Journal of Polymer Science Part A: Polymer Chemistry

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Impact Factor: 3.245

ISI Journal Citation Reports © Ranking: 2013: 14/82 (Polymer Science)

Online ISSN: 1099-0518

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

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  1. New electroactive and electrochromic aromatic polyamides with ether-linked bis(triphenylamine) units

    Sheng-Huei Hsiao and Shou-Lun Cheng

    Article first published online: 25 NOV 2014 | DOI: 10.1002/pola.27465

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    A series of new electroactive aromatic polyamides bearing ether-linked bis(triphenylamine) units were readily prepared from N,N-di(4-aminophenyl)-N′,N′-diphenyl-4,4′-oxydianiline and various aromatic dicarboxylic acids by the phosphorylation polyamidation technique. The polyamides exhibit good solubility in many organic solvents and can be solution-cast into flexible and strong films with high thermal stability. They show well-defined and reversible redox waves during oxidative scanning, with a strong color change from colorless neutral form to green and purple oxidized forms.

  2. Synthesis of highly dispersed, block copolymer-grafted TiO2 nanoparticles within neat block copolymer films

    Shimelis T. Hailu, Saumil Samant, Christopher Grabowski, Michael Durstock, Alamgir Karim and Dharmaraj Raghavan

    Article first published online: 24 NOV 2014 | DOI: 10.1002/pola.27460

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    A comparative dispersion study of PMMA-PS-g-nps showed NPs to be dispersed well in PMMA-PS bcp and PMMA matrix, but strongly aggregated in PS. Pristine NPs aggregate in the bcp matrix. These results strongly suggest that dispersion of NPs in bcp is facilitated by identical bcp end-grafted “ligand” interactions on NPs. In nanocomposite films, the relatively large bcp-g-nps are preferentially sequestered in ordered domains with ligands spanning both the PS and PMMA domains.

  3. Synthesis of diallyl-containing polyimide and the effect of allyl groups on properties

    Ching Hsuan Lin, Tung I. Wong, Meng Wei Wang, Hou Chien Chang and Tzong Yuan Juang

    Article first published online: 24 NOV 2014 | DOI: 10.1002/pola.27459

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    Diallyl-containing soluble polyimide was prepared and transferred it into a thermosetting polyimide via thermal treatment at 300 °C. The amounts of allyl group on Tg, coefficient of thermal expansion, and thermal stability of thermosetting polyimides were discussed by comparing previous data. The experimental data show that thermal properties and dimensional stability of thermosetting polyimides increase with the amounts of cured allyl moieties.

  4. Synthesis and characterization of highly transparent and hydrophobic fluorinated polyimides derived from perfluorodecylthio substituted diamine monomers

    Pradip Kumar Tapaswi, Myeon-Cheon Choi, Saravanan Nagappan and Chang-Sik Ha

    Article first published online: 24 NOV 2014 | DOI: 10.1002/pola.27461

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    Two new perfluorodecylthio substituted aromatic diamines, namely 2,4-diamino-1-(1H,1H,2H,2H-perfluorodecathio)benzene (DAPFB) and 2,2'-bis((1H,1H,2H,2H-perfluorodecyl)thio)[1,1'-biphenyl]4,4'-diamine (BPFBD) were synthesized and polycondensed with 4,4′-(hexafluoroisopropylidene)diphthalic anhydride (6FDA) to produce two new perfluorinated polyimides (PI2 and PI4). A comparative investigation between the perfluorinated PIs (PI2 and PI4) and analogs nonperfluorinated PIs (PI1 and PI3) revealed that PI2 and PI4 exhibited higher solubility, optical transparency, and hydrophobicity but lower moisture absorption, dielectric constant, and thermomechanical properties.

  5. Benzotriazole and benzodithiophene containing medium band gap polymer for bulk heterojunction polymer solar cell applications

    Hande Unay, Naime A. Unlu, Gonul Hizalan, Serife O. Hacioglu, Dilber Esra Yildiz, Levent Toppare and Ali Cirpan

    Article first published online: 24 NOV 2014 | DOI: 10.1002/pola.27467

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    An alternating medium band gap copolymer based on benzotriazole and benzodithiophene unit was synthesized. Photovoltaic properties of the polymer were investigated by conventional device configuration and OSC based on the polymer: PC71BM showed the best PCE of 3.60% with a Voc of 0.67 V, a Jsc of 8.95 mA/cm2, and a FF of 60%. The hole mobility of polymer:PC71BM (1:1, w/w) blend reached up to 7.46 × 10−3 cm2/Vs by the space-charge-limited current (SCLC) method.

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