期刊
MACROMOLECULES
卷 48, 期 1, 页码 64-71出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma502160w
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资金
- National Basic Research Program of China (973 Program) [2013CB834701]
- National Science Foundation of China [21490570, 21490574]
- Research Grants Council of Hong Kong [604913, 602212]
- University Grants Committee of Hong Kong [AoE/P-03/08]
- Guangdong Innovative Research Team Program [201101C0105067115]
Organic luminescent materials carrying no phenyl rings have attracted much interest from researchers due to their excellent biocompatibility and good biodegradability, which make them available for potential applications in a variety of biomedical areas, such as fluorescent bioprobe, drug delivery and gene carrier, and provide a new insight into the photophysical process of light emission. In this work, we studied the optical properties of poly[(maleic anhydride)-alt-(vinyl acetate)] (PMV), a pure oxygenic nonconjugated polymer and proved that the origin of its emission was associated with the clustering of the locked carbonyl groups. PMV exhibits solvatochromism: after interaction with electron-rich solvents, its absorption and emission shift to the longer wavelength region due to the formation of polymer/solvent complexes. This enables fine-tuning of its optical property by varying the solvent without the need of changing the chromophore.
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