Stepanova Mariia, Korzhikova-Vlakh Evgenia
Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia.
Polymers (Basel). 2022 Apr 5;14(7):1477. doi: 10.3390/polym14071477.
Aliphatic polyesters/cellulose composites have attracted a lot attention due to the perspectives of their application in biomedicine and the production of disposable materials, food packaging, etc. Both aliphatic polyesters and cellulose are biocompatible and biodegradable polymers, which makes them highly promising for the production of "green" composite materials. However, the main challenge in obtaining composites with favorable properties is the poor compatibility of these polymers. Unlike cellulose, which is very hydrophilic, aliphatic polyesters exhibit strong hydrophobic properties. In recent times, the modification of cellulose micro- and nanomaterials is widely considered as a tool to enhance interfacial biocompatibility with aliphatic polyesters and, consequently, improve the properties of composites. This review summarizes the main types and properties of cellulose micro- and nanomaterials as well as aliphatic polyesters used to produce composites with cellulose. In addition, the methods for noncovalent and covalent modification of cellulose materials with small molecules, polymers and nanoparticles have been comprehensively overviewed and discussed. Composite fabrication techniques, as well as the effect of cellulose modification on the mechanical and thermal properties, rate of degradation, and biological compatibility have been also analyzed.
脂肪族聚酯/纤维素复合材料因其在生物医学领域的应用前景以及在一次性材料、食品包装等生产中的应用前景而备受关注。脂肪族聚酯和纤维素都是生物相容性和可生物降解的聚合物，这使得它们在生产“绿色”复合材料方面极具潜力。然而，获得具有良好性能的复合材料的主要挑战在于这些聚合物之间的相容性较差。与亲水性很强的纤维素不同，脂肪族聚酯具有很强的疏水性。近年来，纤维素微米和纳米材料的改性被广泛认为是增强与脂肪族聚酯界面生物相容性、从而改善复合材料性能的一种手段。本综述总结了用于与纤维素制备复合材料的纤维素微米和纳米材料以及脂肪族聚酯的主要类型和性能。此外，还全面综述和讨论了用小分子、聚合物和纳米颗粒对纤维素材料进行非共价和共价改性的方法。还分析了复合材料的制备技术，以及纤维素改性对机械性能、热性能、降解速率和生物相容性的影响。
