Optimization of the fabrication of amidoxime modified PIM-1 electrospun fibres for use as breathable and reactive materials

Elsa Lasseuguette; Richard Malpass-Evans; Sara Caslini; Neil B McKeown; Maria-Chiara Ferrari

doi:10.1016/j.polymer.2020.123205

Optimization of the fabrication of amidoxime modified PIM-1 electrospun fibres for use as breathable and reactive materials

Elsa Lasseuguette, Richard Malpass-Evans, Sara Caslini, Neil B McKeown, Maria-Chiara Ferrari

Research output: Contribution to journal › Article › peer-review

Abstract

This study reports the preparation of waterproof/breathable films based on amidoxime functionalized PIM-1, which were processed into fibrous membrane using the electrospinning process with a green solvent, i.e. dimethyl sulfoxide. The influence of the feed solution (polymer concentration, solvent nature, presence of salt) and the electrospinning process conditions (flow rate, distance between the tip and the collector and voltage) has been investigated in order to obtain bead-free, thin fibres with regular structure and low porosity. The addition of salt allowed the production of nanofibres at low polymer concentration, resulting in the fabrication of fibrous mats with 1.5 micron diameter fibres and porosity below 10 micron. These fibre mats possess a hydrophobic character with a contact angle superior to 90°. Moreover, they are breathable, but not permeable to liquid water, which is essential for use within protective gear (i.e. gas masks or protective clothing).

Original language	English
Article number	123205
Number of pages	32
Journal	Polymer
Volume	213
Early online date	6 Nov 2020
DOIs	https://doi.org/10.1016/j.polymer.2020.123205
Publication status	Published - 20 Jan 2021

Keywords

Electrospinning
AO-PIM-1
Green solvent

Access to Document

10.1016/j.polymer.2020.123205

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Polymer_Review_Final
Accepted author manuscript, 2.44 MB
Licence: CC BY-NC-ND
Embargo ends: 6/11/21

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title = "Optimization of the fabrication of amidoxime modified PIM-1 electrospun fibres for use as breathable and reactive materials",

abstract = "This study reports the preparation of waterproof/breathable films based on amidoxime functionalized PIM-1, which were processed into fibrous membrane using the electrospinning process with a green solvent, i.e. dimethyl sulfoxide. The influence of the feed solution (polymer concentration, solvent nature, presence of salt) and the electrospinning process conditions (flow rate, distance between the tip and the collector and voltage) has been investigated in order to obtain bead-free, thin fibres with regular structure and low porosity. The addition of salt allowed the production of nanofibres at low polymer concentration, resulting in the fabrication of fibrous mats with 1.5 micron diameter fibres and porosity below 10 micron. These fibre mats possess a hydrophobic character with a contact angle superior to 90°. Moreover, they are breathable, but not permeable to liquid water, which is essential for use within protective gear (i.e. gas masks or protective clothing).",

keywords = "Electrospinning, AO-PIM-1, Green solvent",

author = "Elsa Lasseuguette and Richard Malpass-Evans and Sara Caslini and McKeown, {Neil B} and Maria-Chiara Ferrari",

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AU - Lasseuguette, Elsa

AU - Malpass-Evans, Richard

AU - Caslini, Sara

AU - McKeown, Neil B

AU - Ferrari, Maria-Chiara

PY - 2021/1/20

Y1 - 2021/1/20

N2 - This study reports the preparation of waterproof/breathable films based on amidoxime functionalized PIM-1, which were processed into fibrous membrane using the electrospinning process with a green solvent, i.e. dimethyl sulfoxide. The influence of the feed solution (polymer concentration, solvent nature, presence of salt) and the electrospinning process conditions (flow rate, distance between the tip and the collector and voltage) has been investigated in order to obtain bead-free, thin fibres with regular structure and low porosity. The addition of salt allowed the production of nanofibres at low polymer concentration, resulting in the fabrication of fibrous mats with 1.5 micron diameter fibres and porosity below 10 micron. These fibre mats possess a hydrophobic character with a contact angle superior to 90°. Moreover, they are breathable, but not permeable to liquid water, which is essential for use within protective gear (i.e. gas masks or protective clothing).

AB - This study reports the preparation of waterproof/breathable films based on amidoxime functionalized PIM-1, which were processed into fibrous membrane using the electrospinning process with a green solvent, i.e. dimethyl sulfoxide. The influence of the feed solution (polymer concentration, solvent nature, presence of salt) and the electrospinning process conditions (flow rate, distance between the tip and the collector and voltage) has been investigated in order to obtain bead-free, thin fibres with regular structure and low porosity. The addition of salt allowed the production of nanofibres at low polymer concentration, resulting in the fabrication of fibrous mats with 1.5 micron diameter fibres and porosity below 10 micron. These fibre mats possess a hydrophobic character with a contact angle superior to 90°. Moreover, they are breathable, but not permeable to liquid water, which is essential for use within protective gear (i.e. gas masks or protective clothing).

KW - Electrospinning

KW - AO-PIM-1

KW - Green solvent

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DO - 10.1016/j.polymer.2020.123205

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