On June 18, 2021, Lee, Jong Ho published a patent.Name: 2-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine The title of the patent was Transparent polyimide prepared using single-port synthesis. And the patent contained the following:
Title polymer is prepared by dissolving a tetracarboxylic dianhydride, a diamine, and a catalyst and it has excellent properties such as optical transparency, hydrophobicity, water absorption, dielec. constant, thermal-mech. stability, and short production time. The experimental process involved the reaction of 2-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine(cas: 1349171-28-3).Name: 2-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine
The Article related to transparent polyimide single port tetracarboxylic dianhydride diamine catalyst, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Name: 2-(2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyridine