Ultra-High T g Thermoset Fibers Obtained by Electrospinning of Functional Polynorbornenes.

Autor: Commarieu B; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Compaoré M; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., de Boëver R; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Imbeault R; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Leprince M; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Martin B; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Perard B; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Qiu W; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada., Claverie JP; Quebec Center for Functional Materials, Department of Chemistry, Université de Sherbrooke, 2500 Blvd de l'Université, Sherbrooke, QC J1K2R1, Canada.
Jazyk: angličtina
Zdroj: Nanomaterials (Basel, Switzerland) [Nanomaterials (Basel)] 2022 Mar 15; Vol. 12 (6). Date of Electronic Publication: 2022 Mar 15.
DOI: 10.3390/nano12060967
Abstrakt: Insertion polynorbornenes (PBNEs) are rigid-rod polymers that have very high glass transition temperatures (T g ). In this study, two functional PNBEs were electrospun in the presence of a variety of cross-linkers, resulting in fibers with T g s greater than 300 °C. The fibers are long (several mm), rigid, and with diameters that can be tuned in the range 300 nm-10 μm. The electrospinning process can be used to encapsulate dyes or graphene dots. Due to the high cross-linking density of the fiber, dye leaching is prevented. In contrast with other rigid-rod polymers, electrospinning of PNBE is facile and can be performed at injection rates as high as 1 mL/min.
Databáze: MEDLINE
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