Kim, Youngnam Jo, Jun Young Park Jimin Lee, Juheon Kim, Jaewoo Jeon, Dae-young Han, Haksoo Jung, Yong Chae 2024-01-12T06:32:33Z 2024-01-12T06:32:33Z 2023-11-21 2023-11 1944-8244 https://pubs.kist.re.kr/handle/201004/79754 https://pubs.acs.org/doi/10.1021/acsami.3c12594 Polyimide is actively applied in various industrial fields because of its strong mechanical properties, owing to the interactions between the polymer chains. Fully aromatic imide structures exhibit high glass-transition temperatures due to the strong interactions between their chains, which hinder chain mobility. Therefore, preparing a material that exhibits self-healing at a low temperature of ≤100 °C and good mechanical properties is challenging. Thus, we prepared imides with four-component semiaromatic structures by adjusting the contents of 4,4′-(hexafluoroisopropylidene)diphthalic anhydride and 4,4′-(4,4′-isopropylidenediphenoxy)bis(phthalic anhydride) to yield four-component self-healable colorless polyimides (f-SH-CPIs) with novel structures, flexibilities, good mechanical properties, and low healing temperatures. The flexibilities and distances between the polymer chains, as the basis of the trade-off relationship between the mechanical properties and healing efficiency, were controlled. These materials may be used as substrates in wearable devices and multilayer insulation that may protect from space dust, cosmic rays, and satellite fragments. English American Chemical Society Challenge for Trade-Off Relationship between the Mechanical Property and Healing Efficiency of Self-Healable Polyimide Article 10.1021/acsami.3c12594 1 ACS Applied Materials & Interfaces, v.15, no.47, pp.54923 - 54932 ACS Applied Materials & Interfaces 15 47 54923 54932 N scie scopus 001111117100001 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article transparentelectrode disulfide bond charge-transfer complex(CTC) thin-multiwalled carbon nanotube (TWCNT) colorless polyimide self-healable