Block copolymer photonic mesogels exhibiting dual volume phase transitions
- Title
- Block copolymer photonic mesogels exhibiting dual volume phase transitions
- Author
- 강영종
- Keywords
- Photonic crystal; Mesogel; Volume phase transitions
- Issue Date
- 2013-02
- Publisher
- Springer Science + Business Media
- Citation
- Polymer bulletin, Feb 2013, 70(2), P.593-601
- Abstract
- Photonic mesogel films exhibiting brilliant photonic colors wereprepared by selective swelling of polystyrene-b-quaternized poly(2-vinyl pyridine) (PS-b-QP2VP) block copolymers, and their volume phase transition behaviors were investigated in various solvent mixtures. The swollen PS-b-QP2VP lamellae segregate into mesophased gels where the highly swollen QP2VP gel layers are alternating with the glassy PS layers and exhibit strong responsive photonic colors in visible regime. Utilizing the changes of photonic stop bands, the swelling behaviors of the photonic mesogels were able to be monitored with sub-nanometer accuracy. Unusual dual volume phase transitions were observed at certain conditions where hydrogen bonding became significantly strong.
- URI
- https://link.springer.com/article/10.1007/s00289-012-0877-9http://hdl.handle.net/20.500.11754/44828
- ISSN
- 0170-0839
- DOI
- 10.1007/s00289-012-0877-9
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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