期刊
ACS MACRO LETTERS
卷 5, 期 3, 页码 382-386出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.6b00099
关键词
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资金
- Changjiang Scholars and Innovative Research Team in University [IRT13026]
- National Science Fund for Distinguished Young Scholars [51425403]
- National Natural Science Foundation of China [51425403, 51473087, 91226110, U1430234]
- National Science Foundation [DMR 1501324]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1501324] Funding Source: National Science Foundation
Surface-initiated activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) integrated with mussel-Mspired polydopamine (PDA) chemistry was, for the first time, employed for controlled grafting of poly(glycidyl methacrylate) (PGMA) brushes from carbon nanotubes (CNTs). The strategy initially involved deposition of a PDA layer by spontaneous self-polymerization, which is a benign and nonsurface specific way for anchoring 2-bromoisobutyryl bromide to form initiators on the CNTs. Dense and uniform PGMA brushes were then grown via ARGET ATRP using low concentration of Cu catalyst in different solvents. With abundant highly reactive epoxy groups, the PGMA-grafted CNTs could serve as a versatile platform for further modification or functionalization. Ethylenediamine ligands were facilely introduced, imparting the functionalized CNTs with record-high adsorption ability toward uranium ions among CNTs composites. The integrated strategy combining surface-initiated ARGET ATRP technique and PDA chemistry would provide new opportunities for surface engineering of nanomaterials for advanced applications.
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