Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Kavitha Thesis.pdf (2.21 MB)

ETD Abstract Container

Abstract Header

Synthesis and Characterization of Functionalized Poly(arylene ether sulfone)s using Click Chemistry

Neithikunta, Kavitha
http://rave.ohiolink.edu/etdc/view?acc_num=wright1476628166464853

Abstract Details

2016, Master of Science (MS), Wright State University, Chemistry.
Poly(arylene ether sulfone)s with pendent aryl iodide group was successfully synthesized via Nucleophilic aromatic polycondensation of 1-(3,5-difluorophenyl sulfonyl)-4-iodobenzene using 4,4’-difluorodiphenylsulfone (DFDPS) and Bisphenol A in the ratio 25:75:100. Iodo monomer was prepared by reacting 3,5-difluorodiphenyl sulfone with N-iodo succinimide (NIS). Using GC/MS and NMR spectroscopy, the quantitative analysis was done to this monomer. Modification was done to iodo copolymer using sodium azide and copper sulfate as catalyst to form azide copolymer. Further modification of the azide copolymer to triazole copolymers via Click Chemistry using different alkynes such as 1-octyne, phenyl acetylene, propargyl alcohol and acetylenedicarboxylic acid. Polymers characterization was done using 1H, 13C NMR, IR spectroscopy and SEC. The highest molecular weight (Mw) was found to be 19,033 Da with a PDI 3.0 for iodo copolymer and the least was found to be 6,888 with a PDI 2.5 for acetylenedicarboxylic acid derivative copolymer. Thermal analysis of polymers was done using TGA and DSC. The Td5% values were ranging from 260º to 476º. The highest Tg was 191º for phenyl derivative copolymer and the least was 174º for alkyl derivative copolymer. TGA was not ran on azide copolymer as it may contain explosive copper azide traces. IR spectroscopy was used to confirm the structures of azide copolymer, propargyl alcohol derivative and acetylenedicarboxylic acid derivative copolymers.
Eric Fossum, Ph.D. (Advisor)
William Feld, Ph.D. (Committee Member)
Daniel Ketcha, Ph.D. (Committee Member)
75 p.
Chemistry; Polymers
chemistry; polymers

Recommended Citations

Citations

  • Neithikunta, K. (2016). Synthesis and Characterization of Functionalized Poly(arylene ether sulfone)s using Click Chemistry [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1476628166464853

    APA Style (7th edition)

  • Neithikunta, Kavitha. Synthesis and Characterization of Functionalized Poly(arylene ether sulfone)s using Click Chemistry . 2016. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1476628166464853.

    MLA Style (8th edition)

  • Neithikunta, Kavitha. "Synthesis and Characterization of Functionalized Poly(arylene ether sulfone)s using Click Chemistry ." Master's thesis, Wright State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1476628166464853

    Chicago Manual of Style (17th edition)

wright1476628166464853
947
© 2016, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.