Journal of Polymer Science Part A: Polymer Chemistry
Copyright © 2012 Wiley Periodicals, Inc., A Wiley Company
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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- UV-responsive degradable polymers derived from 1-(4-aminophenyl) ethane-1,2-diol
Liang Ma, Ryan Baumgartner, Yanfeng Zhang, Ziyuan Song, Kaimin Cai and Jianjun Cheng
Article first published online: 27 FEB 2015 | DOI: 10.1002/pola.27550
A UV-responsive polymer was prepared via condensation polymerization of 2-nitrobenzyl(4-(1,2-dihydroxyethyl)phenyl)carbamate and azalaic acid dichloride. Upon exposure to UV light, the nitrobenzyl urethane protecting group was removed and the deprotected aniline underwent spontaneous 1, 6-elimination reactions, resulting in degradation of the polymer. Nile Red was encapsulated in this novel degradable polymer nanoparticle by conventional emulsion method and triggered burst release of Nile Red was observed when the nanoparticles were irradiated by UV light.
- Synthesis of high thermal stability polybenzoxazoles via Ortho-imide-functional benzoxazine monomers
Kan Zhang, Jia Liu, Seishi Ohashi, Xiaoyun Liu, Zhewen Han and Hatsuo Ishida
Article first published online: 27 FEB 2015 | DOI: 10.1002/pola.27565
A series of imide functional benzoxazine resins were synthesized as precursors for producing cross-linked polyimide. In addition to polymerization of forming cross-linked polyimide, the ortho-imide functional benzoxazine resins can undergo a further smart route to form a more thermally stable cross-linked polybenzoxazole by releasing carbon dioxide. The ortho-imide functional benzoxazine resins show the possibility to form high performance thermosets with low cost and easy processability.
- Investigation of Suzuki–Miyaura catalyst-transfer polycondensation of AB-type fluorene monomer using coordination-saturated aryl Pd(II) halide complexes as initiators
Zilong Zhang, Pan Hu, Xiao Li, Hongmei Zhan and Yanxiang Cheng
Article first published online: 27 FEB 2015 | DOI: 10.1002/pola.27577
Stable aryl Pd(II) halide complexes with auxiliary ligands PCy3 and P(o-tol)3 were successfully synthesized by direct oxidative addition of aryl halide to the corresponding Pd(0) precursors and achieved the catalyst-transfer polymerization to afford the well-defined polymers with triarylamine/H end groups. The complex with P(o-tol)3 has higher activity in the process of Suzuki–Miyaura catalyst-transfer polycondensation, which is comparable with the classical Pd(II) initiator ligated by P(tBu)3.
- Suppressing the long-chain branching in the synthesis of poly(styrene-b-butyl acrylate-b-styrene) in RAFT emulsion polymerization by tuning the interfacial properties
Yunlong Guo, Xiang Gao and Yingwu Luo
Article first published online: 27 FEB 2015 | DOI: 10.1002/pola.27578
In the synthesis of polystyrene-b-poly(n-butyl acrylate)-b-polystyrene triblock copolymer via reversible addition-fragmentation chain transfer emulsion polymerization, PDI is broadened by the formation of long-chain branches (LCBs) during the formation of the third block. Decreasing the interfacial transport resistance suppresses LCB formation, narrowing PDI.
- Effect of branched alkyl side chains on the performance of thin-film transistors and photovoltaic cells fabricated with isoindigo-based conjugated polymers
Gi Eun Park, Jicheol Shin, Dae Hee Lee, Min Ju Cho and Dong Hoon Choi
Article first published online: 21 FEB 2015 | DOI: 10.1002/pola.27555
New isoindigo and di(thienyl)ethylene-containing conjugated polymers with different branched side chains were successfully synthesized. PIDTE-S6 polymer bearing 11-heptyltricosane side chains showed much better charge transport behavior (µ = 4.07 cm2 V−1 s−1) than those of PIDTE-S3 with 11-butyltricosane side chains. In contrast, bulk heterojunction organic photovoltaic cells made from a blend film of PIDTE-S3 and PC61BM demonstrated promising device performance with a power conversion efficiency in the range of 4.9–5.0%.