Kim, Hyun Ju Choo, Hungo Park, Ok-Kyung You, Nam-Ho Jeong, Youngjin Kim, Hwan Chul Lee, Jae Kwan Ku, Bon-Cheol 2024-01-19T23:33:07Z 2024-01-19T23:33:07Z 2021-09-03 2018-01-15 0167-577X https://pubs.kist.re.kr/handle/201004/121804 Carbon nanotubes (CNTs) exhibit outstanding mechanical and electrical properties. However, CNT fibers (CNTFs) have still problems in realizing these properties because of the weak forces between nanotubes with many defects of individual CNTs. Here, we report a solid-state coupling reaction with an iodophenyl motif to investigate molecular covalent bridging in CNTFs. The stepwise thermochemical processes were chemical functionalization followed by thermal treatment of CNT surface to induce solid-state coupling reaction for molecular bridge of CNTFs. These molecular-bridged CNTFs presented phenomenal boost in mechanical tensile strength (0.93 N/tex) which is 132% higher than pristine CNTFs without a decrease in electrical conductivity (870 S/cm). (C) 2017 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV ELECTRICAL-CONDUCTIVITY CNT FIBERS STRENGTH Mechanical properties enhanced by solid-state coupling reaction for molecular covalent bridges of carbon nanotube fibers Article 10.1016/j.matlet.2017.09.119 1 MATERIALS LETTERS, v.211, pp.243 - 246 MATERIALS LETTERS 211 243 246 scie scopus 000414340900062 2-s2.0-85030703387 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article ELECTRICAL-CONDUCTIVITY CNT FIBERS STRENGTH Carbon nanotube fiber Molecular bridge Cross-linking Thermochemical Mechanical strength