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PS/PMMA‐CdSe/ZnS Quantum Dots Hybrid Nanofibers for VOCs Sensors
Author(s) -
De San Luis Alicia,
Aguirreurreta Ziortza,
Pardo Leticia M.,
PerezMarquez Ana,
Maudes Jon,
Murillo Nieves,
Paulis María,
Leiza Jose Ramon
Publication year - 2018
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.201800038
Subject(s) - nanofiber , quantum dot , electrospinning , polyvinyl alcohol , emulsion polymerization , acetone , chemistry , chemical engineering , polymerization , luminescence , nanotechnology , emulsion , polymer , materials science , optoelectronics , organic chemistry , engineering
Abstract Hybrid nanofibers containing CdSe/ZnS quantum dots have been produced by electrospinning of hybrid latexes to characterize the electro‐optical behavior of this novel luminescent sensing material. The latexes are synthesized by seeded semi‐batch emulsion polymerization yielding cross‐linked core‐shell PS/QDs/PMMA particles with efficiently encapsulated quantum dots guaranteeing a good optical stability. Addition of polyvinyl alcohol (PVA) or polyethylene oxide (PEO) to the latexes is necessary to produce polymeric dispersions suitable for electrospinning manufacture of the nanometric fibers. The optimized polymeric dispersions are successfully electrospun obtaining fluorescent nanofibers in both cases. The hybrid nanofibers are sensitive to selected solvents (acetone, methanol and THF) and present positive response making them good candidates for the production of VOC sensors.