| 초록 |
Nucleobase-containing polymers have received great attention for their complementary multiple hydrogen bonding between nucleobases. In this study, we successfully synthesized adenine-containing block copolymers, poly(9-(4-vinylbenzyl)adenine)-block-polystyrene (PVBA-b-PS), using RAFT polymerization in polar solvents, and characterized them by SEC, and 1H NMR. The phase behavior of PVBA-b-PS with various volume fractions of PS block (fPS) was investigated via SAXS and TEM. With increasing fPS from 0.1 to 0.8, BCC spheres of PVBA, HEX cylinders of PVBA, lamellae, and HEX cylinders of PVBA were observed. Interestingly, PVBA-b-PS with fPS = 0.75 showed asymmetric lamellar microdomains. We also prepared thin film of PVBA-b-PS on a substrate as a template for spatial arrangement of gold nanoparticles (AuNPs). AuNPs were selectively sequestered into PVBA microdomains through the complementary hydrogen bonding between thymine and adenine units. |
