| 초록 |
Thermo-responsive polymers show difference solubility or miscibility in aqueous solutions as temperature. Using these polymer, microcapsule can control as changing the size. These microcapsules are used microreactor, release control drug-delivery or sensor, etc. But hydrogel matrix polymers are not solute in aqueous phase so micro-emulsion design will be oil-in-water-in-oil. In this case, liquid exchange step after polymerization, oil to water, is negative influence to capsule condition and hydrophilic materials encapsulation is impossible. In this study, we use Poly(N,N-diethylacrylamide) with benzophenone (PDEAM-BP) as hydrogel materials. This polymer has good solubility to aqueous so it can be remove washing step and enable encapsulation. Fabricated micro-capsules shows sharp cut-off value control as temperature compared other hydrogel microcapsule. We expect fabricated microcapsule applied as microreactor or catalyst system to control materials transfer as temperature. |
