Abstract
Pyridyl-imine copper complex, CuII(paenMe2)Br2, was used to mediate the normal and AGET (Activators generated by electron transfer) ATRP of methyl methacrylate. The different initiators, ratios of ligand and the lengths of copper wires were tuned. The polymeric products showed a low polydispersity (Mw/Mn = 1.14 ~ 1.18) and the molecular weight matched the theoretical values. Besides, the pyrene-labeled polymers with structure of linear, star and network were synthesized by AGET ATRP. Observing the fluorescent intensity changes of polymers by PL, we found the fluorescent intensity of star polymer decreased at the beginning and increased afterwards. For linear and network polymers, the fluorescent intensity increased with conversion increasing. The block copolymers of pyrene-PMMA-b-PSt, naphthalene-PMMA-b-PSt, pyrene-PSt-b-PMMA and naphthalene-PSt-b-PMMA were synthesized to observe their self-assembly effect. However, using SAXS (Small angle x-ray scattering) and TEM (Transmission electron microscopy) to observe the structure of block copolymers, the ordered arrangement and microphase separation were not found.