Analysis of Distribution of Polyvinyl Alcohol Hydrogel Nanocrystalline by using SAXS Synchrotron

4th International Conference on Advanced Materials Science and Technology

Sunaryono^1,2 ; Taufiq, A.^1,2 ; Mufti, N.^1,2 ; Hidayat, N.^1,2 ; Rugmai, S.^3 ; Soontaranon, S.^3 ; Putra, E.G.R.^4,5 ; Darminto^6

Department of Physics, Faculty of Mathematics and Natural Sciences, State University of Malang, Jalan Semarang No 5, Malang

65145, Indonesia^1

Center for Minerals and Advanced Materials, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, State University of Malang, Jl. Semarang 5, Malang

65145, Indonesia^2

Synchrotron Light Research Institute, 111 University Venue, Muang District, Nakhon Ratchasima

30000, Thailand^3

Center for Science and Technology of Advanced Materials, National Nuclear Energy Agency of Indonesia (BATAN), Kawasan Puspiptek Serpong, Tangerang

15134, Indonesia^4

Sekolah Tinggi Teknologi Nuklir, National Nuclear Energy Agency of Indonesia, Yogyakarta

55281, Indonesia^5

Department of Physics, Faculty of Mathematics and Natural Sciences, Sepuluh November Institute of Technology (ITS), Kampus ITS Sukolilo, Surabaya

60111, Indonesia^6

关键词: distribution;    Nanocrystallines;    PVA hydrogel;    SAXS;    Structural dimensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012041/pdf
DOI  :  10.1088/1757-899X/202/1/012041

来源: IOP

【 摘 要 】

Polyvinyl alcohol (PVA) hydrogel has been successfully synthesized through freezing-thawing (F-T) process by using time-variation. This work is aimed to investigate the distribution of nanocrystalline from the hydrogel. Fourier Transform Infrared (FTIR) Spectroscopy, Differential Thermal Analysis/Thermogravimetric (DTA/TG), and Synchrotron Small-Angle X-ray Scattering (SAXS) were used as the instruments in characterizing the PVA hydrogel, respectively to observe the frequency of absorption, thermal degradation, and structural dimensions. The functional groups which represent the PVA polymer chains were verified on the wavenumber of 1450-1480 cm-1and 850-870 cm-1which is in accordance with the stretching of -CH2vibration mode. The absorption band of PVA polymer chains was also found on the wavenumber of 1090-1150 cm-1which is in accordance with the stretching of carboxyl vibration mode (CO), and this wavenumber gave a contribution towards the crystallinity of PVA polymer. Furthermore, the PVA polymer only interacted with the distilled water in the sample of PVA hydrogel without experiencing any chemical interactions between the PVA polymer and other substances. Meanwhile, the graphic of PVA hydrogel thermal degradation shows three thermal decompositions which are indicated by three areas in which there was sample weight loss. The second decomposition with sample weight loss was equivalent to 61.62%-73.04% occurred at the temperature of 282-376 °C which became the highest sample weight loss due to polymer chain degradation. Teubner-Strey and Beaucage models were used to analyze the characterization of structural dimension and distribution of PVA Hydrogel nanocrystalline with SAXS Synchrotron. With a high compatibility between the model data and the experiment, the average structural dimension of PVA hydrogel nanocrystalline is the equivalent of 3.96 nm, with an inter-crystalline average distance of 16.9 nm. These results indicate that PVA hydrogel is very potential to be applied as a primary material for human implants.