# US 10,308,748 B2 · Lignin-containing polymers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,308,748 B2 - Document ID: US10308748B2 - Status: Granted - Kind: B2 - Application number: 15/614,942 - Filed: 2017-06-06 - Published: 2017-11-23 - Granted: 2019-06-04 - Earliest claimed: 2015-02-03 - Assignees: The Florida State University Research Foundation, Inc. - Applicants: Florida State University Research Foundation, Inc. - Inventors: Hoyong Chung - Web page: https://patentgrep.com/patent/US10308748B2 ## CPC - C08F 265/02: on to polymers of acids, salts or anhydrides - C08F 267/10: on to polymers of amides or imides - C08G 81/02: at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds - C08G 81/025: {containing polyether sequences} - C08L 51/003: {grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C08L51/04, C08L51/06 take precedence)} - G02B 1/04: made of organic materials, e.g. plastics (G02B1/08 takes precedence) - C08F 2438/03: Use of a di- or tri-thiocarbonylthio compound, e.g. di- or tri-thioester, di- or tri-thiocarbamate, or a xanthate as chain transfer agent, e.g . Reversible Addition Fragmentation chain Transfer [RAFT] or Macromolecular Design via Interchange of Xanthates [MADIX] - C08G 83/008: {Supramolecular polymers} - C08L 101/16: the macromolecular compounds being biodegradable - C08L 2205/025: containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure - C08L 2205/05: containing polymer components which can react with one another - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract Click reactions may be used to bond polymers to lignin by taking advantage of lignin's terminal hydroxyl and thiol groups via an alkyne-azide click reaction or a thiol-alkene or thiol-alkyne click reaction. By selecting functional polymers, these methods may be used to synthesize lignin-containing polymer materials with an array of different properties, such as self-healing polymers. ## Claims ### Claim 1 A polymer material comprising: a first compound including a first lignin-based core with a first plurality of polymers attached to the first lignin-based core; and a second compound including a second lignin-based core with a second plurality of polymers attached to the second lignin-based core; wherein the first and second plurality of polymers interact and hold the first and second compounds together to form a monolithic product including the first compound and second compound; wherein the monolithic product includes a Diels-Alder adduct that holds the first and second compounds together. ### Claim 2 (depends on 1) The polymer material of claim 1, wherein the monolithic product includes hydrogen bonding that holds the first and second compounds together. ### Claim 3 (depends on 1) The polymer material of claim 1, wherein the first and second plurality of polymers are attached to their respective lignin-based cores via a triazole ring. ### Claim 4 (depends on 1) The polymer material of claim 1, wherein the first and second lignin-based cores have a major dimension of 1-1000 nm. ### Claim 5 (depends on 1) The polymer material of claim 1, wherein the monolithic product includes 10 wt % to 50 wt % lignin. ### Claim 6 (depends on 1) The polymer material of claim 1, wherein at least one of the first plurality of polymers and second plurality of polymers includes a polyethylene glycol segment. ### Claim 7 (depends on 1) The polymer material of claim 1, wherein at least one of the first plurality of polymers and second plurality of polymers includes poly(n-butyl acrylate). ### Claim 8 (depends on 1) The polymer material of claim 1, wherein at least one of the first plurality of polymers and second plurality of polymers includes a poly-acrylate polymer. ### Claim 9 A polymer material comprising: a first compound including a first lignin-based core with a first plurality of polymers attached to the first lignin-based core; and a second compound including a second lignin-based core with a second plurality of polymers attached to the second lignin-based core; wherein the first and second plurality of polymers interact and hold the first and second compounds together to form a monolithic product including the first compound and second compound; wherein at least one of the first plurality of polymers and second plurality of polymers includes a diene and/or dienophile group. ### Claim 10 A polymer material comprising: a first compound including a first lignin-based core with a first plurality of polymers attached to the first lignin-based core; and a second compound including a second lignin-based core with a second plurality of polymers attached to the second lignin-based core; wherein the first and second plurality of polymers interact and hold the first and second compounds together to form a monolithic product including the first compound and second compound; wherein at least one of the first plurality of polymers and second plurality of polymers includes at least one amino acid. ### Claim 11 (depends on 9) The polymer material of claim 9, wherein the first and second plurality of polymers are attached to their respective lignin-based cores via a triazole ring. ### Claim 12 (depends on 9) The polymer material of claim 9, wherein the first and second lignin-based cores have a major dimension of 1-1000 nm. ### Claim 13 (depends on 9) The polymer material of claim 9, wherein the monolithic product includes 10 wt % to 50 wt % lignin. ### Claim 14 (depends on 9) The polymer material of claim 9, wherein at least one of the first plurality of polymers and second plurality of polymers includes a polyethylene glycol segment. ### Claim 15 (depends on 9) The polymer material of claim 9, wherein at least one of the first plurality of polymers and second plurality of polymers includes poly(n-butyl acrylate). ### Claim 16 (depends on 9) The polymer material of claim 9, wherein at least one of the first plurality of polymers and second plurality of polymers includes a poly-acrylate polymer. ### Claim 17 (depends on 10) The polymer material of claim 10, wherein the first and second plurality of polymers are attached to their respective lignin-based cores via a triazole ring. ### Claim 18 (depends on 10) The polymer material of claim 10, wherein the first and second lignin-based cores have a major dimension of 1-1000 nm. ### Claim 19 (depends on 10) The polymer material of claim 10, wherein the monolithic product includes 10 wt % to 50 wt % lignin. ### Claim 20 (depends on 10) The polymer material of claim 10, wherein at least one of the first plurality of polymers and second plurality of polymers includes a polyethylene glycol segment. ### Claim 21 (depends on 10) The polymer material of claim 10, wherein at least one of the first plurality of polymers and second plurality of polymers includes poly(n-butyl acrylate). ### Claim 22 (depends on 10) The polymer material of claim 10, wherein at least one of the first plurality of polymers and second plurality of polymers includes a poly-acrylate polymer.