화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO))
권호 25권 1호
발표분야 [고분자] 자가치유 및 생체/자연모사 첨단 고분자 소재
제목 Self-Healable Dual Dynamic Supramolecular Network with Quadruple Hydrogen Bonding
초록 Self-healing supramolecular network is one of the representative biomimetic intelligent materials that can repair its own structures and functions from the damage by the external environment. Despite their excellent self-healing capabilities, the poor mechanical strengths of self-healing supramolecular networks have limited their widespread industrial applications. In this study, we present a self-healable supramolecular network with enhanced healing capability and mechanical properties through the formation of a dual dynamic network structure composed of quadruple hydrogen bonds and crystalline physical bonds using UPy-end-functionalized semi-crystalline star-shaped supramolecular polymers. The control of crosslinking density for the network was critical to achieving the mechanically robust semi-crystalline supramolecular network with highly efficient healing capability due to their arm-length-dependent phase transformation and dual dynamic healing behavior.
저자 정재우
소속 숭실대
키워드 자가치유; 초분자; 네트워크; 수소결합
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