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Photo-Crosslinking, Bio-Inspired Terpolymer Adhesives Intended for Medical Applications

A bio-inspired, modular terpolymer adhesive has been synthesized containing three different functionalities: a photocrosslinking segment, wet adhesion segment, and a water soluble
segment. Wet adhesion is brought on by an amino acid from mussel byssal plaques called 3,4-dihydroxyphenyl–L-alanine, which has been known to generate strong bonding under wet conditions.
The photocrosslinking segment consists of an anthracene based monomer used for mechanical fortification of polymer chains. The water soluble segment consists of poly(acrylic acid), which
has been known to increase water solubility of polymers and increase adhesion strength of adhesives. The terpolymer was designed to easily applicable using biologically friendly solvents
including water and ethanol. Structural design was confirmed by NMR and UV-Vis spectroscopy. Reversible cycloaddition reactions were executed using a handheld UV lamp along with a
photoreactor. Molecular weight increases were seen from 4.120 x 10⁴ Da to 7.429 x 10⁴ Da. Lap shear strength testing showed effects of UV exposure through increases in adhesion energy
above 450%. Multiple application variables were tested to determine optimal conditions, such as solvent, concentration, and substrate. Currently, optimal conditions show a 1:1 weight ratio
of polymer:solvent in water for all surfaces. / A Thesis submitted to the Materials Science and Engineering Program in partial fulfillment of the requirements for the degree of Master of Science. / Fall Semester 2015. / November 5, 2015. / Adhesives, Anthracene, Biomimetic, DOPA, Photo-crosslinking, Terpolymer / Includes bibliographical references. / Hoyong Chung, Professor Directing Thesis; Justin Kennemur, Committee Member; William Oates, Committee Member.

Identiferoai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_291297
ContributorsHarper, Tristan (authoraut), Chung, Hoyong (professor directing thesis), Kennemur, Justin G. (committee member), Oates, William S. (committee member), Florida State University (degree granting institution), Graduate School (degree granting college), Program in Materials Science (degree granting department)
PublisherFlorida State University
Source SetsFlorida State University
LanguageEnglish, English
Detected LanguageEnglish
TypeText, text
Format1 online resource (51 pages), computer, application/pdf

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