Abstract
From the temperature dependent steady-state and time-resolved fluorescence studies of coumarin 153 (C153) in dendritic polyethylene (DPE)–poly(oligo(ethylene gylcol) methacrylate) (POEGMA) unimolecular micelles, the polarity and microviscosity of the microenvironments of DPE–POEGMA were obtained. The analysis of the steady-state emission suggested that C153 sensed a more polar microenvironment in dendrimer polyethylene (dPE)–POEGMA than that in hyperbranched polyethylene (hPE)–POEGMA. It is found that the microviscosity around C153 in DPE–POEGMA micelle could be predicted from the measured reorientational time, which was observed to decrease with increasing temperature, and that local friction experienced by C153 in dPE–POEGMA decreases faster than in hPE–POEGMA with the increase of temperature, although both have similar local friction ranges.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
