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Control Over the Morphology of Electrospun Microfibrous Mats of a Polymer of Intrinsic Microporosity.

ABSTRACT: This study reports for the first time the preparation of an electrospun microfibrous mat of PIM-EA-TB. The electrospinning was carried out using a chloroform/n-Propyl-lactate (n-PL) binary solvent system with different chloroform/nPL ratios, in order to control the morphology of the microfibres. With pure chloroform, porous and dumbbell shape fibres were obtained whereas, with the addition on n-PL, circular and thinner fibres have been produced due to the higher boiling point and the higher conductivity of n-PL. The electrospinning process conditions were investigated to evaluate their impact on the fibres' morphology. These microfibrous mats presented potential to be used as breathable/waterproof materials, with a pore diameter of 11 μm, an air resistance of 25.10-7 m-1 and water breakthrough pressure of 50 mBar.

SUBMITTER: Lasseuguette E

PROVIDER: S-EPMC8227142 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Control Over the Morphology of Electrospun Microfibrous Mats of a Polymer of Intrinsic Microporosity.

Lasseuguette Elsa E Malpass-Evans Richard R Tobin John M JM McKeown Neil B NB Ferrari Maria-Chiara MC

Membranes 20210531 6

This study reports for the first time the preparation of an electrospun microfibrous mat of PIM-EA-TB. The electrospinning was carried out using a chloroform/<i>n</i>-Propyl-lactate (n-PL) binary solvent system with different chloroform/nPL ratios, in order to control the morphology of the microfibres. With pure chloroform, porous and dumbbell shape fibres were obtained whereas, with the addition on n-PL, circular and thinner fibres have been produced due to the higher boiling point and the high ...[more]

PMID: 34073010

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