광유기전자소재용 프탈로시아닌 유도체의 마이크로파 합성 및 이의 특성에 관한 연구

Abstract

Microwave processing in chemical reaction is mainly due to dielectric polarization such as dipolar and interfacial polarization, although superheating can also be important at rapid heating. Few studies have been reported about the influence of microwave irradiation in the synthesis of organic crystalline materials. It is predicted that the primary nucleation, crystal form and morphologies of organic crystalline materials may be influenced in the microwave irradiation. The feasibility of synthesizing gallium chloride phthalocyanine (GaClPc) was investigated by comparing reaction temperatures under the microwave irradiations with the same factors of conventional synthesis. The polymorph of gallium hydroxide phthalocyanine (GaOHPc) recrystallized from GaClPc through solvent assisted recrystallization method has been investigated. Also a thin layer of MPcs in the fabrication of OLEDs is usually fabricated by vacuum deposition due to their low solubility. In order to apply spin coating technique in the fabrication of a thin layer, the solubility of MPcs should be achieved by substituting suitable functional group in the peripheral benzene ring of phthalocyanine structure. In other hand, microwave technology can be applied for the synthesis of organic materials as green chemical processing with the effiency of energy because of the inherent advantages of microwave synthesis, which is selective, direct, rapid, internal and controllable. In present study, a series of metallophthalocyanine derivatives with different metals have been synthesized mainly from 4-phenoxyphthalonitrile, metal salt and DBU through microwave irradiation as a green chemical procedure.