Journal of Polymer Science Part A: Polymer Chemistry

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Impact Factor: 3.543

ISI Journal Citation Reports © Ranking: 2012: 12/83 (Polymer Science)

Online ISSN: 1099-0518

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

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  1. Selective nucleophilic additions to poly(methacrylate)s containing isothiocyanate moieties in the side chains and their application in cross-linking

    Ryota Seto, Kozo Matsumoto and Takeshi Endo

    Article first published online: 15 APR 2014 | DOI: 10.1002/pola.27189

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    Reactivity of isothicyanate moiety containing polymethacrylate in the side chain with amine, alcohol, or thiol was investigated. The isothiocyanate moiety containing polymethacrylates in the side chain reacted with amines without a catalyst. Conversely, the isothiocyanates did not react with alcohol or thiols under the same condition applied to the amines. Addition of alcohol or thiol to the isothiocyanate needs catalysts. A diamine or diol was added to the isothicyanates to prepare networked polymers.

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    Synthesis and solid-state self-assembly of poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)s and single-walled carbon nanotubes

    Haoyu Tang, Ying Ling, Yong Deng and Donghui Zhang

    Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27193

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    A series of coil-rod poly(ethylene glycol)-b-poly(γ-benzyl-l-glutamate)s (PEG-b-PBLGs) with α-helical conformations have been prepared from methoxypoly(ethylene glycol) amine (mPEG-NH2)-mediated ring-opening polymerization of γ-benzyl-l-glutamic acid based N-carboxylanhydride. PEG-b-PBLGs form a lamellar structure where PBLG segments pack into hexagonal arrays when frod is less than 0.28. Incorporation of single-walled carbon nanotube (SWCNT) causes an increase of the d-spacing of both lamellar and hexagonal packing, suggesting the intercalation of SWCNTs into the PEG-b-PBLGs matrices the SWCNTs are oriented normal to the lamellar interface.

  3. Synthesis and properties of long-chain branched poly(ether sulfone)s by self-polycondensation of AB2 type macromonomers

    Mitsutoshi Jikei, Daisuke Uchida, Kazuya Matsumoto, Ryohei Komuro and Masataka Sugimoto

    Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27188

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    Long-chain branched poly(ether sulfone)s (PESs) are synthesized via self-polycondensation of AB2 macromonomers. Gel permeation chromatography with multiangle light scattering detection and solution viscosity measurements suggest that the molecular shape of long-chain branched PESs changes from hyperbranched to a linear-like architecture, depending on the molecular weight of the AB2 macromonomers. Rheological measurements suggest the presence of strongly entangled chains in the long-chain branched PES synthesized from the high-molecular-weight macromonomer.

  4. Alkylamines-intercalated α-zirconium phosphate as latent thermal anionic initiators

    Osamu Shimomura, Keisuke Maeno, Atsushi Ohtaka, Shunro Yamaguchi, Junko Ichihara, Kiyoko Sakamoto and Ryôki Nomura

    Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27191

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    The reaction of glycidyl phenyl ether (GPE) with α-zirconium phosphate (α-ZrP) intercalated 1-aminoalkanes 1-aminopropane (α-ZrP·Pr), 1-aminobutane (α-ZrP·Bu), 1-aminooctane (α-ZrP·Oct), and 1-aminohexadecane (α-ZrP·Hed) was carried out and these intercalation compounds performed well as latent thermal initiators. Especially, α-ZrP·Hed have the potential to initiate reaction on heating while remaining stable during storage around ambient temperature.

  5. Tuning the low critical solution temperature of polymer brushes grafted on single-walled carbon nanotubes and temperature dependent loading and release properties

    Xin Jia, Guoxiang Zhang, Wei Li, Wenbo Sheng and Cuihua Li

    Article first published online: 14 APR 2014 | DOI: 10.1002/pola.27186

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    An easy and reliable method is developed to tune the low critical solution temperatures (LCSTs) of thermo-responsive polymer brushes grafted on single-walled carbon nanotubes (SWCNTs), and to study the LCST-dependent drug-loading and drug-release properties of these polymer-modified SWCNTs. The copolymers grafted on SWCNTs are retrieved by 1 M NaOH to evaluate their molecular weights and LCSTs. Additionally, the pristine properties of SWCNTs are preserved.