Enhanced dispersion of carbon nanotubes in hyperbranched polyurethane and properties of nanocomposites |
| |
Authors: | Rana Sravendra Karak Niranjan Cho Jae Whan Kim Young Ho |
| |
Affiliation: | Department of Textile Engineering, Konkuk University, Seoul 143-701, Korea. |
| |
Abstract: | Hyperbranched polyurethane (HBPU) nanocomposites with multi-walled carbon nanotubes (MWNTs) were prepared by in?situ polymerization on the basis of poly(ε-caprolactone)diol as the soft segment, 4,4'-methylene bis(phenylisocyanate) as the hard segment, and castor oil as the multifunctional group for the hyperbranched structure. A dominant improvement in the dispersion of MWNTs in the HBPU matrix was found, and good solubility of HBPU-MWNT nanocomposites in organic solvents was shown. Due to the well-dispersed MWNTs, the nanocomposites resulted in achieving excellent shape memory properties as well as enhanced mechanical properties compared to pure HBPU. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|