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“One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation

Elsen, Andrea M.
http://rave.ohiolink.edu/etdc/view?acc_num=wright1279291050

Abstract Details

2009, Master of Science (MS), Wright State University, Chemistry.
The synthesis of fully soluble branched poly(arylene ether)s via an oligomeric A2 + B3 system, in which the A2 oligomers are generated in situ, is presented. This approach takes advantage of the significantly higher reactivity toward nucleophilic aromatic substitution reactions, NAS, of B2, 4-Fluorophenyl sulfone, relative to B3, tris(4-Fluorophenyl) phosphine oxide. The A2 oligomers were synthesized by reaction of Bisphenol-A and B2, in the presence of the B3 unit, at temperatures between 100 and 160 °C, followed by an increase in the reaction temperature to 180 °C at which point the branching unit was incorporated. The presence of branching was confirmed via 31P NMR spectroscopy and the thermal properties of the polymers were evaluated utitilizing TGA and DSC analyses.
Eric Fossum, PhD (Advisor)
Kenneth Turnbull, PhD (Committee Member)
William A. Feld, PhD (Committee Member)
62 p.
Chemistry
polymers; sulfone; Branched; branched polymer; 4-Fluorophenyl; Dendrimers; B3

Recommended Citations

Citations

  • Elsen, A. M. (2009). “One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1279291050

    APA Style (7th edition)

  • Elsen, Andrea. “One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation. 2009. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1279291050.

    MLA Style (8th edition)

  • Elsen, Andrea. "“One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation." Master's thesis, Wright State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=wright1279291050

    Chicago Manual of Style (17th edition)

wright1279291050
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© 2009, some rights reserved.Creative Commons License “One-Pot” Oligomeric A2 + B3 Approach to Branched Poly(arylene ether sulfone)s: Reactivity Ratio Controlled Polycondensation by Andrea M. Elsen is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Wright State University and OhioLINK.