Fluorescence of Syndiotactic Polystyrene/Trimethylbenzene Clathrate and Intercalate Co-Crystals
Del, MADG; Maurizio, C; Vincenzo, V; Vittorio, P; Marco, S; Gaetano, G
| HERO ID | 857663 |
|---|---|
| In Press | No |
| Year | 2007 |
| Title | Fluorescence of Syndiotactic Polystyrene/Trimethylbenzene Clathrate and Intercalate Co-Crystals |
| Authors | Del, MADG; Maurizio, C; Vincenzo, V; Vittorio, P; Marco, S; Gaetano, G |
| Journal | Chemistry of Materials |
| Volume | 19 |
| Page Numbers | 6041 |
| Abstract | The self-assembling of fluorescent guest molecules, with the nanoporous host crystalline phase of syndiotactic polystyrene (s-PS) films, reduces chromophore diffusivity. Moreover, the chromophore fluorescence can be largely perturbed by formation of suitable polymer co-crystals. In particular, by excitation at the absorbance maximum (265 nm), s-PS/1,3,5-trimethylbenzene clathrate co-crystals present a broad fluorescence band nearly centered at 300 nm, while the corresponding intercalate co-crystals present a red-shifted fluorescence band with maxima at 330, 340, and 355 nm. This red shifted fluorescence is possibly due to absorption of the primary fluorescence by ground state complexes, formed in the intercalate co-crystal. The enhanced and red-shifted fluorescence could be relevant for optical and optoelectronic applications. [ABSTRACT FROM AUTHOR] Copyright of Chemistry of Materials is the property of American Chemical Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | fluorescence; polystyrene; CLATHRATE compounds; crystals |
| Is Qa | No |