Challenge for Trade-Off Relationship between the Mechanical Property and Healing Efficiency of Self-Healable Polyimide
- Authors
- Kim, Young Nam; Jo, Jun Young; Park, Jimin; Lee, Juheon; Kim, Jaewoo; Jeon, Dae-young; Han, Haksoo; Jung, Yong Chae
- Issue Date
- Nov-2023
- Publisher
- AMER CHEMICAL SOC
- Keywords
- colorless polyimide; self-healable; transparentelectrode; disulfide bond; charge-transfer complex(CTC); thin-multiwalled carbon nanotube (TWCNT)
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.15, no.47, pp 54923 - 54932
- Pages
- 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 15
- Number
- 47
- Start Page
- 54923
- End Page
- 54932
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/68816
- DOI
- 10.1021/acsami.3c12594
- ISSN
- 1944-8244
1944-8252
- Abstract
- 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 <= 00 C-degrees 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.
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