Granted Patent
B2
US 12,497,548 · App. 18/128,691 · Granted Dec 16, 2025
Biomimetic polymer adhesives containing gallol groups
Inventors:
Jonathan J. Wilker (West Lafayette, IN); Nevin A. Naren (Los Angeles, CA); Tuhin Subhra Pal (West Bengal, IN)
Assignee:
Purdue Research Foundation
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Abstract
A biomimetic polymer adhesive comprising a poly (gallol-co-styrene) group, its use in dry and wet (e.g., underwater) adhesion, and its method of manufacturing.
Claims (16)
1 . A method of manufacturing a gallol-containing polymer adhesive, the method comprising the steps:
(i) mixing a dispersant and a surfactant in the presence of a solvent;
(ii) mixing a styrene monomer with 3,4,5-trialkoxy styrene monomer;
(iii) adding an initiator to the mixture of monomers of step (ii);
(iv) adding the initiator-monomer mixture of step (iii) to the mixture of step (i) to form monomer droplets;
(v) allowing a polymerization reaction in the monomer droplets under continuous stirring;
(vi) quenching the polymerization reaction to obtain 3,4,5-trialkoxy styrene-co-styrene; and
(vii) hydrolyzing the 3,4,5-trialkoxy styrene-co-styrene to obtain the gallol-containing polymer.
2 . The method of claim 1 , wherein the alkoxy group is methoxy, ethoxy, or silyloxy.
3 . The method of claim 1 , wherein the dispersant and the surfactant can be used in a ratio of about 2%:4% to about 4%:2%.
4 . The method of claim 1 , wherein the solvent is water.
5 . The method of claim 1 , wherein the dispersants are selected from polyvinyl alcohol (PVA), modified PVA, polyvinylpyrrolidine (PVP), and hydroxylpropylmethyl cellulose.
6 . The method of claim 5 , wherein the dispersant is PVA.
7 . The method of claim 1 , wherein the surfactant is sodium dodecyl sulfate.
8 . The method of claim 1 , wherein the initiator is selected from dibenzoyl peroxide (BPO), tert-butyl peroxide, diacetyl peroxide, lauroyl peroxide, dicumyl peroxide, 2,2′-azobisizobutyronitrile (AIBN), 2,2′-azobis(2-methylpropionitrile), 2,2′-azobis(2-methyl butyronitrile), or a combination of two or more thereof.
9 . The method of claim 8 , wherein the initiator is BPO or AIBN.
Assignments (2)
CONFIRMATORY LICENSE
Recorded Feb 3, 2025
From: PURDUE UNIVERSITY
To: THE GOVERNMENT OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Reel/Frame 070096/0085 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Apr 12, 2023
From: WILKER, JONATHAN J; NAREN, NEVIN A.; PAL, TUHIN SUBHRA
To: PURDUE RESEARCH FOUNDATION
Reel/Frame 063296/0529 →
Continuity (2)
Provisional Application
63347320
· May 31, 2022
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