نتایج جستجو برای: polythiophene

تعداد نتایج: 567  

2003
Brian A. Mattis Paul C. Chang Vivek Subramanian

We present the results of studies on the electrical and physical modifications to Poly(3hexylthiophene), upon thermal annealing. Thermally-induced performance modifications and thermal stability of polythiophene thin film transistors are explored. We observe substantial mobility improvements in devices annealed at low temperatures (<80°C), as well as increases in on/off ratios by two orders of ...

Journal: :Chemical communications 2011
Hiroshi Awaji Tsukasa Nakahodo Hisashi Fujihara

New heterosegment-junctioned hybrid nanotubes of polythiophene and heterometallic nanoparticles (Pd, Au NPs) have been synthesized by sequential electropolymerization of terthiophene-modified Pd and Au NPs in a nanoporous template.

2012
Bing Wang Huanxiang Yuan Chunlei Zhu Qiong Yang Fengting Lv Libing Liu Shu Wang

For most molecule-targeted anticancer systems, intracellular protein targets are very difficult to be accessed by antibodies, and also most efforts are made to inhibit protein activity temporarily rather than inactivate them permanently. In this work we firstly designed and synthesized multifunctional polymer-drug conjugates (polythiophene-tamoxifen) for intracellular molecule-targeted binding ...

Journal: :Chemical science 2017
Pierre Boufflet Abby Casey Yiren Xia Paul N Stavrinou Martin Heeney

A convenient method of introducing pentafluorobenzene (PFB) as a single end-group in polythiophene derivatives is reported via in situ quenching of the polymerization. We demonstrate that the PFB-group is a particularly useful end-group due to its ability to undergo fast nucleophilic aromatic substitutions. Using this molecular handle, we are able to quantitatively tether a variety of common nu...

2006
Josephine Bea Chang Chenming Hu Josephine B. Chang Amanda Murphy Jason Lee

2017
Gerald Caple Dale Russell Kathy Phelan

Polymer matrices have now been built to involve site specific receptors. These receptor sites have been called templates and can be used for molecular recognition.1,2,3 In some ways the templated site in the polymer cavity is analogous to an enzymatic site.' Such templated polymer systems show promise of enhancing selectivity in chromatographic separations of organic molecules. It is also known...

2014
M. Sevilla R. Mokaya

Highly porous carbons have been successfully synthesized by chemical activation of polythiophene with KOH. The activation process was performed under relatively mild activation conditions, i. e., a KOH/polymer weight ratio of 2 and reaction temperatures in the 600 – 850 oC range. The porous carbons thus obtained possess very large surface areas, up to 3000 m/g, and pore volumes of up to 1.75 cm...

Journal: :Nanoscale 2012
Masashi Mitsumori Tsukasa Nakahodo Hisashi Fujihara

New chiral magnetite nanoparticles with a polymerizable group produced polymer composite films on an electrode surface and the hybrid nanotubes of magnetite nanoparticles and polythiophene from their template-based electropolymerization.

Journal: :The journal of physical chemistry. B 2012
David Zanuy Julien Preat Eric A Perpète Carlos Alemán

The sensing response of 15-crown-5-ether functionalized polythiophene to Li+, Na+, and K+ has been investigated at the atomistic level using molecular dynamics simulations. The stability associated with all the identified binding sites has been corroborated by quantum mechanical calculations. Although the cavity of the macrocycle is not the most visited binding site, such receptor is responsibl...

Journal: :Physical chemistry chemical physics : PCCP 2012
Han Yan Denghua Li Kun Lu Xiangwei Zhu Yajie Zhang Yanlian Yang Zhixiang Wei

Conjugated polymers are promising replacements for their inorganic counterparts in photovoltaics due to their low cost, ease of processing, and straightforward thin film formation. New materials have been able to improve the power conversion efficiency of photovoltaic cells up to 8%. However, rules for rational material design are still lacking, and subtle chemical structure variations usually ...

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