Study on incomplete fluorescence quenching of cationic poly(p‐phenylenevinylene)s with different contents of cis‐ and trans‐vinylic linkages |
| |
| Authors: | Guang‐Wei Zhang Xiao‐Mei Lu Qu‐Li Fan Yan‐Qin Huang Wei Huang |
| |
| Affiliation: | 1. Lab of Advanced Materials, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China;2. Jiangsu Key Lab of Organic Electronics & Information Displays, Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210046, People's Republic of China;3. Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications (NUPT), 9 Wenyuan Road, Nanjing 210046, People's Republic of China |
| |
| Abstract: | ![]()
Fluorescence properties of a series of cationic poly(p‐phenylenevinylene) (PPV) derivatives with different contents of cis‐ and trans‐vinylic linkages quenched by Fe(CN) were intensively investigated. PPVs with cis‐/trans‐vinylic linkages display downward Stern‐Volmer curves indicating incomplete quenching. The fluorescence quenching mechanism and the effect of many factors possible on the incomplete quenching has been examined, and the difference of the quenching behavior of two isomers was investigated, which further confirmed that the presence of cis‐vinylic linkages would most probably cause inaccessible fluorophores and thus the incomplete quenching. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010 |
| |
| Keywords: | conjugated polymers fluorescence polyelectrolytes |
|
|
