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Molecular Rotors with Aggregation-Induced Emission (AIE) as Fluorescent Probes for the Control of Polyurethane Synthesis
| Content Provider | MDPI |
|---|---|
| Author | Minei, Pierpaolo Iasilli, Giuseppe Ruggeri, Giacomo Mattoli, Virgilio Pucci, Andrea |
| Copyright Year | 2020 |
| Description | In this work, the use of fluorescent molecular rotors such as 9-(2,2-dicyanovinyl)julolidine (DCVJ) and 2,3-bis(4-(phenyl(4-(1,2,2-triphenylvinyl) phenyl)amino)phenyl)fumaronitrile (TPETPAFN)) was proposed for the real-time monitoring of polyurethane (PU) formation in a solution of dimethylacetamide starting with 4,4’-methylenediphenyl diisocyanate (MDI) and different polyethylene glycols (PEG400 and PEG600) as diols. Notably, relative viscosity variations were compared with fluorescence changes, recorded as a function of the polymerization progress. The agreement between these two parameters suggested the innovative use of a low-cost fluorescence detection system based on a LED/photodiode assembly directly mountable on the reaction apparatus. The general validity of the proposed experiments enabled the monitoring of polyurethane polymerization and suggested its effective applications to a variety of industrial polymers, showing viscosity enhancement during polymerization. |
| Starting Page | 3 |
| e-ISSN | 22279040 |
| DOI | 10.3390/chemosensors9010003 |
| Journal | Chemosensors |
| Issue Number | 1 |
| Volume Number | 9 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-12-23 |
| Access Restriction | Open |
| Subject Keyword | Chemosensors Polymer Science Aggregation-induced Emission Fluorescent Molecular Rotors Polyurethane Polymerization Photodiode |
| Content Type | Text |
| Resource Type | Article |
