title: Direct Insulation-to-Conduction Transformation of Adhesive Catecholamine for Simultaneous Increases of Electrical Conductivity and Mechanical Strength of CNT Fibers.
abstract: Increase in conductivity and mechanical properties of a carbon nanotube (CNT) fiber inspired by mussel-adhesion chemistry is described. Infiltration of polydopamine into an as-drawn CNT fiber followed by pyrolysis results in a direct insulation-to-conduction transformation of poly(dopamine) into pyrolyzed-poly(dopamine) (py-PDA), retaining the intrinsic adhesive function of catecholamine. The py-PDA enhances both the electrical conductivity and the mechanical strength of the CNT fibers.
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: Seongwoo
authors.initials: S
authors.lastname: Ryu
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: Jeffrey B
authors.initials: JB
authors.lastname: Chou
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 305-701, Republic of Korea.
authors.forename: Kyueui
authors.initials: K
authors.lastname: Lee
authors.affiliation: Korea Research Institute of Standards and Science, 267 Gajeong-Ro, Yuseong-Gu, Daejeon, 305-340, Republic of Korea.
authors.forename: Dongju
authors.initials: D
authors.lastname: Lee
authors.affiliation: Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 305-701, Republic of Korea.
authors.forename: Soon Hyung
authors.initials: SH
authors.lastname: Hong
authors.affiliation: Engineering Product Development, Singapore University of Technology and Design (SUTD), 20 Dover Drive, Singapore, 138682, Singapore.
authors.forename: Rong
authors.initials: R
authors.lastname: Zhao
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon, 305-701, Republic of Korea.
authors.forename: Haeshin
authors.initials: H
authors.lastname: Lee
authors.affiliation: Department of Mechanical Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Ave., Cambridge, MA, 02139, USA.
authors.forename: Sang-gook
authors.initials: SG
authors.lastname: Kim
keywords: carbon nanotubes; fibers; polydopamine; pyrolysis