- Collection:
- Atlanta University and Clark Atlanta University Theses and Dissertations
- Title:
- Copolymerization of 3-substituted heterocyclic conductive monomers as nanofillers for Silk Fibroin nanocompasites for electronic skins, 2025
- Contributor to Resource:
- Clark Atlanta University
- Date of Original:
- 2025
- Subject:
- Dissertations, Academic
- Location:
- United States, 39.76, -98.5
United States, Georgia, Fulton County, Atlanta, 33.749, -84.38798 - Medium:
- theses
dissertations - Type:
- Text
- Format:
- application/pdf
- Description:
- Silk Fibroin (SF) exhibits excellent mechanical properties as a function of the synergy between the hydrophobic crystalline and hydrophilic amorphous domain which raises the possibility of a nanofiller being included in one of the two domains. Recently organic semi-conductor materials based on heterocyclic monomers have been researched and used for technological applications in electronics, yet applications of such polymers are still limited because poor solubility in common solvents although various substitutions on the monomer units can increase the solubility of such polymers; however, it decreases the conductivity by increasing the interchain spacing and inhibiting transverse charge carriers hopping as well as some influences on the electronic structure of the π-conjugated system. One approach to overcoming the conducting polymer limitations has been the copolymerization of two conducting monomers. For this experiment, pyrrole monomer (Py) will be copolymerized with thiophene (Th), 3-bromothiophene (3BT) and 3-methylthiophene (3MT) to be incorporated as nanofillers with MoS2 for Silk Fibroin (SF) nanocomposites. FT-IR and XRD confirmed the SF/filler nanocomposite structure. DSC and thermal stability examined the effect of the inclusion of the fillers within the SF. 4-point probe analysis confirmed SF/filler nanocomposites with a resistivity of 20-200Ω/sq and a sheet resistance of 16.93-169.34Ω/mm2. Cyclic Voltammetry analysis of 10 cycles for SF/filler nanocomposites with a current ranging from 0-0.4 A. Once the PPy is copolymerized with a 3-subsititued thiophene monomer as a nanocomposite, the conductance goes from ~1x10-5 to 1x10-3A. Once the nanocomposites were doped with 1M HCL, the conductance reaches a maximum of 0.15A for the PPy nanocomposite. Once copolymerized with the thiophen and the 3-subsitiuted thiophene monomer, the conductance increases to a maximum of 0.4A.
- External Identifiers:
- Metadata URL:
- https://hdl.handle.net/20.500.12322/cau.td:2025_Gladney_William
- Language:
- eng
- Additional Rights Information:
- All works within this collection are reserved by the author of the scholarship/research. Permission is granted for these materials to be reproduced for personal, non-commercial purposes provided that the author and (Atlanta University Center Robert W. Woodruff Library OR CAU Graduate Programs) are properly acknowledged.
- Original Collection:
- Atlanta University and Clark Atlanta University Theses and Dissertations
- Holding Institution:
- Atlanta University Center Robert W. Woodruff Library
- Rights:
-
