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US 11,932,970 B2Granted
Electrospun nanofibers
OwnerChristopher M. Hoffman, Jr., Matthew P. Yeager +4inventors
InventorsChristopher M. Hoffman, Jr., Matthew P. Yeager, Morgana M. Trexler, Zhiyong Xia, Douglas A. Smith, Marcia W. Patchan
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Abstract
A nanofiber comprising a polyamide including at least one substituted phenyl group is provided. The nanofiber includes an average diameter from about 50 to about 1000 nm. A fibrous mat including a plurality of the nanofibers is also provided. A composite including a plurality of the nanofibers and a continuous matrix resin is also provided. A method of forming the nanofibers is also provided.
Claims13
A nanofiber, comprising:
- a polyamide including at least one substituted phenyl group;
- wherein the nanofiber has an average diameter from 50 to 1000 nm;
- and wherein the polyamide comprises a reaction of at least a Monomer A and a Monomer B that defines a first repeating unit, wherein the polyamide comprises a plurality of first repeating units, and wherein the first repeating unit comprises a structure according to Formula (1):
- wherein R1, R2, R3, and R4 are each independently selected from H, a halogen, a saturated aliphatic radical having from 1 to 30 carbon atoms, an unsaturated aliphatic radical having from 1 to 30 carbon atoms, a nitro group, a carboxylic acid radical, or an ether radical;
- and wherein R1 and R2 are each a chlorine atom, or R3 and R4 are each a chlorine atom.
2 more elements
A nanofiber, comprising:
- a polyamide including at least one substituted phenyl group;
- wherein the nanofiber has an average diameter from 50 to 1000 nm;
- wherein the polyamide comprises a reaction product of (i) Monomer A, (ii) Monomer B, and (iii) Monomer C;
- wherein Monomer A is selected from one or more compounds according to Formula (2), Monomer B is selected from one or more compounds according to Formula (3), and Monomer C is selected from one or more compounds according to Formula (4):
- wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, and R12 are each independently selected from H, a halogen, a saturated aliphatic radical having from 1 to 30 carbon atoms, an unsaturated aliphatic radical having from 1 to 30 carbon atoms, a nitro group, a carboxylic acid radical, or an ether radical, wherein at least one of R9, R10, R11, and R12 is a halogen, wherein R1 and R2 are each a chlorine atom or R3 and R4 are each a chlorine atom, and wherein Monomer A and Monomer B are different;
- wherein X1 and X2 are each independently selected from a halogen;
- wherein coefficient L is a relative number of moles for Monomer A with respect to a total number of moles for Monomers A through C, coefficient M is a relative number of moles of Monomer B with respect to the total number of moles for Monomers A through C, and coefficient N is a relative number of moles of Monomer C with respect to the total number of moles for Monomers A through C;
- and
- wherein L+N=M, and L+M+N=1.
6 more elements
Dependencies are inferred from the claim text.