| 세션명 | 고분자구조 및 물성(III) |
|---|---|
| 발표장 | 포스터장 |
| 논문코드 | 3PS-91 |
| 발표일 | 2019-10-11 |
| 발표시간 | 16:00-17:30 (게시시간: 13:50-17:30) |
| 논문제목 | pH-Responsive Poly(acrylic acid) Modified Mesoporous Silica Nanoparticles for Releasing Guest Molecules |
| 발표자 | 공정원 |
| 발표자 소속 | 부산대학교 |
| 저자 | 공정원, 하창식†, 박성수 |
| 소속 | 부산대학교 |
| 논문초록 | We synthesized poly(acrylic acid) modified mesoporous silica nanoparticles(MSNs) to prepare effective pH-responsive nanocarrier. (3-Trimethoxysilyl)propyl methacrylate(TMSPM) functionalized surface was prepared by using post-grafting method, then free-radical polymerization of acrylic acid(AA) was proceeded using potassium persulfate as an initiator. The structure and morphology of the modified nanoparticles were characterized by X-ray diffraction, FT-IR, DLS, SEM, TEM, and N2 adsorption-desorption analysis. The prepared particles have well-ordered mesoporous structure and large pore size and pore volume that is proper as a carrier for guest particles. We studied on the controlled releasing of Rhodamine B(RhB) as a guest molecule. The guest molecules-incorporated MSNs showed different releasing rate of RhB under various pH conditions(pH 7.4, 5.6, 4.0). It demonstrated that our current materials have possibilities to be utilized in catalytic applications, drug delivery and so on. |
THE POLYMER SOCIETY OF KOREA