Lim, Min-Young Oh, Jinwoo Kim, Hee Joong Kim, Ka Young Lee, Sang-Soo Lee, Jong-Chan 2024-01-20T06:32:35Z 2024-01-20T06:32:35Z 2021-09-04 2015-08 0014-3057 https://pubs.kist.re.kr/handle/201004/125191 Polyketone (PK) composites were prepared by a polymer powder coating method using carbon nanomaterials, such as carbon nanotube (CNT), graphene oxide (GO), and antioxidant grafted GOs as filler materials. The antioxidant grafted GOs were obtained by grafting hindered amine and hindered phenol, respectively, onto the surface of the GOs. The PK composites containing the carbon nanomaterials showed much improved thermal stabilities and mechanical properties compared to PK. In particular, we found that the antioxidant grafted GOs are more effective in increasing the thermal properties of PK than CNT and GO without any antioxidant moieties. The enhanced thermal stability and mechanical property by the antioxidant grafted GOs can be explained by the combined antioxidant ability of the antioxidant functional groups and the rigid conjugated carbon units in the GOs having the ultrathin sheet shapes. (C) 2015 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD CARBON NANOTUBES ALIPHATIC POLYKETONES NANOCOMPOSITES POLYETHYLENE MONOXIDE DEGRADATION TEMPERATURE STABILITY FUNCTIONALIZATION POLYMERIZATION Effect of antioxidant grafted graphene oxides on the mechanical and thermal properties of polyketone composites Article 10.1016/j.eurpolymj.2015.06.009 1 EUROPEAN POLYMER JOURNAL, v.69, pp.156 - 167 EUROPEAN POLYMER JOURNAL 69 156 167 scie scopus 000359504800014 2-s2.0-84930940910 Polymer Science Polymer Science Article CARBON NANOTUBES ALIPHATIC POLYKETONES NANOCOMPOSITES POLYETHYLENE MONOXIDE DEGRADATION TEMPERATURE STABILITY FUNCTIONALIZATION POLYMERIZATION Graphene Polyketone Antioxidant Thermal stability