| 초록 |
Porous polymers can be divided into micro- (＜ 2 nm), meso- (2 – 50 nm) and macroporous polymers (＞ 50 nm) according to their pore size. Hierarchically porous polymers (HPPs) have more than two categories of pores at different length scales and can couple high surface area with accelerated adsorption rate by accelerating diffusion of the substance through the larger porous space. We have previously reported synthesis and characterization of HPPs containing micropores within the three-dimensionally continuous mesoporous framework. A polymerization mixture containing polylactide macro-chain transfer agent, vinylbenzyl chloride, styrene, and divinylbenzene was polymerized to form a crosslinked precursor via reversible addition-fragmentation chain transfer polymerization, which was converted into HPP by hypercrosslinking. Here we will discuss nanostructure and pore characteristics of HPPs derived from different composition of the polymerization mixture in detail. |
