      Poly(methyl methacrylate-co-2-ureido-5-deazapterines functionalized ethylene methacrylate) (P(MMA-co-EMA-DeAP)) is synthesized via free radical polymerization. On page 1832 (DOI: 10.1002/pola.27657), Fei Wang, Hongting Pu, Ming Jin, Haiyan Pan, Zhihong Chang, Decheng Wan, and Jiang Du demonstrate the single-chain folding of P(MMA-co-EMA-DeAP) and the formation of the nanoparticles in diluted solution via intramolecular quadruple hydrogen-bonding interaction and intramolecular collapsing during the disruption-reformation process of hydrogen bonding triggered by water. P(MMA-co-EMA-DeAP) is dissolved in chloroform and acidified by trifluoroacetic acid (TFA) to disrupt the quadruple hydrogen-bonding. Following extraction of TFA from chloroform with water, the intramolecular quadruple hydrogen-bonding interaction is formed again and single-chain polymer nanoparticles are obtained.

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      Cover Image, Volume 53, Issue 15 (pages iii–iv)

      Article first published online: 26 JUN 2015 | DOI: 10.1002/pola.27719

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      The image shows latex particles obtained from self-emulsion copolymerization of n-butyl α-hydroxymethyl acrylate and n-butyl acrylate. Alkyl α-hydroxymethyl acrylates have a surfactant-like structure and can be potentially used as polymerizable surfactants. On page 1743 (DOI: 10.1002/pola.27623), Chao Peng and Abraham Joy investigate the polymerization of alkyl α-hydroxymethyl acrylates via self-emulsion polymerization under both conventional and RAFT polymerization conditions. Polymerization with almost quantitative conversions can be achieved under both conditions in a short time. In such polymerizations, the described monomer functions as an effective surfactant even at low percentage.

  2. Rapid Communications

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    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
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      Self-emulsion polymerization of baylis–hillman-derived α-hydroxymethyl-substituted acrylates (pages 1743–1747)

      Chao Peng and Abraham Joy

      Article first published online: 28 MAR 2015 | DOI: 10.1002/pola.27623

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      Amphiphilic alkyl α-hydroxymethyl acrylates can be polymerized via self-emulsion polymerization (i.e., without surfactants) under conventional radical and reversible addition-fragmentation chain transfer polymerization conditions. The α-hydroxymethyl acrylates can be copolymerized at very low percentages (∼5%) with conventional monomers such as butyl acrylate under surfactant free conditions. The hydroxyl group of the α-hydroxymethyl acrylates in the resultant latex could potentially be used for further functionalization or for modulation of surface properties.

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      Synthesis of linear cucurbit[7]uril pendent copolymers through radical polymerization: Polymers with ultra-high binding affinity (pages 1748–1752)

      Hao Chen, Haili Ma and Yebang Tan

      Article first published online: 28 MAR 2015 | DOI: 10.1002/pola.27624

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      Cucurbiturils are a series of macrocyclic molecules with high binding affinity. A universal method for the synthesis of cucurbit[7]uril (CB[7]) pendent linear copolymers through free radical copolymerization is presented. CB[7] was firstly grafted with mono-(4-vinylbenzyl) group and then copolymerized with acrylamide based monomers to obtain the desired CB[7] pendent linear copolymers. The copolymers inherit CB[7]'s high binding affinity to guest molecules and they can achieve extremely high binding affinity (over 1012 M−1) with amantadine hydrochloride.

  3. Articles

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. Spotlight Article

      High sensitivity sensing of nitroaromatic explosive vapors based on polytriphenylamines with AIE-active tetraphenylethylene side groups (pages 1753–1761)

      Wenyue Dong, Yuyu Pan, Martin Fritsch and Ullrich Scherf

      Article first published online: 3 APR 2015 | DOI: 10.1002/pola.27631

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      Two polytriphenylamines (P1 and P2) with AIE-active tetraphenylethylene side chains are synthesized. Both polymers show distinct AIE effects and a pronounced fluorescence quenching of solid state films when exposed to trinitrobenzene vapor. For P2, 63% fluorescence quenching is observed after 60 s exposure and 89% after 600 s, respectively. The fluorescence quenching response is comparable to the best performing materials from the literature. Moreover, the quenching ability shows a good reversibility.

    2. Facile synthesis of polyester dendrimer via combining thio-bromo “Click” chemistry and ATNRC (pages 1762–1768)

      Xiaoshan Fan, Zhiguo Hu and Guowei Wang

      Article first published online: 25 MAR 2015 | DOI: 10.1002/pola.27618

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      An efficient synthesis approach to aliphatic polyester dendrimer, poly(thioglycerol-2-propionate) (PTP) was developed by combination of thio-bromo “click” chemistry with atom transfer nitroxide radical coupling (ATNRC). First, repeating units were divergently grown from the end of PS support and the resulting intermediates l-PS-d-PTP (G1-G4) can be easily purified by a simple precipitation in ethanol. Finally, the PTP G-4 was obtained by cleaving the alkoxyamine group at elevated temperature (125 °C).

    3. Synthesis and characterization of novel fluorosilicone rubber using imide modified vinyl-containing fluorosilicone resin as cross-linker (pages 1769–1776)

      Tao Xu, He Liu, Jie Song, Shibin Shang, Zhanqian Song, Kaifei Zou and Chong Yang

      Article first published online: 28 MAR 2015 | DOI: 10.1002/pola.27619

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      A novel imide modified vinyl fluorosilicone resin was synthesized from the natural rosin derivative (maleopimaric acid). With this resin is a new crosslinker in common heat curable fluorosilicone rubber composition, a series of imide-modified fluorosilicone rubbers were obtained and characterized. When the loading of new crosslinker is 2.0 wt %, compared with ordinary fluorosilicone rubber, the tearing strength of obtained fluorosilicone rubber increases by 23.5%, breaking elongation by 18.6% and rebound resilience by 9.7%.

    4. In situ synthesis of ABA triblock copolymer nanoparticles by seeded RAFT polymerization: Effect of the chain length of the third a block on the triblock copolymer morphology (pages 1777–1784)

      Haijiao Kang, Yang Su, Xin He, Shifeng Zhang, Jianzhang Li and Wangqing Zhang

      Article first published online: 23 MAR 2015 | DOI: 10.1002/pola.27620

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      Seeded RAFT polymerization based on the nanoparticles of the PDMA-b-PS diblock copolymer is investigated. This seeded RAFT polymerization affords the in situ synthesis of the core-corona nanoparticles of the PDMA-b-PS-b-PDMA triblock copolymer, in which the middle solvophobic PS block forms the compacted core, and the first solvophilic PDMA block and the introduced third PDMA block form the solvated complex corona.

    5. Synthesis and characterization of polyphenylenes with polypeptide and poly(ethylene glycol) side chains (pages 1785–1793)

      Huseyin Akbulut, Takeshi Endo, Shuhei Yamada and Yusuf Yagci

      Article first published online: 28 MAR 2015 | DOI: 10.1002/pola.27621

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      Two novel strategies to obtain PPP polymers bearing PEG and poly-l-lysine (PLL) side chains are presented: (1) Suzuki coupling polymerization between PEG and polypeptide macromonomers, and (2) NCA graft polymerization over the PPP backbone bearing the primary amine and PEG groups. The approaches comprise the combination of Suzuki coupling and in situ N-carboxyanhydride (NCA) ring-opening polymerization (ROP) processes. The polypeptide macromonomer was prepared by ROP of the corresponding NCA precursor using (2,5-dibromophenyl)methanamine as an initiator.

    6. Synthesis and characterization of phenyl polysiloxane modified polyurea/polyurethanes (pages 1794–1805)

      Sixi Xu, Lisha Xie, Xuecheng Yu, Ying Xiong and Hongding Tang

      Article first published online: 2 APR 2015 | DOI: 10.1002/pola.27627

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      Silicone modified polyurea/urethanes with high phenyl polysiloxane contents were designed and synthesized. They exhibited obviously improved waterproof and heat resistance in comparison to pure polyurthane. An interesting void structure in the polyurea/polyurethane films was observed on the moisture induced crosslinking films.

    7. Structure/reactivity/photoinitiation ability relationships in novel benzo pyrazolo (or imidazo) isoquinolinone derivatives upon visible light LEDs (pages 1806–1815)

      Pu Xiao, Frédéric Dumur, Jing Zhang, Mariem Bouzrati-Zerelli, Bernadette Graff, Didier Gigmes, Jean Pierre Fouassier and Jacques Lalevée

      Article first published online: 13 APR 2015 | DOI: 10.1002/pola.27640

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      The types (nitro- or amino- functional group) and numbers (one or two) of substituent on the isoquinolinone derivatives (IQNs) play significant roles in both their photochemical properties and their photoinitiation ability for photopolymerization upon exposure to the different LEDs. For instance, some initiating systems-based on IQNs exhibit very high efficiency for cationic photopolymerization of epoxides and free radical photopolymerization of acrylates upon exposure to the different LEDs.

    8. Optically active helical polymers with pendent thiourea groups: Chiral organocatalyst for asymmetric michael addition reaction (pages 1816–1823)

      Haiyang Zhang, Wantai Yang and Jianping Deng

      Article first published online: 2 APR 2015 | DOI: 10.1002/pola.27630

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      Optically active helical polymers bearing pendent thiourea groups are prepared, showing remarkably asymmetric catalysis ability toward Michael reaction. The thiourea pendants and the helical polymer backbones work together in favorable synergy effects during catalysis. Product with high yield (85%) and satisfactory enantiomeric excess (72%) is obtained.

    9. Spotlight Article

      Synthesis of amphiphilic polymer networks with guest-host properties (pages 1824–1831)

      Mathis Hodge, Gaumani Gyanwali, Cameron Villines and Jeffery L. White

      Article first published online: 13 APR 2015 | DOI: 10.1002/pola.27637

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      Amphiphilic polymer crosslinked networks with specific lengths linking cyclodextrin (CD) nodes synthesized modularly are presented. Linker type and length variation bring about hydrophilic/hydrophobic tuning of the network. Guest-host capability is adjusted by the size variation of α-, β-, and γ-CDs. Ethylene glycol and polyethylene oxide linkers result in insoluble networks that swell to varying degrees in polar protic, polar aprotic, and chlorinated solvents such as water, methanol, ethanol, dimethylsulfoxide, dimethylformamide, methylene chloride, and chloroform.

    10. From single-chain folding to polymer nanoparticles via intramolecular quadruple hydrogen-bonding interaction (pages 1832–1840)

      Fei Wang, Hongting Pu, Ming Jin, Haiyan Pan, Zhihong Chang, Decheng Wan and Jiang Du

      Article first published online: 15 APR 2015 | DOI: 10.1002/pola.27657

      Thumbnail image of graphical abstract

      The single-chain folding of P(MMA-co-EMA-DeAP) and the formation of the nanoparticles in diluted solution are achieved via supramolecular interaction and intramolecular collapsing during the disruption-reformation process of hydrogen bonding triggered by water.

  4. Corrigendum

    1. Top of page
    2. Cover Image
    3. Rapid Communications
    4. Articles
    5. Corrigendum
    1. You have free access to this content
      Corrigendum: Exploring the synthesis and impact of end-functional poly(3-hexylthiophene) (page 1841)

      Nisha V. Handa, Abigail V. Serrano, Maxwell J. Robb and Craig J. Hawker

      Article first published online: 15 APR 2015 | DOI: 10.1002/pola.27666

      This article corrects:

      Exploring the synthesis and impact of end-functional poly(3-hexylthiophene)

      Vol. 53, Issue 7, 831–841, Article first published online: 7 FEB 2015

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