نتایج جستجو برای: phenylene terephthalamide

تعداد نتایج: 2167  

Journal: :Organic & biomolecular chemistry 2005
Jonathan A Faiz Neil Spencer Zoe Pikramenou

A mono-6-O-propargyl permethylated beta-cyclodextrin, 3, has been prepared by two synthetic routes as a versatile building block for the construction of cyclodextrin dimers and trimers with a core junction which is potentially electron conducting. Glaser-Hay coupling of 3 gave beta-cyclodextrin dimer 6, and Pd(0)-catalysed coupling allowed the preparation of a cyclodextrin dimer with a 1,4-phen...

2001
P. Fournet J. N. Coleman B. Lahr A. Drury W. J. Blau D. F. O’Brien

We have studied the effects of using a composite fabricated from carbon nanotubes and a host polymer, poly~m-phenylene-vinylene-co-2,5-dioctyloxy-p-phenylene-vinylene! ~PmPV!, as an electron-transport layer in organic light-emitting diodes. Double layer devices using this composite as an electron-transport layer, triple layer devices with a composite electron-transport layer, and poly~9-vinylca...

Journal: :Chemical communications 2009
Malaichamy Sathiyendiran Jing-Yun Wu Murugesan Velayudham Gene-Hsiang Lee Shie-Ming Peng Kuang-Lieh Lu

A prototype of a neutral Re-based metallacyclic rotor, assembled in a one-step process, possesses a para-phenylene rotor that rotates in solution with respect to the stator.

2011
Takanori Shibata Toshifumi Uchiyama Hiroyuki Hirashima Kohei Endo

Two types of enantioselective [2 + 2 + 2] cycloadditions of triynes using chiral rhodium catalysts are disclosed. The intramolecular reaction of ortho-aminophenol-tethered triynes provides chiral tripodal compounds. Consecutive interand intramolecular reactions of ortho-phenylene-tethered triynes provide chiral tetraphenylenes.

Journal: :Microscopy and Microanalysis 2002

Journal: :Acta Crystallographica Section E Structure Reports Online 2014

2005
T. P. Nguyen S. H. Yang J. Gomes

In this paper, we report the experimental results on the optical properties of oligo-phenylene vinylenes (OPVs) formed in nanosize pores of porous silicon substrates. Strong modifications of the photoluminescence properties of nanosize aggregation of OPVs were observed at

Journal: :Journal of the American Chemical Society 2004
Feihe Huang Harry W Gibson

An AB2 monomer containing a bis(m-phenylene)-32-crown-10 and two paraquat moieties was designed and prepared. It self-organized to form a supramolecular hyperbranched polymer in solution.

Journal: :Chemical communications 2015
Karimulla Mulla Shuai Liang Haseena Shaik Eyad A Younes Alex Adronov Yuming Zhao

Phenylene ethynylene-based π-conjugated polymers grafted with dithiafulvenyl groups on their side chains were found to be efficient in dispersing single-walled carbon nanotubes in a selective and controllable way.

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