Najihah, Jamil and Hazlina, Husin and Ahmad Waseem, Alfida and Zachary, Aman and Zulkafli, Hassan (2018) Characterization and preparation of Polyvinyl Alcohol (PVA) as inhibitor in formation of hydrates. International Journal of Current Science, Engineering & Technology, 1 (S1). pp. 578-584. ISSN 2581-4311. (Published)
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Abstract
The thermal properties of PVA with different degree of hydrolysis (DH) was studied by preparation of aqueous polymer solution, followed by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR). The DSC result showed the typical partially crystalline materials, showing some phases of separation are characterized by a glass transition (Tg = 25-26 °C) related to the amorphous part of the material, followed by two endothermic peaks related to the melting point (Tm = 185-225) of the crystallites. Due to the same material (PVA) used, the main composition temperatures are close to each other (for peak I between 320 K and 350 K, and for peak II between 429 K and 430 K). Finally, FTIR confirmed that between the three materials P 100, P 87 and P 85, there were distinctness in the band absorbed between fully hydrolysed PVA, P 100 and partially hydrolysed PVA, P 85 and P 87.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Poly(vinyl alcohol); Degree of hydrolysis; Polymer characterization; Kinetic hydrate inhibitor |
| Subjects: | T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering |
| Depositing User: | Mrs. Neng Sury Sulaiman |
| Date Deposited: | 20 Mar 2019 01:25 |
| Last Modified: | 01 Sep 2020 01:57 |
| URI: | http://umpir.ump.edu.my/id/eprint/24425 |
| Download Statistic: | View Download Statistics |
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