| 초록 |
During last decades, carbon nanotubes (CNTs) have been a focal point of material researches and developments due to their excellent physical, electrical and thermal properties. CNTs can be used for polymer-based composites, energy storage materials, electronic devices, biosensors and many others. Although CNTs are expected to significantly improve performances of materials, there are many issues to be addressed first. The primary issue is homogeneous dispersion and stabilization in common matrices. To provide chemical affinity with matrices, the surfaces of CNTS should be modified. Hence, multi-wall carbon nanotubes (MWNTs) were grafted with hyperbranched poly(ether-ketone) (HPEK) by in-situ polymerization of 3,5-diphenoxybenzoic acid as an AB2 monomer to afford HPEK grafted MWNT (HPEK-g-MWNT). Subsequent sulfonation with chlorosulfonic acid makes HPEK-g-MWNT hydrophilic. As a result, sulfonated HPEK-g-MWNT becomes soluble in water. |
