| 초록 |
Poly(N-vinylformamide) (PNVF) is one of the commercially available precursor polymers for poly(vinylamine), which can bind heavy metal ions in aqueous solution due to its high density of amine groups. However, there have been few reports about synthesis of PNVF and its copolymer via controlled radical polymerization. We synthesized poly(p-acetoxystyrene–b-N-vinylformamide) (poly(pAcOS-b-NVF)) through Reversible Addition Fragmentation Chain-Transfer (RAFT) polymerization. The diblock copolymer was prepared via synthesis of Poly(p-acetoxystyrene) Macro-RAFT agent, then further polymerization with NVF. In order to effective control of the polymerization with two different types of monomers, we use “switchable” RAFT agent in which reactivity of the thiocarbonyl group can be controlled by protonation/deprotonation of Z group. This agent gives a good control over the polymerization, and resulting in poly(pAcOS-b-NVF) with narrow polydispersity index (PDI) value. |
