Linear-backbone "polymer blacks" (polyacetylene, polypyrrole, polyindole and polyaniline) and their copolymers are the main class of conductive polymers. (wikipedia.org)
The linear-backbone polymers such as polyacetylene, polypyrrole, and polyaniline are the main classes of conductive polymers. (parrot.org)
Cyclic5
Synthesis of cyclic polyacetylene offers fresh take on classic semiconducting polymer. (acs.org)
Thin films of cyclic polyacetylene could prove useful in flexible electronic devices. (acs.org)
Cyclic polyacetylene is the largest annulene isolated to date, forming a circle of over 200 C-H units connected by alternating double and single bonds. (acs.org)
Another approach produced cyclic polyacetylene in a soluble form that could be chemically modified. (acs.org)
The Florida team first made the circular compound in 2016, and spent the intervening time confirming that it was indeed cyclic, rather than linear, polyacetylene. (acs.org)
Polymer2
The material could be a useful addition to the polymer electronics toolbox, and researchers are keen to understand how its physical and electronic properties compare to those of its linear sibling . (acs.org)
Check out at the tutorial on snapping linear polyacetylene or the advanced tutorial on the yield point and moduli of cross-linked epoxy polymers , or let us know if you want a demo on how ReaxFF can be used to model polymer formation, degradation and mechanical properties! (scm.com)
Sumerlin1
I think people will be studying this material, just like they have linear polyacetylene, for a long time," says Adam S. Veige of the University of Florida, who led the work with his colleague Brent S. Sumerlin . (acs.org)
Solitons1
Interchain interactions result in a linear potential between the solitons and, if sufficiently strong, bind them into pairs resulting in an exponential suppression of the soliton density. (rug.nl)
Synthesis1
Many of today's flexible electronic devices can trace their ancestry back to the first synthesis of linear polyacetylene in 1958. (acs.org)
Active2
ACS's Standard Package lets you stay up to date with C&EN, stay active in ACS, and save. (acs.org)
Artemisia is rich in biologically active substances (terpenes, flavonoids, polyacetylenes, coumarins, organic acids, etc.) and is traditionally used in folk and official medicine and in the food industry, as a spice for the preparation of vermouth, liqueurs, etc. (bgflora.eu)
Form1
: 623 The most general form of saturated hydrocarbons, (whether linear or branched species, and whether with without one or more rings) is C n H 2 n +2(1- r ) , where r is the number of rings. (wikipedia.org)
Wide1
Combining these advantages, the LHU@MIP had a wide linear range (1-100 µM), good detection sensitivity (0.56 µM), and a distinct color change (from blue to pink). (bvsalud.org)
In 1977, Alan J. Heeger, Alan MacDiarmid and Hideki Shirakawa reported similar high conductivity in oxidized iodine-doped polyacetylene. (wikipedia.org)
Electronic1
This proposal seeks to build upon our recent report in Science that group 13 centres, when linked in extended linear chains, display delocalised electronic properties. (bath.ac.uk)
Applications2
Polyacetylene itself did not find practical applications, but drew the attention of scientists and encouraged the rapid growth of the field. (wikipedia.org)
Non-linear log-Sobolev inequalities for the Potts semigroup and applications to reconstruction problems. (zbmath.org)
Properties2
The good linear transmission properties of the topological waveguide arising from the strong localization of light to the topological boundary is demonstrated through successful high-speed transmission of 30 Gb/s non-return-to-zero and 56 Gb/s pulse amplitude 4-level data. (nature.com)
The linear transmission properties of the topological waveguide are characterized using high-speed testing and shown to support the high-speed transmission of 30 Gb/s non-return-to-zero (NRZ) and 56 Gb/s pulse amplitude modulation 4-level (PAM4) data. (nature.com)
Polymers3
This compound is conceptually important, as the discovery of polyacetylene and its high conductivity upon doping helped to launch the field of organic conductive polymers. (wikipedia.org)
Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures. (nih.gov)
Molecular3
The resulting polyacetylene was linear, of high molecular weight, displayed high crystallinity, and had a regular structure. (wikipedia.org)
Theoretical studies on electrical conductance in nanostructures which consist of two semi-infinite leads separated by a typical molecular wire are carried out within Green's function (GF) formalism in the linear regime. (ac.ir)
Based on this formalism, the electrical conductance of a linear molecular wire such as poly-acetylene is calculated. (ac.ir)
Functional1
J. A. Berger , de Boeij, P. L. , and van Leeuwen, R. , " Analysis of the viscoelastic coefficients in the Vignale-Kohn functional: The cases of one- and three-dimensional polyacetylene " , PHYSICAL REVIEW B , vol. 71, 2005. (polytechnique.fr)
Atoms1
A segment of trans-polyacetylene Polyacetylene consists of a long chain of carbon atoms with alternating single and double bonds between them, each with one hydrogen atom. (wikipedia.org)
Bandgap2
Roncali, J. Synthetic principles for bandgap control in linear π-conjugated systems. (nature.com)
Strikingly, such a phase transition does not affect the tendency of quasi-linear bandgap narrowing, and a metallization with an ultra-broad tunability of 1.3 eV redshift is observed at higher pressures. (go.jp)
Electrical1
Electrical conductivity in doped polyacetylene. (nature.com)
Organic1
Polyacetylene (IUPAC name: polyethyne) usually refers to an organic polymer with the repeating unit [C2H2]n. (wikipedia.org)
Single1
Despite the conjugated nature of the polyacetylene backbone, not all of the carbon-carbon bonds in the material are equal: a distinct single/double alternation exists. (wikipedia.org)
Nature1
Compounds called polyacetylenes also occur in nature, although in this context the term refers to polyynes, compounds containing multiple acetylene groups ("poly" meaning many), rather than to chains of olefin groups ("poly" meaning polymerization of). (wikipedia.org)
Methods1
A variety of methods have been developed to synthesize polyacetylene, from pure acetylene and other monomers. (wikipedia.org)