학회 | 한국화학공학회 |
학술대회 | 2012년 가을 (10/24 ~ 10/26, 부산 BEXCO) |
권호 | 18권 2호, p.1495 |
발표분야 | 고분자 |
제목 | Smart AAO membranes with dual responsiveness |
초록 | Stimulus-responsive membranes have gained a strong attraction due to their potential use for through the control of pore sizes of the membranes. However, the release rate depends on only a single stimulus (for instance, temperature, PH). However, when the pore sizes in top and bottom of the membranes are independently adjusted by different stimuli, the membrane could play as a specific reactor (or container) with two independent gates. Here, we fabricate the dual stimuli-responsive anodized aluminum oxide (AAO) membranes by modifications of both pores with different surface functionalities. For this purpose, the wall of the pores in the top regions of the membranes are grafted with poly(N-isopropylacrylamide) chains, which allows us to actuate the pore size by temperature. On the other hand, the wall of the pores in the bottom regions are grafted with poly(acrylic acid) chains; thus the pore size is actuated by PH. |
저자 | 이봄이, 전금혜, 현 승, 김진곤 |
소속 | POSTECH |
키워드 | stimuli responsive polymer; anodized aluminum oxide |
원문파일 | 초록 보기 |