| 초록 |
Graphene oxide (GO) has been used for a precursor for graphene by chemical and thermal reductions. Its functional groups such as carboxylic acid, hydroxyl, epoxide groups were used for reaction sites for grafting polymers on the GO sheet. These sites were reacted with ε-caprolactam, ε-caprolactone, and ethylene glycol for more compatible fillers of nylon6, polycaprolactone, and polyethyleneterephthalate. The mechanical strengths of these nanocomposites were improved a lot as compared to their neat polymers. These sites were also used for reaction of atomic transfer radical polymerization (ATRP) initiators which further reacted with poly(2-(diethylamino) ethyl methacrylate) (PDEA). The PDEA-grafted GO was tested for loading and releasing valuable aromatic monomers by π-π interactions. GOs in nanocomposites were also reduced by UV light. This method opens a new environmentally clean method for reduction that do not rely on the use of chemicals or high temperatures. |
