콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Free-standing polymer nanoactuators, nanoshutters, and nanofilters
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-02-24
- 저자명 Md. Shahinul Islam, Won San Choi*, Ha-Jin Lee, Young Boo Lee and Il Cheol Jeon
- 학술지명 J. Mater. Chem.
- 발행처명 Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 5
- 논문 다운로드 링크(외부) https://doi.org/10.1039/C2JM16179F
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Our study demonstrates a facile approach for the synthesis of metal NP-embedded freestanding polyelectrolyte complexes (PECs) without sacrificial templates, which can be used as nanoactuators, nanoshutters, and nanofilters. The metal NP-PECs were prepared by mixing metal precursor-preadsorbed cation and anion PEs, using a nonstoichiometric ratio, followed by a controlled heat treatment. The metal NP-PECs showed reversible structural changes such as shrinking or swelling when they were exposed to various pH conditions. During the changes, they were also able to reversibly control the interparticle distance of the metal NPs embedded in the PECs, which has allowed the easy tuning of their catalytic and optical properties. By the reversible control of structural changes, the PECs can also be used as nanoshutters to reversibly control the flow of nanomaterials in the channels or pores. Furthermore, metal NP-embedded PECs, Au/Ag-PECs, were demonstrated to be useful as nanofilters for removing or transforming unwanted materials.
