초록 |
Poly(methyl methacrylate) have been synthesized by living anionic ring-opening polymerization of 1,1-methylsiletance at -48oC in THF-hexane solvent system and addition of methyl methacrylate monomer. The characterization of diblock copolymer are simultaneously investigated by GPC, DSC, IR, 1H, 13C and 29Si NMR. The microphase separation in diblock copolymer is characterized by small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). The polymer in the solution was found to have difference morphology depending on the volume fraction of the block copolymer. |