摘要 : The reversible addition fragmentation chain transfer (RAFT) bulk polymerization of isobutyl methacrylate (i-BMA) has been studied using 2-cyanoprop-2-yl dithionaphthalate (CPDN) as RAFT agent in the presence of 2,T-azobisisobutyro... 展开 The reversible addition fragmentation chain transfer (RAFT) bulk polymerization of isobutyl methacrylate (i-BMA) has been studied using 2-cyanoprop-2-yl dithionaphthalate (CPDN) as RAFT agent in the presence of 2,T-azobisisobutyronitrile (AIBN). The results of polymerizations of i-BMA show that i-BMA can polymerize in a controlled way by RAFT polymerization using CPDN as RAFT agent; i.e., the polymerization rate is first order with respect to monomer concentration, molecular weight increases linearly with monomer conversion, and polydispersities are relatively low (PDI < 1.2). The structure of the polymer was characterized by H-1-NMR. A chain-extension experiment of the resulting polymer was successfully carried out. The influences of [i-13MA](0)/[CPDN](0)/[AIBN](0) molar ratio and reaction temperature were investigated. 收起