Lee, Dong Soo Choi, Yong-Seok Hwang, Jae Hyuk Lee, Jin-Hyeong Lee, Woohwa Ahn, Suk-kyun Park, Sungmin Lee, Jung-Hyun Kim, Yong Seok Kim, Dong-Gyun 2024-01-19T14:02:19Z 2024-01-19T14:02:19Z 2021-10-21 2021-08-13 2637-6105 https://pubs.kist.re.kr/handle/201004/116589 Here we describe the use of thiourea linkage as a hydrogen (H) bonding and dynamic covalent dual-functional motif to enhance mechanical versatility in biomimetic polymer networks (BMPNs). By controlling the dynamic thiourea bond exchanges in the covalently cross-linked BMPNs, greatly improved malleability and reprocessability are obtained while maintaining their assorted mechanical characteristics of stiffness, strength, toughness, resilience, and adaptability. Such characteristics enable versatile shape manipulation and mechanical functions of the BMPN-based 3D structures, including shape reconfiguration, welding, shape memory, load bearing, deformation/recovery, repair, and reprocessing. English AMER CHEMICAL SOC MECHANICAL PERFORMANCE SACRIFICIAL BONDS ELASTOMERS ROBUST TOUGH Weldable and Reprocessable Biomimetic Polymer Networks Based on a Hydrogen Bonding and Dynamic Covalent Thiourea Motif Article 10.1021/acsapm.1c00667 1 ACS APPLIED POLYMER MATERIALS, v.3, no.8, pp.3714 - 3720 ACS APPLIED POLYMER MATERIALS 3 8 3714 3720 scie scopus 000685899900004 2-s2.0-85112530901 Materials Science, Multidisciplinary Polymer Science Materials Science Polymer Science Article MECHANICAL PERFORMANCE SACRIFICIAL BONDS ELASTOMERS ROBUST TOUGH covalent adaptable networks biomimetic polymer networks thiourea dynamic covalent bond hydrogen (H) bond