Pană Ana-Maria, Ordodi Valentin, Gherman Vasile, Sfîrloagă Paula, Dumitrel Gabriela-Alina
Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timişoara, 2 Victoriei Square, 300006 Timişoara, Romania.
The Institute of Research for Condensed Matter, 1 P. Andronescu Street, 300224 Timişoara, Romania.
Polymers (Basel). 2023 Jul 27;15(15):3194. doi: 10.3390/polym15153194.
Polymers derived from natural raw materials have become of great interest due to their increased biodegradable features and possible biocompatibility. Our group has successfully synthesized and characterized polymers derived from D-mannose oligomer (M), 2-hydroxy propyl acrylate (HPA), and methacrylate (HPMA) in different weight ratios. Their biodegradation was studied in liquid media with pure inoculum for the samples with the most sugar residue, and the results show that the methacrylate derivative M_HPMA1 lost about 50% of its weight during incubation. SEM/EDX techniques were employed to display the modifications of the samples during the biodegradation process. The glycopolymers were buried in garden soil, and the experiment proved that more than 40% of the weight of the M_HPA1 sample was lost during biodegradation, while the other samples encountered an average of about 32% weight loss. The biodegradation profile was fitted against linear and polynomial mathematical models, which enabled an estimate of about a year for the total degradation of the D-mannose glycopolymers sample in soil.
源自天然原料的聚合物因其增强的生物可降解特性和潜在的生物相容性而备受关注。我们的团队已成功合成并表征了由不同重量比的D-甘露糖低聚物（M）、丙烯酸2-羟丙酯（HPA）和甲基丙烯酸酯（HPMA）衍生的聚合物。对于糖残基含量最高的样品，在含有纯接种物的液体培养基中研究了它们的生物降解情况，结果表明甲基丙烯酸酯衍生物M_HPMA1在培养过程中重量损失了约50%。采用扫描电子显微镜/能谱仪（SEM/EDX）技术来展示生物降解过程中样品的变化。将这些糖聚合物埋入花园土壤中，实验证明在生物降解过程中M_HPA1样品重量损失超过40%，而其他样品平均重量损失约32%。将生物降解曲线与线性和多项式数学模型进行拟合，这使得能够估计出土壤中D-甘露糖糖聚合物样品完全降解大约需要一年时间。
