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Synthesis and Characterization of Halatopolymers by Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerization

Yang, Mo
http://rave.ohiolink.edu/etdc/view?acc_num=akron1471512556

Abstract Details

2016, Master of Science, University of Akron, Polymer Engineering.
A halatopolymer is a class of ionically-bonded materials that display both salt-like and polymer-like properties. Due to the presence of the ionic-bond in the main polymer chain, halatopolymers show some unique thermal and mechanical properties. Reversible Addition Fragmentation chain Transfer (RAFT) polymerization is a kind of controlled free radical polymerization which has been widely used in the synthesis of homopolymers or block copolymers. Trithiocarbonates (TTC) compounds have played an essential role in RAFT polymerization as chain transfer agents. In this work, the concepts of halatopolymers and RAFT polymerization have been combined by using carboxylic acid-terminated trithiocarbonate RAFT agent to synthesis trithiocarbonate-containing halatopolymers. The 1H NMR spectra and FTIR spectra confirmed the successful synthesis of trithiocarbonate-containing halatopolymers. Then these trithiocarbonate-containing halatopolymer were used as RAFT agents to synthesize halato carboxy-telechelic polystyrene homopolymers by solution polymerization. TGA, GPC and viscosity tests were used to characterize the structure and properties of the halato carboxy-telechelic polystyrenes. The calcium carboxy-telechelic polystyrene-b-poly(n-butyl acrylate)-b-polystyrene triblock copolymers were synthesized by using calcium carboxy-telechelic polystyrenes as RAFT agents. Thermal and rheological properties of these polymers were characterized, where the intermolecular ionic interactions strongly influence the mechanical properties compared to the non-ionic ABA triblock copolymers.
Kevin Cavicchi (Advisor)
Nicole Zacharia (Committee Member)
David Simmons (Committee Chair)
76 p.
Polymer Chemistry; Polymers
Halatopolymer, RAFT polymerization, Homopolymer, Block copolymer

Recommended Citations

Citations

  • Yang, M. (2016). Synthesis and Characterization of Halatopolymers by Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerization [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1471512556

    APA Style (7th edition)

  • Yang, Mo. Synthesis and Characterization of Halatopolymers by Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerization. 2016. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1471512556.

    MLA Style (8th edition)

  • Yang, Mo. "Synthesis and Characterization of Halatopolymers by Reversible Addition Fragmentation Chain Transfer (RAFT) Polymerization." Master's thesis, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1471512556

    Chicago Manual of Style (17th edition)

akron1471512556
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© 2016, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.