Highly Self-Healable Polymeric Coating Materials Based on Charge Transfer Complex Interactions with Outstanding Weatherability

Pyong Hwa Hong, Gyeongmin Moon, Jinsil Kim, Kiwon Choi, Min Jae Ko, Ho Gyu Yoon, Sung Woo Hong

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we prepare highly self-healable polymeric coating materials using charge transfer complex (CTC) interactions. The resulting coating materials demonstrate outstanding thermal stability (1 wt% loss thermal decomposition temperature at 420 °C), rapid self-healing kinetics (in 5 min), and high self-healing efficiency (over 99%), which is facilitated by CTC-induced multiple interactions between the polymeric chains. In addition, these materials exhibit excellent optical properties, including transmittance over 91% and yellow index (YI) below 2, and show enhanced weatherability with a ΔYI value below 0.5 after exposure to UV light for 72 h. Furthermore, the self-healable coating materials developed in this study show outstanding mechanical properties by overcoming the limitations of conventional self-healing materials.

Original languageEnglish
Article number4544
JournalPolymers
Volume15
Issue number23
DOIs
Publication statusPublished - 2023 Dec

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

  • charge transfer complex (CTC)
  • engineering plastic
  • polymeric coating
  • self-healing
  • weatherability

ASJC Scopus subject areas

  • General Chemistry
  • Polymers and Plastics

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