Electrical properties of polyacetylene/polybutadiene blends

Abstract

Microstructural Composites of polyacetylene/polybutadiene blends were prepared by polymerizing polyacetylene in a matrix of polybutadiene. The polyacetylene in the blends can be doped with iodine to produce electrically conducting composites. Thus a new material is formed which retains many of the electrical properties of doped polyacetylene but whose mechanical properties are different from those of either polyacetylene or polybutadiene.

Advanced syntheses and microfabrications of conjugated polymers, C60-containing polymers and carbon nanotubes for optoelectronic applications

“…Therefore, it is the rod-like network of the I 2 -doped polyacetylene in the PI-b-PA copolymers prepared with the cobalt catalyst which greatly reduces the percolation threshold. This is consistent with the fact that the percolation threshold for rod-like conducting particles in an insulating matrix is much less than that for spherical conducting particles in the same insulating matrix [643].…”

Patterned and Controlled Polyelectrolyte Fractal Growth and Aggregations

“…18,19,[38][39][40][41][42][43][44][45][46][47][48] Since the layer-by-layer (LBL) assembly technique was first introduced, [49][50][51][52][53][54] much research has been done in the past decade to fabricate polymer and organic thin films via alternating adsorption of positively and negatively charged species on solid surfaces. Thin film processing by LBL techniques became one of the important thin film processes in electrooptic, [55][56][57][58][59][60][61] electroluminescent, [62][63][64][65] conducting, [66][67][68][69][70] and dielectric layers 71,72 and with functional organic and inorganic nanoparticles. [73][74][75][76][77][78][79][80] On the other hand, after the "soft lithography" technique was successfully introduced, it has also been modified to fabricate more complex patterns on surfaces.…”

“…Since the layer-by-layer (LBL) assembly technique was first introduced, − much research has been done in the past decade to fabricate polymer and organic thin films via alternating adsorption of positively and negatively charged species on solid surfaces. Thin film processing by LBL techniques became one of the important thin film processes in electrooptic, − electroluminescent, − conducting, − and dielectric layers , and with functional organic and inorganic nanoparticles. − On the other hand, after the “soft lithography” technique was successfully introduced, it has also been modified to fabricate more complex patterns on surfaces. − However, most soft lithographic processing, as required in “photolithographic” processing, needs pre- or postprocessing to complete the surface patterns. ,, For example, alkane thiols or silanes were first patterned on gold or silicon oxide, glass, and metal oxides using microcontact printing (μCP). Then polyelectrolytes or polymer precursors, metal ions or particles, colloids or chemically modified polymer latex particles, and biomaterials such as DNA, proteins, and cells are selectively deposited to complete the surface patterns. − Soft lithography and LBL techniques have been combined to fabricate more complex 2-D and 3-D micron- and submicron-sized structures on surfaces. ,,− …”

Optical and electrical characterization of SbCl5 doped cis-1,4-polyisoprene

“…Rubbers, having isolated double bonds with no conjugation, have been used as components in conducting composites or copolymers together with conjugated polymers. Such composites have improved physical properties (solubility, fusibility and meltability) compared with most conjugated conducting polymers [3][4][5]. The report by Thakur and co-workers that some diene rubbers can be doped with halogens to reach conductivities up to 0.01 S/cm [6] quickly reverberated around the butadiene communities and much curiosity about polyisoprene has been generated.…”