Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites
Ali, D., Khaireldin, N., El-Hashash, M., elsaidi, M., El-Sayed, A., Abdelwahed, N., rabie, S. (2020). Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites. EKB Journal Management System, 63(12), 4833-4849. doi: 10.21608/ejchem.2020.28830.2618
dina Ali; Nahid Khaireldin; Maher El-Hashash; manal elsaidi; Ahmed A. El-Sayed; Nayera A.M. Abdelwahed; samira taha rabie. "Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites". EKB Journal Management System, 63, 12, 2020, 4833-4849. doi: 10.21608/ejchem.2020.28830.2618
Ali, D., Khaireldin, N., El-Hashash, M., elsaidi, M., El-Sayed, A., Abdelwahed, N., rabie, S. (2020). 'Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites', EKB Journal Management System, 63(12), pp. 4833-4849. doi: 10.21608/ejchem.2020.28830.2618
Ali, D., Khaireldin, N., El-Hashash, M., elsaidi, M., El-Sayed, A., Abdelwahed, N., rabie, S. Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites. EKB Journal Management System, 2020; 63(12): 4833-4849. doi: 10.21608/ejchem.2020.28830.2618

Synthesis, characterization and in-vitro antimicrobial evaluation of thermally and photostable Schiff base-modified PVC/nanocomposites

Egyptian Journal of Chemistry
Article 16, Volume 63, Issue 12, December 2020, Page 4833-4849  XML PDF (1.22 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2020.28830.2618
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Authors
dina Ali1; Nahid Khaireldin2; Maher El-Hashash3; manal elsaidi4; Ahmed A. El-Sayedorcid 5; Nayera A.M. Abdelwahed4; samira taha rabie email 1
1national research centre
2NRC
3Chemistry Department, Faculty of Science Ain Shams University Cairo 11566, Egypt
4nrc
5Photochemistry Department, Industrial Research Division, national research Centre, Dokki, Cairo, Egypt
Abstract
Two Schiff base derivatives, 4-[(2, 5-dimethoxy phenylimino)-methyl] phenol, SB1 and 4-[(2-hydroxy benzylidine)-amino] phenol SB2, have been prepared and used as modifiers for polyvinyl chloride (PVC). Chemical modification of PVC was performed using these Schiff bases in presence of AgNO3 to obtain two modified PVC nanocomposite, PVC-SB1/AgNPs and PVC-SB2/AgNPs, and their chemical structures were confirmed by FTIR, 1H-NMR, 13C NMR and Mass spectroscopy. Scanning and transmission electron microscopy were performed for the modified polymer nanocomposites. The SEM and TEM micrographs of PVC-SB/AgNPs showed homogeneous surface polymeric matrix with uniform distribution of AgNPs, and their diameters are in the nanoscale. Moreover, thermal and photostabilities as well as mechanical properties of the modified polymer nanocomposites were also investigated. Moreover, mechanical properties of PVC-SB/AgNPs were also investigated. Antimicrobial activity of the modified PVC was evaluated against two Gram +ve bacteria (Bacillus subtilis and Staphylococcus aureus) and two Gram -ve bacteria (Escherichia coli and Pseudomonas aeruginosa) as well as Candida albicans as fungus.
Keywords
Modified PVC; Schiff base; photostability; antimicrobial activity
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