Abstract
Multiwalled carbon nanotube/polycaprolactone (MWNT/PCL) nanocomposites were prepared by in-situ polymerization3, in which functionalized MWNTs (F-MWNTs) and unfunctionalized MWNTs (P-MWNTs) are used as reinforcing materials. The F-MWNTs has aromatic amine (COC6H4-NH 2) on the sidewall, which was prepared by Friedel-Crafts acylation. DSC, DMA, TGA, SEM, FT-IR and polarized optical microscope were used to characterize MWNT/ PCL nanocomposites. It was found that F-MWNTs were well dispersed compared to P-MWNTs and chemically bonded with the polymer as indicated by appearance of amide group in FT-IR spectra. It was found from DSC results that melting temperatures a little increased for both F-MWNT/PCL and P-MWNT/ PCL compared to PCL. However, the crystallization temperature of P-MWNT/PCL and F-MWNT/PCL increased and decreased respectively compared to pure PCL, indicating that two different crystallization mechanisms may exist. The spherulites nature was studied by using polarized optical microscope and was found that PCL, P-MWNT/PCL and F-MWNT/PCL spherulites shows different morphology.
Original language | English |
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Pages | 4156 |
Number of pages | 1 |
Publication status | Published - 2005 |
Externally published | Yes |
Event | 54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 20 Sep 2005 → 22 Sep 2005 |
Conference
Conference | 54th SPSJ Symposium on Macromolecules |
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Country/Territory | Japan |
City | Yamagata |
Period | 20/09/05 → 22/09/05 |