Effect of Poly(ethylene glycol) Oligomer on the Polylactide Matrix in Composites Obtained from Solution

IF 0.58 Q4 Materials Science

Polymer Science, Series D Pub Date : 2026-09-04 DOI:10.1134/S1995421226700929

A.-T. T. Tandelov, Yu. V. Tertyshnaya, A. Yu. Gervald, G. A. Buzanov

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Abstract

Modern requirements for the eco-friendliness of materials are stimulating the search for biodegradable polymers with improved performance characteristics. Polylactide, obtained from renewable sources, offers high potential in this field, but its rigidity and brittleness limit its applications. In this study, the effect of poly(ethylene glycol) oligomer on the structural and physicomechanical properties of polylactide-based composites was studied. The content of poly(ethylene glycol) in the composites ranged from 5 to 15 wt %. Differential scanning calorimetry study demonstrated that the melting temperature and the degree of crystallinity of polylactide decrease with increasing content of the oligomer additive. Analysis of the X-ray diffraction patterns of the composites confirmed the formation of a more amorphous phase. Optical microscopy revealed changes in surface morphology and structural order. Composites with a poly(ethylene glycol) content of 10–15 wt % were characterized by improved relative elongation and acceptable level of strength, which expands the possibilities of their practical application.

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聚乙二醇低聚物对溶液制备的复合材料中聚丙交酯基质的影响

现代对材料生态友好性的要求促使人们寻找具有改进性能特征的可生物降解聚合物。从可再生资源中获得的聚丙交酯在这一领域具有很大的潜力，但其刚性和脆性限制了其应用。本文研究了聚乙二醇低聚物对聚乳酸基复合材料结构和物理力学性能的影响。复合材料中聚乙二醇的含量为5% ~ 15%。差示扫描量热法研究表明，随着低聚物添加剂含量的增加，聚丙交酯的熔融温度和结晶度降低。复合材料的x射线衍射图分析证实了非晶相的形成。光学显微镜显示了表面形貌和结构顺序的变化。聚乙二醇含量为10-15 wt %的复合材料具有提高的相对伸长率和可接受的强度水平的特点，这扩大了其实际应用的可能性。

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来源期刊

Polymer Science, Series D Materials Science-Polymers and Plastics

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Polymer Science, Series D publishes useful description of engineering developments that are related to the preparation and application of glues, compounds, sealing materials, and binding agents, articles on the adhesion theory, prediction of the strength of adhesive joints, methods for the control of their properties, synthesis, and methods of structural modeling of glued joints and constructions, original articles with new scientific results, analytical reviews of the modern state in the field.