Preparation method for new OLED hole transport material suitable for solution processing

The invention relates to the field of new material preparation and particularly to a preparation method for a new OLED hole transport material suitable for solution processing. The new OLED hole transport material suitable for solution processing, prepared through the method provided by the invention, has 12 hydroxyl groups per molecule, excellent solvent selectivity, very low solubility in toluene and low-polarity solvents at room temperature, but higher solubility in alcohols high-polarity solvents; and by using these properties, the material can form a high-quality thin film from an alcoholic solution and can eliminate the phenomenon that adjacent functional interlayer interfaces are mutually soluble. 本发明涉及新材料制备领域，具体关于种适用于溶液加工的OLED空穴传输新材料的制备方法；本发明方法公开的种适用于溶液加工的OLED空穴传输新材料的制备方法，本专利制备的种适用于溶液加工的OLED空穴传输新材料具有每个分子12个羟基，该材料具有优异的溶剂选择性能，常温下，在甲苯、在低极性的溶剂中溶解度非常小，而对醇类高极性溶剂溶解度较大；利用该性质，该材料能够从醇溶液中形成高质量薄膜，而且能够杜绝相邻功能层间界面出现互溶的现象。