| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Mesoporous Silica and Organosilica Using Pentablock Copolymer Templates via EISA Process |
| 초록 |
The preparation of mesoporous silica and organosilica materials was carried out in the presence of pentablock copolymer templates using the evaporation-induce self assembly (EISA) method. PLGA-PEO-PPO-PEO-PEO-PLGA Pentablock copolymers were prepared by attaching PLGA block to the both ends of a few kinds of Pluronic PEO-PPO-PEO triblock copolymers. The weight fraction and total molecular weight were adjusted by Pluronic macroinitiators and PLGA block added. The detailed nanostructure of mesoporous samples was characterized through small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and nitrogen adsorption analysis. We observed that the pore size of the mesoporous material varies depending on the weight fraction of PLGA in the pentablock polymer and the amount of silica precursors. We also observed that the tendency of the wall thickness varies with the silica source. |
| 저자 |
김태연, 조은범
|
| 소속 |
서울과학기술대 |
| 키워드 |
mesoporous silica; organosilica; EISA process; large mesopore
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| E-Mail |
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