| 초록 |
Nanoporous polymer with precisely controlled pore size can be produced from a block copolymer precursor by selectively removing the sacrificial block. Such nanoporous polymers are expected to be useful in applications including catalysis, separation, and filtration. Particularly for filtration membrane applications, nanoporous polymers should possess high chemical stability and good mechanical properties that can withstand chemical treatments and hydraulic pressure. To this end, we combined a high-performance condensation polymer as poly(ether sulfone) (PES) and a sacrificial polymer as polylactide (PLA) to form a new block copolymer that can be converted into the nanoporous polymer containing well-defined pores in the condensation polymer framework. I will discuss synthesis of the target block copolymer PLA-b-PES-b-PLA by combining condensation polymerization and ring opening transesterification polymerization, and formation of nanoporous PES from the block copolymer precursor. |
