Synthesis and Properties of Ionic Polyacetylenes from the Non-catalyst Polymerization of 2-Ethynylpyridine using Dibromoalkanes
발표자
()
초록
내용
Polyacetylenes with peculiar functional pendants confer intriguing functions based on electrophotonic properties, magnetism, chiroptical properties, high gas permeability, etc. The conjugated polyelectrolytes have potentials as materials for electric semiconductivity, energy storage devices such as batteries, permselective membrane, solar cells, and, light-emitting devices. Here, new ionic conjugated polymers were prepared by the non-catalyst polymerization of 2-ethynylpyridine using various dibromoalkands in high yields. The firstly formed ethynylpyridinium salt was susceptible to spontaneous linear polymerization to give the corresponding ionic polyelectrolytes. Various instrumental methods such as NMR, IR, and UV-visible spectroscopies were used for the elucidation of polymer structure. Thermal and electro-optical properties of the conjugated polyelectrolytes were measured and discussed.