Surfactant-free miniemulsion approach for low band gap rod-coil block copolymer water-processable nanoparticle fabrication: Film preparation and morphological characterization
| Autor: | Stefania Zappia, Anna M. Ferretti, Francesca Villafiorita-Monteleone, Umberto Giovanella, Silvia Destri, Guido Scavia |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Fabrication Materials science Polymers and Plastics Band gap miniemulsion Organic Chemistry Nanoparticle 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Miniemulsion Pulmonary surfactant chemistry Chemical engineering EDX Materials Chemistry Copolymer water-processable nanoparticles 0210 nano-technology |
| Zdroj: | Polymer (Guildford) 174 (2019): 61–69. doi:10.1016/j.polymer.2019.04.055 info:cnr-pdr/source/autori:Ferretti A.M.; Zappia S.; Scavia G.; Giovanella U.; Villafiorita-Monteleone F.; Destri S./titolo:Surfactant-free miniemulsion approach for low band gap rod-coil block copolymer water-processable nanoparticle fabrication: Film preparation and morphological characterization/doi:10.1016%2Fj.polymer.2019.04.055/rivista:Polymer (Guildford)/anno:2019/pagina_da:61/pagina_a:69/intervallo_pagine:61–69/volume:174 |
| Popis: | The aqueous processing of hydrophobic conjugated polymers to produce nanoparticles is an emerging technology with wide application in photonic, optoelectronic, biological and medical areas. The insertion of 4VP-based tailored segment in the polymeric backbone prevents the surfactant addition during the aqueous nanoparticle fabrication. Four amphiphilic low band gap rod-coil block copolymers, constituted by a semiconducting rigid block and differing in the coil molecular structure and length, were processed in aqueous medium using the miniemulsion approach without surfactant use. Stable water-processable nanoparticles (WPNPs) suspended in aqueous medium were obtained, and WPNP-based films were deposited. The STEM-EDX analysis revealed the WPNP internal composition. The S-concentration, connected with the rod block location, is higher in the WPNP core, and the C-concentration higher on the WPNP edge when pure 4VP-based coils are present, confirming their surfactant-like role. |
| Databáze: | OpenAIRE |
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