| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Hexagonal Phase Induced by Single-Walled Carbon Nanotubes in a Polymeric System and Their Lyotropic and Thermotropic Phase Behaviors |
| 초록 |
For practical applications of single-walled carbon nanotubes (SWNTs), a simple and easy method to fabricate well-organized SWNT superstructures is required. Amphiphilic molecules such as polymers can provide structural templates for well-organized SWNT superstructures due to their rich phase behavior. Here, we report SWNT induced lyotropic and thermotropic phase behaviors in Pluronic/water system. SAXS measurements of Pluronic/water and Pluronic-SWNT/water dispersions at different concentrations were performed to characterize the difference of phase behavior. In lyotropic phase behavior, clear contrast of phase behavior between polymer/water (iso-BCC-lam) and polymer-SWNT/water (iso-hex-FCC-BCC-lam) was observed, indicating newly induced hexagonal and FCC phase by SWNT. In thermotropic phase behavior, SWNT-induced hexagonal phase were observed from 20~40 wt% concentration. Their hexagonal phases were maintained even the phase was changed by temperature increase. |
| 저자 |
장형식1, 김태환2, 도창우1, 이민재1, 임성환1, 하재민1, 최성민1
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| 소속 |
1한국과학기술원, 2한국원자력(연) |
| 키워드 |
carbon nanotube; self-assembly; polymer; saxs
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| E-Mail |
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