polyacetylene

What effect do solitons have on the properties of polyacetylene?

The result was a silvery film composed of a different form of polyacetylene.

Trans- polyacetylene also has two configurations, depending on the position of the double bonds.

However, there are situations in which acetylene can be made into polyacetylene, and those same conditions will not work on ethylene.

Schematically the structure of polyacetylene is shown below.

Another problem is that the chains in polyacetylene are not neatly ordered, but convoluted and higgledy-piggledy.

The simplest of these is polyacetylene.

Nanofibers can be prepared from polymers such as polyaniline and polyacetylene .

Although the pi-electrons in polyactetylene are delocalized along the chain, pristine polyacetylene is not a metal.

In 1981 Akira Yoshino began research on rechargeable batteries using polyacetylene.

The rings can be isomerized to 1,3-dienes and for this reason polybenzvalene has been investigated as a precursor to polyacetylene.

Polypyrroles are conducting polymers, related members being polythiophene, polyaniline, and polyacetylene.

The compound is of interest as a precursor to fluoropolymers containing double bonds, analogous to polyacetylene.

In 1977 they discovered that doping with iodine vapor could enhance the conductivity of polyacetylene.

Furthermore, polyacetylene can been synthesized via the ring-opening polymerization of cyclooctatetraene.

In 1977, Shirakawa et al. reported high conductivity in oxidized and iodine-doped polyacetylene.

WHAT have the River Severn and polyacetylene in common?

They also occur in polyacetylene, an organic, one-dimensional semiconductor, where they can be invoked to explain many of that material's properties.

These are organic charge-transfer complexes and various linear-backbone conductive polymers derived from polyacetylene.

Most conductive polymers are derivatives of polyacetylene, polyaniline, polypyrrole or polythiophenes.

The two developed the electrical conductivity of polyacetylene along with American physicist Alan Heeger.

In the early 1970's, Dr. Shirakawa developed a technique for producing thin films of the polymer polyacetylene.

Initially, lithium cobalt oxide was used as the cathode and polyacetylene as the anode.

While polyacetylene itself is not very useful, its creation spurred chemists around the world to craft other new polymers that behave like metals or semiconductors.

Chemists initially make polyacetylene in the cis form, and convert this to the trans by heating it to 200 C in helium.