Effect of methylene spacer length on the molecular mobility and dipole moment of poly(azomethine esters) with azomethinearomatic groups in the ortho position

Investigating the Phase States and Transitions in Polyazomethine Ethers Based on Aromatic Dialdehydes and 4,4′-diamino Triphenylmethane

“…In this context, researchers in many countries are applying themselves to creating materials that retain the properties of liquid crystals and yet do not suffer the rheological shortcomings of the latter [2]. In this regard, polymers containing -CH=N-bonds in the main chain are of considerable interest to polymer chemists [3]. Possessing a regular structure and linear polymer chains, and also with conjugated azomethine bonds present, these high-molecular-weight compounds possess valuable properties: increased thermal stability, semiconductor and optical properties, a liquid crystalline state, and so on.…”