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05-28-2020 Zahida's Thesis Defence.pdf (2.55 MB)

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Introducing Functionality to Poly(arylene ether)s via Modification of Diphenyl sulfone – type Monomers

Humayun, Zahida
http://rave.ohiolink.edu/etdc/view?acc_num=wright1590685186666096

Abstract Details

2020, Master of Science (MS), Wright State University, Chemistry.
The synthesis of poly(arylene ether)s, with a pendent aryl iodide, was achieved via nucleophilic aromatic substitution (NAS) polycondensation of DI-DFDPS monomer. The platform diiodo-difluorodiphenyl sulfone monomer, DFDPS-DI (3), was prepared in one-step, via EAS chemistry. Structural characterization was provided by NMR spectroscopy, GC/MS, and elemental analysis. As “pre” approach didn’t work here, so “post” approach was used to synthesize N-heterocycle functionalized copolymers. The DI-copolymers were subjected to copper-catalyzed C-N coupling reaction with carbazole, phenoxazine, and indole and the syntheses of chromophore based copolymer were successfully carried out. A series of PAEs containing carbazole, phenoxazine, and indole substituents were synthesized and characterized. The copolymers were characterized by a combination of NMR spectroscopy, UV/Vis spectroscopy. DI-copolymers displayed had sufficient molecular weight (Mn) and thermal stability with 5% weight loss temperature (Tg) above 388 0C and glass transition temperature, Tg, value above 193 0C. Optical analyses provided that all modified copolymer materials emitted in the light blue region.
Eric Fossum, Ph.D. (Advisor)
Daniel Ketcha, Ph.D. (Committee Member)
Ioana Pavel, Ph.D. (Committee Member)
81 p.
Chemistry
copolymers; DI-copolymers; Organic Light Emitting Diode; OLED; Poly arylene ethers; Diphenyl sulfone; monomers

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Citations

  • Humayun, Z. (2020). Introducing Functionality to Poly(arylene ether)s via Modification of Diphenyl sulfone – type Monomers [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1590685186666096

    APA Style (7th edition)

  • Humayun, Zahida. Introducing Functionality to Poly(arylene ether)s via Modification of Diphenyl sulfone – type Monomers . 2020. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1590685186666096.

    MLA Style (8th edition)

  • Humayun, Zahida. "Introducing Functionality to Poly(arylene ether)s via Modification of Diphenyl sulfone – type Monomers ." Master's thesis, Wright State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=wright1590685186666096

    Chicago Manual of Style (17th edition)

wright1590685186666096
203
© 2020, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.