Next Article in Journal
Potentiometric Carboxylate Sensors Based on Carbazole-Derived Acyclic and Macrocyclic Ionophores
Next Article in Special Issue
Bicyclic 1,3a,6a-Triazapentalene Chromophores: Synthesis, Spectroscopy and Their Use as Fluorescent Sensors and Probes
Previous Article in Journal
Detection of Mackerel Fish Spoilage with a Gas Sensor Based on One Single SnO2 Nanowire
Previous Article in Special Issue
Perylene Imide-Based Optical Chemosensors for Vapor Detection
 
 
Article

Molecular Rotors with Aggregation-Induced Emission (AIE) as Fluorescent Probes for the Control of Polyurethane Synthesis

1
Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
2
Center for Micro-BioRobotics @SSSA Istituto Italiano di Tecnologia Viale Rinaldo Piaggio 34, 56025 Pontedera, Italy
*
Author to whom correspondence should be addressed.
Chemosensors 2021, 9(1), 3; https://doi.org/10.3390/chemosensors9010003
Received: 29 November 2020 / Revised: 19 December 2020 / Accepted: 22 December 2020 / Published: 23 December 2020
(This article belongs to the Special Issue Organic Fluorescent Materials as Chemical Sensors)
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. View Full-Text
Keywords: aggregation-induced emission; fluorescent molecular rotors; polyurethane polymerization; photodiode aggregation-induced emission; fluorescent molecular rotors; polyurethane polymerization; photodiode
Show Figures

Graphical abstract

MDPI and ACS Style

Minei, P.; Iasilli, G.; Ruggeri, G.; Mattoli, V.; Pucci, A. Molecular Rotors with Aggregation-Induced Emission (AIE) as Fluorescent Probes for the Control of Polyurethane Synthesis. Chemosensors 2021, 9, 3. https://doi.org/10.3390/chemosensors9010003

AMA Style

Minei P, Iasilli G, Ruggeri G, Mattoli V, Pucci A. Molecular Rotors with Aggregation-Induced Emission (AIE) as Fluorescent Probes for the Control of Polyurethane Synthesis. Chemosensors. 2021; 9(1):3. https://doi.org/10.3390/chemosensors9010003

Chicago/Turabian Style

Minei, Pierpaolo, Giuseppe Iasilli, Giacomo Ruggeri, Virgilio Mattoli, and Andrea Pucci. 2021. "Molecular Rotors with Aggregation-Induced Emission (AIE) as Fluorescent Probes for the Control of Polyurethane Synthesis" Chemosensors 9, no. 1: 3. https://doi.org/10.3390/chemosensors9010003

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop