polyisotsiaania

Polyisotsiaania is a hypothetical conjugated polymer discussed in theoretical materials science and in speculative literature as a potential high-performance organic semiconductor. The term is a coined designation not tied to any experimentally confirmed material. In most treatments, polyisotsiaania is described as a linear, high-molar-mass polymer whose repeating unit features a heteroatom-rich core that favors π-conjugation and planarity.

Its assumed structure consists of alternating heterocyclic rings containing sulfur and nitrogen, connected by short carbon linkers to form a nearly flat backbone. This arrangement is predicted to support delocalized electrons along the chain, enabling semiconducting behavior, tunable by functional substituents. When doped, simulations suggest conductivity can be enhanced without sacrificing thermal stability, while mechanical properties remain robust.

Proposed synthesis routes are theoretical and rely on carefully controlled step-growth polymerizations of functionalized monomers under transition-metal catalysis. In practice, achieving narrow molecular-weight distribution and purification in such systems presents significant challenges, and no laboratory synthesis has been demonstrated to date.

Research attention centers on theoretical modeling of structure–property relationships, processing strategies for solution or melt processing, and comparisons with established conjugated polymers. Polyisotsiaania serves as a framework to explore how backbone planarity, heteroatom content, and dopant chemistry influence performance limits in organic electronics.

See also: Conjugated polymer, Organic electronics, Doping in polymers.