Mechanical properties of gels formed by nickel and cobalt complexation with histamine-grafted polyisoprene and polystyrene in non-aqueous solvents
Name
1256550177-MIT.pdf
Size
1.63 MB
Format
Adobe PDF
Checksum (MD5)
40a7eab913d2e2077d312eba582e4675
Author(s)
Laris, Omar A.
Advisor(s)
Niels Holten-Andersen.
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
Leveraging metal-coordination crosslinks for materials design of polymers can enable fine-tuning of the mechanical properties of rubbers without requiring the use of sophisticated vulcanization pathways. In this work, we synthesized several polyisoprene-graft-histamine gels in toluene, coordinated by Ni²⁺ and Co²⁺ ions. In addition, we synthesized polystyrene-graft-histamine-Ni(OH)₂ composites in DMF, with Ni(OH)₂ nanoparticles nucleated and grown in situ upon the addition of a hydroxide. The viscoelastic mechanical properties of these materials are improved relative to the base polymers.
Description
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, May, 2020
Cataloged from the official PDF version of thesis.
Includes bibliographical references (page 28).
Subjects
Materials Science and Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
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MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
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