Fabrication of polyketone-grafted multi-walled carbon nanotubes using Grignard reagent and their composites with polyketone
- Authors
- Nam, Jeong Ung; Choi, Eun Yeob; Park, Hye Jin; Kim, C. K.
- Issue Date
- 20-Oct-2018
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Aliphatic polyketone; Carbon nanotubes (A); Pyrenyl Grignard reagent; Polyketone-grafted carbon nanotubes; Composite
- Citation
- COMPOSITES SCIENCE AND TECHNOLOGY, v.167, pp 199 - 205
- Pages
- 7
- Journal Title
- COMPOSITES SCIENCE AND TECHNOLOGY
- Volume
- 167
- Start Page
- 199
- End Page
- 205
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/653
- DOI
- 10.1016/j.compscitech.2018.07.043
- ISSN
- 0266-3538
1879-1050
- Abstract
- Grignard reagent containing pyrene, 1-pyrenylmethylmagnesium bromide (PMgBr), was explored as a novel reactive compatibilizer for producing aliphatic polyketone (PK) composites with multi-walled carbon nanotube (MWCNT) that had improved interfacial adhesion and mechanical strength. 1-Bromomethylpyrene (PBr) was adsorbed on MWCNTs and reacted with Mg to produce PMgBr on MWCNTs (MWCNT-PMgBr). PK-grafted MWCNT (PK-g-MWCNT) was prepared by reacting MWCNT-PMgBr with PK, and its composite with PK was fabricated by melt extrusion. The formation of PK-g-MWCNT was examined by spectroscopy, electron microscopy, and thermal analysis. The PK interfacial adhesion energies with MWCNTs were quantified, and the mechanical strengths of their composites examined. PK-g-MWCNT had the highest interfacial adhesion energy with PK among the MWCNTs. The PK/PK-g-MWCNT composite showed better MWCNT dispersion in PK and interfacial adhesion between MWCNT and PK than the PIC/pristine MWCNT composite. Consequently, the PK/PK-g-MWCNT composite exhibited higher mechanical strength than the PIC/pristine MWCNT composite when the composite contained the same amount of MWCNTs.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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