POS3-1362
Density-Controlled Radical Chemisorption for Tailoring Carbon Nanotube-Solvent Interfaces
Topic
S3. Processing / Fabrications (Emerging Horizons in Polymer Processing and Fabrication)
When and Where
Sep 29, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Hae Jung SON
Boseok KANG
Presenter(s)
EUNHO RYU (Pohang University of Science and Technology)
Co-Author(s)
Abstract
Conventional liquid-phase acid functionalization of carbon nanotubes (CNTs) inevitably damages their sp² graphitic lattice, severely degrading intrinsic thermal and electrical properties. Herein, we present an ultrafast (~20 s), pseudo-solid-state radical chemisorption platform for precisely controlling the surface chemistry of CNTs. By modulating the activation energy barrier via selected radical initiators under microwave irradiation, we accurately govern the reaction kinetics and the density of distinct functional groups (e.g., carboxylation and amination) without using harsh chemicals. This defect-minimized interface engineering preserves the structural integrity of CNTs while enabling highly solvent-selective, surfactant-free dispersion. Ultimately, this density-controlled radical chemisorption strategy provides a versatile protocol for tailoring CNT interfaces, enhancing their interfacial compatibility with diverse solvents to construct highly efficient electron and phonon transport networks.
