Journal of Polymer Science Part A: Polymer Chemistry
Copyright © 2012 Wiley Periodicals, Inc., A Wiley Company
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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- Self-immolative nanoparticles triggered by hydrogen peroxide and pH
Zhijian Wang, Jianbo Sun and Xinru Jia
Article first published online: 22 APR 2014 | DOI: 10.1002/pola.27203
The azomethine-based oligomers bearing boronate groups and imine moieties in the main chain were synthesized from a dialdehyde monomer and p-phenylenediamine or ethylene diamine, respectively. Based on the oligomers, the nanoparticles with hydrogen peroxide (H2O2) and pH dual-responsive properties were constructed and encapsulated nile red inside. The degradation behavior of nanoparticles and the release of nile red triggered by H2O2 and pH were explored.
- Disulfide-centered star-shaped polypeptide-PEO block copolymers for reduction-triggered drug release
Xiao Chang, Lisha Liu, Yanfei Guan and Chang-Ming Dong
Article first published online: 22 APR 2014 | DOI: 10.1002/pola.27207
Disulfide-centered star-shaped polypeptide-based block copolymers Cy-PZlys-b-PEO were successfully synthesized by combining ROP and thiol-yne chemistry. Despite a liquid crystal phase transition behavior, the inner α-helical PZlys blocks greatly suppressed the crystallinity of the outer PEO blocks. Cy-PZlys-b-PEO self-assembled into nearly spherical micelles, and these micelles were progressively reduced to smaller micelles in 10 mM DTT, exhibiting a reduction-sensitivity. The DOX-loaded micelles presented a reduction-triggered profile, enhancing them useful for intracellular GSH-triggered drug delivery systems.
- Preparation of perfluoro-1,3-propanedisulfonic acid/Nafion®/silica hybrid nanoparticles—thermally stable Nafion® in these silica hybrid nanoparticles even after calcination at 800 °C
Saki Soma, Yohei Mizuguchi, Masashi Sugiya and Hideo Sawada
Article first published online: 22 APR 2014 | DOI: 10.1002/pola.27195
Perfluoro-1,3-propanedisulfonic acid/Nafion/SiO2 hybrid nanoparticles after calcination at 800 °C can exhibit stronger acidity and higher proton conductivity than those before calcination and are applicable to the Friedel-Crafts acylation as well as that before calcination.
- High-performance field-effect transistors based on furan-containing diketopyrrolopyrrole copolymer under a mild annealing temperature
Huajie Chen, Yunlong Guo, Zupan Mao, Dong Gao and Gui Yu
Article first published online: 22 APR 2014 | DOI: 10.1002/pola.27204
Two highly π-extended copolymers were designed and synthesized by copolymerizing furan-flanked diketopyrrolopyrrole units with (E)-2-(2-(thiophen-2-yl)vinyl)thiophene moieties for solution-processed polymer field-effect transistors (FETs). A typical nodular morphology with the ultrasmall lamellar distances of 16.84–19.15 Å had been demonstrated for the polymer thin films, therefore facilitating high-performance charge transport. The highest hole mobility without thermal annealing treatment reached 1.05 cm2 V−1 s−1. For the PDVF-8 thin films annealed at 100 °C, moreover, an improved hole mobility of 1.90 cm2 V−1 s−1 was achieved, among the highest values of the reported polymer-based FETs fabricated from a mild temperature.
- Synthesis and characterization of highly fluorinated poly(phthalazinone ether)s based on AB-type monomers
Xiuhua Li, Yan Gao, Qiang Long and Allan S. Hay
Article first published online: 22 APR 2014 | DOI: 10.1002/pola.27199
A series of highly fluorinated poly(phthalazinone ether)s with high-molecular weights based on AB-type monomers containing methyl or phenyl side groups have been successfully synthesized by nucleophilic addition–elimination reactions and following self-condensation polymerization. The polymers have very high Tgs varying from 337 to 349 °C and show excellent solubility, thermal stability, mechanical properties, high-water contact angles, and absorption edges below 340 nm. These results indicate that the polymers are promising as high-performance materials.