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Thermally Stable Au Nanoparticles via Photo-crosslinkable Polymeric Stabilizers

등록일
2009년 8월 18일 18시 55분 16초
접수번호
1361
발표코드
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발표시간
금 15시 : 25분
발표형식
심포지엄
발표분야
고분자화학 - Novel Functional Nanostructures: ㅡ Materials, Structures, Properties and Applications Ⅱ
저자 및
공동저자
방준하
고려대학교 화공생명공학과, Korea
Polymer nanocomposites consisting of polymers and inorganic nanoparticles (NPs) have attracted many interest due to their applications such as solar cell, sensors, catalysts and ferroelectric devices. To integrate NPs into polymer matrix in the controlled manner, thiol-terminated stabilizers have been used to tune the surface property of NPs such as Au, Pt, CdSe, etc. However, a practical use of such particles in the nanocomposites is very limited by thermal instability even at ~90 oC, leading to the agglomeration of NPs. To impart the thermal stability of NPs, we modified Au NPs surface using UV-crosslinkable polymeric stabilizers. After UV-crosslinking, it was found that the Au NPs exhibit the excellent stability at high temperature (~180 oC) in both solution and thin-film states. Furthermore, we demonstrate that thermally stable Au NPs can be used as compatibilizers in PS/PMMA blends.

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