Lustrous flexible thin films of semiconducting cyclic polyacetylene (c-PA) have been synthesized and characterized. Rapid and ... Here we demonstrate the synthesis of cyclic polyacetylene (c-PA), or [∞]annulene, via homogeneous tungsten-catalysed ... studies are presented to elucidate the topological differences compared with traditionally synthesized linear polyacetylene. ...

... Synthesis of cyclic polyacetylene offers fresh take on classic semiconducting polymer. by Mark ... polyacetylene. One telling feature is that the double bonds in cyclic polyacetylene are almost entirely trans, the ... Cyclic polyacetylene is the largest annulene isolated to date, forming a circle of over 200 C-H units connected by alternating ... "I think people will be studying this material, just like they have linear polyacetylene, for a long time," says Adam S. Veige ...

Fungal polyacetylenes. OCLC 155934882. Cambie, R.C.; Davis, B.R. (1983). A century of chemistry at the University of Auckland. ...

title = "Conformational defects in Durham polyacetylene",. abstract = "Polyacetylene prepared by the Durham precursor route can ... Polyacetylene prepared by the Durham precursor route can be obtained in a disordered form by thermal conversion of a solution- ... N2 - Polyacetylene prepared by the Durham precursor route can be obtained in a disordered form by thermal conversion of a ... AB - Polyacetylene prepared by the Durham precursor route can be obtained in a disordered form by thermal conversion of a ...

Abdel-Raouf MA, Liegener CM, Ladik J. A cluster model study of various polyacetylene-polymethineimine copolymers. Solid State ... A cluster model study of various polyacetylene-polymethineimine copolymers. / Abdel-Raouf, M. A.; Liegener, C. M.; Ladik, J. In ... Abdel-Raouf, M. A. ; Liegener, C. M. ; Ladik, J. / A cluster model study of various polyacetylene-polymethineimine copolymers. ... Abdel-Raouf, MA, Liegener, CM & Ladik, J 1988, A cluster model study of various polyacetylene-polymethineimine copolymers, ...

Vibrational frequencies of polyacetylene with a charged soliton are calculated for finite chain lengths using the molecular ... Mori Y, Kurihara S. Calculation of localized vibrational modes around a soliton in trans-polyacetylene using the molecular ... Calculation of localized vibrational modes around a soliton in trans-polyacetylene using the molecular orbital method. In: ... Dive into the research topics of Calculation of localized vibrational modes around a soliton in trans-polyacetylene using the ...

Cytoprotective Polyacetylenes Inspired by Panaxytriol Hartung, John 2012 Theses Chemistry 27. (I) Zinc complexes as synthetic ...

Organic insulators (e.g., undoped trans-polyacetylene; cyanoethyl pullulan, CEP[55]), for organic-based FETs.[54] ...

Takada, K.; Matsuya, H.; Masuda, T.; Higashimura, T. Gas permeability of polyacetylenes carrying substituents. J. Appl. Polym. ... for instance rigid-chain linear polymers such as polyacetylenes [5], polymers of intrinsic microporosity (PIMs) [6], TR- ...

Su, W. P., Schrieffer, J. & Heeger, A. J. Solitons in polyacetylene. Phys. Rev. Lett. 42, 1698 (1979). ... In a similar vein as the aforementioned anomalous Hall conductance in periodic systems, topological solitons in polyacetylene, ...

HPLC analysis of polyacetylenes. Christensen, L. P. & Christensen, K. B., 2010, High Performance Liquid Chromatography in ... Bioactivity of polyacetylenes in food plants. Christensen, L. P., 2010, Bioactive Foods in Promoting Health: Fruits and ... Bioactive polyacetylenes of carrots in cancer prevention. Christensen, L. P., 2013, Bioactive Dietary Factors and Plant ...

Polyacetylenes as a new alignment medium to measure residual dipolar couplings for chiral organic molecules. Tetrahedron ... Based Enantiodifferentiation in Lyotropic Liquid Crystalline Phases Based on Helically Chiral Polyacetylenes. Angewandte Chemie ... Based Enantiodifferentiation in Lyotropic Liquid Crystalline Phases Based on Helically Chiral Polyacetylenes. Angewandte Chemie ...

Polyacetylenes. Lachnophyllum & Matricaria Esters. Biotopes:. Meadows. Flower Visitors:. Several Apidae. Dolerus haematodes. ...

Sesquiterpene lactones, polyacetylenes, achilleine and flavonoids such as apigenin. The volatile oil contains chamazulene, ...

Christensen, L. P. and Brandt, K. Bioactive polyacetylenes in food plants of the Apiaceae family: occurrence, bioactivity and ...

The herb contains polyacetylenes that have both anti-bacterial & anti-fungal properties. Burdock Root contains high amounts of ...

Uwai K, Ohashi K, Takaya Y. Exploring the structural basis of neurotoxicity in C(17)-polyacetylenes isolated from water hemlock ...

The trans-rich polyacetylene film contains trans segments of various lengths while the cis-rich polyacetylene film is composed ... RAMAN SPECTRA OF POLYACETYLENE AND HIGHLY CONDUCTING IODINE-DOPED POLYACETYLENE. Issei Harada, Mitsuo Tasumi, Hideki Shirakawa ... The Raman spectra of conductive polyacetylene-iodine complexes and their parent polymers have been studied. ...

Polyacetylenes. Sesquiterpene lactone. Bitter principle - myriogenin. Coumarin, flavonoid, lignan. Actions. Anti-inflammatory, ...

... polyacetylenes, xanthenoids, anthraquinones, porphyrins, thiophenes, curcuminoids, or phenalenones [16]. However, not all of ... polyacetylenes, xanthenoids, anthraquinones, porphyrins, thiophenes, curcuminoids, and phenalenones [16]. ...

In 1987, BASF introduced polyacetylene with double the electrical conductivity of copper. ...

Christensen LP, Brandt K (2006) Bioactive polyacetylenes in food plants of the Apiaceae family: Occurrence, bioactivity and ...

Both compounds, the first being a polyacetylene and the second a sesquiterpene, were not identified in any of the studied ... polyacetylenes, and steroids. These compounds have a potential source of natural bioactive and agrochemical compounds [1,2]. ...

The herb Eclipta alba contains mainly coumestans i.e. wedelolactone and demethylwedelolactone, polypeptides, polyacetylenes, ...

Polyacetylene has a property of being insoluble in any solvent, a property which contributed to the formation of the film. Even ... The significance of polyacetylene being a typical quasi-one dimensional material was recognized very early. In this sense, an ... The polyacetylene films synthesized until then were an isotropic material in which the fibrils were entangled in three- ... After returning to Japan, I continued to work on polyacetylene. What I did first was to shed light on the chemical reaction ...

... polyacetylenes, and a diverse array of pathogenesis-related (PR) defense proteins (Broekaert et al., 1997; Garcia-Olmedo et al ...

Screening for polyacetylenes in some Umbelliferae plants and isolation of panaxynol and falcarindiol from the root of Heracleum ...

Poly(iminoborane)s (PIBs) are main group polymers with a B=N backbone, formally isoelectronic to polyacetylene. Surprisingly, ...

METAL NONMETAL TRANSITION IN POLYACETYLENE SYNTHETIC METALS Kivelson, S. A., Salkola, M. I. 1991; 44 (3): 281-291 View details ... 2-PHASE COEXISTENCE IN THE METALLIC STATE OF POLYACETYLENE PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT Salkola, M. I., Kivelson ...