콘텐츠 본문
논문 해외 국제전문학술지(SCI급) UV-triggered Encapsulation and Release From Polyelectrolyte Microcapsules Decorated with Photoacid Generators
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2010-03-30
- 저자명 Hye Young Koo, Ha-Jin Lee, Jun Kyung Kim, Won San Choi*
- 학술지명 J. Mater. Chem.
- 발행처명 Royal Society of Chemistry
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
- 논문 다운로드 링크(외부) https://doi.org/10.1039/B924282A
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
In the present study, a versatile layer-by-layer technique using polyelectrolyte multilayers (PEMs) was used to prepare microcapsules with walls containing photoacid generators (PAGs), which made them optically addressable. By exposure to UV light with a wavelength of 254 nm, the PAGs within the capsule walls were activated, which caused the release of protons from the capsules. This release of protons caused a decrease in the pH of the capsule solution, which then triggered a swelling of the microcapsules. The resulting microcapsules could be opened and closed via alternate repetition of exposure to UV light and washing with neutral water. Prolonged exposure led to a breakage of the capsules, which promoted a rapid release of the entrapped substances.
