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PET-RAFT Polymerization: Under Flow Chemistry and Surface Initiated Polymerization

Rong, Lihan
http://orcid.org/0000-0002-9351-059X
http://rave.ohiolink.edu/etdc/view?acc_num=case1664550187903817

Abstract Details

2023, Doctor of Philosophy, Case Western Reserve University, Macromolecular Science and Engineering.
Due to the effort in the past two decades, reversible addition-fragmentation chain transfer (RAFT) polymerization has developed into one of the most versatile and powerful living radical polymerization (LRP) for preparing polymers with different architectures. However, challenge remains because the presence of oxygen will quench the initiation and propagation radicals. In recent years, photoinduced electron/energy transfer-RAFT (PET-RAFT) polymerization has been developed. This technique uses visible light to initiate the reaction and is compatible with ambient condition and green solvents. It also maintains the ability of producing well-defined polymers and possess high potential as an alternative of conventional RAFT technique. Chapter 1 reviewed basics of Raft polymerization and recent efforts in developing PET-RAFT polymerization. In addition, applications of PET-RAFT in flow chemistry and on polymer brushes are also discussed. Chapter 2 reported synthesis of a series of hyperbranched polymers via PET-RAFT self-condensing vinyl polymerization (SCVP) in a flow reactor, which showed considerable controllability in molecular weight and branching density by adjusting the feeding ratio of monomer to transmer. The synthesis of block copolymers was also discussed. Chapter 3 demonstrated a new approach for preparing polymer brushes on conductive surface via surface-initiated PET-RAFT polymerization (SI-PET-RAFT), which showed capability of encapsulating gold nanoparticles. In chapter 4, four different architectures of linear or branched polymers were fabricated on conductive surface using SI-PET-RAFT. Their difference in morphology and encapsulation ability was also discussed. Finally in chapter 5, conclusion, perspectives, and future work based on chapter 2-4 is represented.
Rigoberto Advincula (Advisor)
Gary Wnek (Committee Chair)
Fu-sen Liang (Committee Member)
Mike Hore (Committee Member)
Valentin Rodionov (Committee Member)
199 p.
Polymer Chemistry; Polymers
polymer brush, flow chemistry, PET-RAFT, photopolymerization, visible light polymerization, electrodeposition, grafting from

Recommended Citations

Citations

  • Rong, L. (2023). PET-RAFT Polymerization: Under Flow Chemistry and Surface Initiated Polymerization [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1664550187903817

    APA Style (7th edition)

  • Rong, Lihan. PET-RAFT Polymerization: Under Flow Chemistry and Surface Initiated Polymerization. 2023. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1664550187903817.

    MLA Style (8th edition)

  • Rong, Lihan. "PET-RAFT Polymerization: Under Flow Chemistry and Surface Initiated Polymerization." Doctoral dissertation, Case Western Reserve University, 2023. http://rave.ohiolink.edu/etdc/view?acc_num=case1664550187903817

    Chicago Manual of Style (17th edition)

case1664550187903817
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© 2022, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.