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Functional Acrylate Resins for Shape Memory Polymer Microarchitectures


Salzman, Erika Emmanuelle (2020) Functional Acrylate Resins for Shape Memory Polymer Microarchitectures. Senior thesis (Major), California Institute of Technology. doi:10.7907/8870-1x03.


Shape memory polymers (SMPs) are materials that can undergo programmable shape change in response to a specific stimulus. The ability to undergo this reliable, three-dimensional shape change makes SMPs promising smart materials for applications like biomedical stents and sutures. However, to access areas like blood vessels in the eye, these materials must be fabricated with micron or submicron resolution. In this work, benzyl methacrylate-based, heat-responsive SMP microstructures were fabricated using two-photon lithography in a variety of three-dimensional designs. The effects of different fabrication conditions on the structures were studied, and Raman spectroscopy was used to probe network properties, including degree of polymerization.

The resin was also chemically functionalized prior to polymerization with BOC-protected amine groups via the thiol-Michael addition reaction, which allows for attachment of other useful functional groups to the surface of the structures. This chemistry was utilized for attachment of a dye as well as gold nanoparticles. When exposed to laser light, these nanoparticles can undergo localized surface plasmon resonance and serve as heat generators. The theoretical feasibility of using this heating technique to induce shape change in SMP microstructures is examined in this work.

Item Type:Thesis (Senior thesis (Major))
Subject Keywords:shape memory polymer, functional 3D microarchitectures
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Materials Science
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Greer, Julia R.
Thesis Committee:
  • None, None
Defense Date:4 June 2020
Non-Caltech Author Email:salzman.erika (AT)
Record Number:CaltechTHESIS:06032020-220309895
Persistent URL:
Salzman, Erika Emmanuelle0000-0002-2995-7864
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13775
Deposited By: Erika Salzman
Deposited On:04 Jun 2020 18:58
Last Modified:08 Nov 2023 00:27

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