ABSTRACT
The fluorescence intensity and the oxygen queching sensity (OQS) of the polymers are due to the side-chain construction. The OQS of the polymer with –COO– groups was as high as 59% at the monomer emission (ME) and 54% at the excimer emission (EE). With the decreasing of the concentration, the changes of fluorescence intensity and OQS were both increasing at ME and decreasing at EE. Fluorescence emission spectra were recorded by using a fiber optic spectrometer, model F-2500 from Hitachi, Ltd. The fluorescence emission spectra of the solution were recorded before deaeration and after deaeration. The fluorescence monomer emission peaks of 1-decenyl–4–(1-pyrenyl) butanoate and Polymer-A are shifted to the longer wavelength side by about 3 nm and the fluorescence intensity of the excimer emission (EE) decreases prominently compared to that of pyrene and pyrene derivatives at the same concentration.
