Naheed Shazia, Shahid Muhammad, Zahoor Rashida, Siddique Zumaira, Rasool Nasir, Haider Sajjad, Khan Shaukat
Department of Chemistry, Government College University, Faisalabad 38030, Pakistan.
Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia.
Polymers (Basel). 2021 Oct 5;13(19):3416. doi: 10.3390/polym13193416.
A series of xanthan gum/titanium dioxide-based polyurethane elastomers were synthesized through the prepolymer method by the step growth polymerization. In the present work, xanthan gum was used as a bioactive material, with TiO as a nanofiller. The structural characterization of newly prepared polyurethane samples was carried out with the help of Fourier Transform Infrared Spectroscopy. Thermogravimetric Analysis gave us the information about the thermal stability. Differential Scanning Calorimetry directs the thermal changes in the polyurethane samples. The Atomic Force Microscopy technique revealed that the degree of micro-phase separation increases by augmenting the % age of TiO, which was further confirmed by X-Ray Diffraction results. XRD confirmed the crystallinity of the final sample at about 2θ = 20°. Antimicrobial activity determined through the Disc Diffusion Method, and the results indicated that the synthesized polyurethane have antimicrobial activity. The water absorption capability of the polyurethane samples showed that these polymer samples are hydrophilic in nature.
通过逐步增长聚合的预聚物法合成了一系列基于黄原胶/二氧化钛的聚氨酯弹性体。在本工作中，黄原胶用作生物活性材料，二氧化钛用作纳米填料。借助傅里叶变换红外光谱对新制备的聚氨酯样品进行了结构表征。热重分析为我们提供了有关热稳定性的信息。差示扫描量热法指导聚氨酯样品的热变化。原子力显微镜技术表明，通过增加二氧化钛的百分比，微相分离程度增加，X射线衍射结果进一步证实了这一点。X射线衍射证实最终样品在约2θ = 20°处具有结晶性。通过纸片扩散法测定抗菌活性，结果表明合成的聚氨酯具有抗菌活性。聚氨酯样品的吸水能力表明这些聚合物样品本质上是亲水性的。
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