초록 |
Taking the issues on carbon footprint and depletion of petroleum reservoirs into account, isosorbide derived from glucose is highlighted as a potential substitute for petroleum-based aromatics. Isosorbide has chirality and low optical anisotropy and good thermal stability due to its wedge-shaped fused ring structure. In this regard, recent application studies of isosorbide have been focused to utilize its unique and excellent properties as well as benefits of bio-based products. In KITECH, we have been developed isosorbide based specialty chemicals including chiral dopants for cholesteric liquid crystals and photo-polymerizable binders for transparent films using its chirality and low optical anisotropy. Recently, we concentrate on replacing the bisphenol A in various chemicals including dental adhesives and monomers for polyester, polyurethanes and polycarbonates. We will show some recent results in this presentation. |