Abstract
Well-defined 1,4-diketo-3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole (DTDPP) labeled polycaprolactones (PCL) with different chain lengths were synthesized and characterized. The effect of polymer chain lengths on the optical properties of DTDPP in solid states was studied by UV-Vis absorption spectroscopy as well as steady-state and dynamic fluorescence spectroscopies. Our results indicate that when the PCL side chain is extended to a certain length, the intermolecular aggregation of DTDPP units can be reduced significantly due to segregation effect of PCL. This approach offers a new facile strategy to address the common problem of aggregation-caused quenching existing in organic fluorophores. These highly fluorescent biodegradable PCL polymers may find broad biomedical applications such as fluorescence-based bioimaging and tissue engineering. © 2015 Wiley Periodicals, Inc.
| Original language | English |
|---|---|
| Pages (from-to) | 1032-1042 |
| Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
| Volume | 53 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 15 Apr 2015 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- aggregation
- biodegradable
- diketopyrrolopyrrole
- fluorescence
- polycaprolactone
- ring-opening polymerization