Influence of reaction pH towards the physicochemical characteristics of phosphorylated polyvinyl alcohol-aluminum phosphate nanocomposite

Saat, Asmalina Mohamed and Kamil, Md Salim and Hamizi, Nor Aliya and Badruddin, Irfan Anjum and Ghazali, Nadiah and Sagadevan, Suresh and Kamangar, Sarfaraz and Khan, T. M. Yunus and Johan, Mohd Rafie (2021) Influence of reaction pH towards the physicochemical characteristics of phosphorylated polyvinyl alcohol-aluminum phosphate nanocomposite. Coatings, 11 (9). ISSN 2079-6412, DOI https://doi.org/10.3390/coatings11091105.

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Abstract

The present study deals with the formation of a phosphorylated polyvinyl alcohol (PPVA)-Aluminum Phosphate (AlPO4) nanocomposite, changing the pH solution under the two-step process involving the phosphorylation of polyvinyl alcohol (PVA) followed by the conjugation with AlPO4. The composite was formed by varying the pH of the solution in the range of 7-12 and the reflected changes in the product's morphology, crystallinity, surface nature, thermal stability, etc. were recorded using FESEM, XRD, FTIR, UV-Vis spectroscopy, TGA, etc. From the analysis, it was found that the particles formed with two different sizes of the probed pH, and at pH 10 they were homogeneously distributed. In addition, the morphology of the PPVA-AlPO4 composite also seems to be altered with respect to the pH and this is due to the differences in the amount of H+ and OH- anions. Thus, from the overall analysis, it can be indicated that pH 10 needs to be maintained for the formation of a spherical shape and uniformly distributed PPVA-AlPO4 nanocomposite.

Item Type: Article
Funders: UM PPP Grant[PS115-2010B], UM PPP Grant[PV129/2012A], UM High Impact Research Grant[C/625/1/HIR-Eng-12], King Khalid University[R.G.P. 1/101/42]
Uncontrolled Keywords: Phosphorylation;Polyvinyl alcohol;AlPO4 nanocomposite;pH influence;Surface morphology;Thermal properties
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 16 Jun 2022 02:30
Last Modified: 16 Jun 2022 02:30
URI: http://eprints.um.edu.my/id/eprint/34261

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