Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers
A direct and nondestructive strategy for growing polymers from the surface of graphene is demonstrated. The technique involves the covalent attachment of an initiator via one-step cycloaddition of a diarylcarbene, followed by the polymerization of 2-hydroxyethyl methacrylate (HEMA) using atom transf...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Published: |
American Chemical Society
2017
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| _version_ | 1797084843573510144 |
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| author | Hu, Z Shao, Q Moloney, M Xu, X Zhang, D Li, J Zhang, C Huang, Y |
| author_facet | Hu, Z Shao, Q Moloney, M Xu, X Zhang, D Li, J Zhang, C Huang, Y |
| author_sort | Hu, Z |
| collection | OXFORD |
| description | A direct and nondestructive strategy for growing polymers from the surface of graphene is demonstrated. The technique involves the covalent attachment of an initiator via one-step cycloaddition of a diarylcarbene, followed by the polymerization of 2-hydroxyethyl methacrylate (HEMA) using atom transfer radical polymerization (ATRP). The functionalization strategy is shown to significantly increase the solubility of the resulting materials (PHEMA-G) and leave the structure of the graphene largely intact. Importantly, the PHEMA-G/poly(p-phenylene benzobisoxazole) (PBO) composite fibers could be obtained by a one-pot polymerization and dry-jet wet spinning process. The nanocomposite fibers exhibited a tensile strength of 3.22 GPa (51.2% higher than PBO) and Young’s modulus of 139.3 GPa (33.7% higher than PBO) at very low PHEMA-G loading (1.0 wt %). This represents an excellent reinforcing efficiency, better than other reports of the graphene/PBO fibers system, and indicates that this material is suitable for applications in composite science. |
| first_indexed | 2024-03-07T02:00:47Z |
| format | Journal article |
| id | oxford-uuid:9d4c4fac-266d-43be-aa4d-e2b2951bd05d |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:00:47Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:9d4c4fac-266d-43be-aa4d-e2b2951bd05d2022-03-27T00:41:55ZNondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibersJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9d4c4fac-266d-43be-aa4d-e2b2951bd05dSymplectic Elements at OxfordAmerican Chemical Society2017Hu, ZShao, QMoloney, MXu, XZhang, DLi, JZhang, CHuang, YA direct and nondestructive strategy for growing polymers from the surface of graphene is demonstrated. The technique involves the covalent attachment of an initiator via one-step cycloaddition of a diarylcarbene, followed by the polymerization of 2-hydroxyethyl methacrylate (HEMA) using atom transfer radical polymerization (ATRP). The functionalization strategy is shown to significantly increase the solubility of the resulting materials (PHEMA-G) and leave the structure of the graphene largely intact. Importantly, the PHEMA-G/poly(p-phenylene benzobisoxazole) (PBO) composite fibers could be obtained by a one-pot polymerization and dry-jet wet spinning process. The nanocomposite fibers exhibited a tensile strength of 3.22 GPa (51.2% higher than PBO) and Young’s modulus of 139.3 GPa (33.7% higher than PBO) at very low PHEMA-G loading (1.0 wt %). This represents an excellent reinforcing efficiency, better than other reports of the graphene/PBO fibers system, and indicates that this material is suitable for applications in composite science. |
| spellingShingle | Hu, Z Shao, Q Moloney, M Xu, X Zhang, D Li, J Zhang, C Huang, Y Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title | Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title_full | Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title_fullStr | Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title_full_unstemmed | Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title_short | Nondestructive functionalization of graphene by surface-initiated atom transfer radical polymerization: an ideal nanofiller for poly(p-phenylene benzobisoxazole) fibers |
| title_sort | nondestructive functionalization of graphene by surface initiated atom transfer radical polymerization an ideal nanofiller for poly p phenylene benzobisoxazole fibers |
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