聚羟基烷酸酯聚合物薄膜纳米力学性能的定量分析

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-02-03 DOI:10.1016/j.porgcoat.2025.109092

Fares D.E. Ghorabe , Ashish T.S. Ireddy , Pavel Zun , Mikhail Zhukov , Dmitry A. Kozodaev , Tatiana G. Volova , Ekaterina I. Shishatskaya , Ekaterina V. Skorb

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引用次数: 0

摘要

聚合物的机械性能，特别是在纳米尺度上，对它们在各种应用中的性能至关重要。本研究利用原子力显微镜（AFM）研究了聚（3-羟基丁酸酯）[(P3HB)]、聚（3-羟基丁酸酯-共戊酸酯）[(P3HBV)]和聚（3-羟基丁酸酯-co-4-羟基丁酸酯）[(P3HB4HB)]三种聚羟基烷酸酯（PHA）聚合物的纳米力学性能。此外，还分析了三种不同厚度的P3HBV膜（10 μm、30 μm和60 μm），分别标记为10-P3HBV、30-P3HBV和60-P3HBV。基于afm的力-距离曲线可以精确测量表面特性；对所研究的材料进行分析，以确定表面杨氏模量（使用Derjaguin-Muller-Toporov （DMT）方法）、粘附力、刚度和高度域。结果表明，聚合物薄膜的组成和厚度显著影响表面纳米力学特性、孔径、润湿性和材料结晶度。较厚的薄膜表现出不同的力学和表面性能特征，强调聚合物链相互作用和结构组织的作用。这些发现强调了定制聚合物组成和结构参数以优化其机械性能的重要性，特别是在生物医学领域。这种全面的纳米级表征为设计和开发用于各种技术和生物医学用途的pha基材料提供了有价值的见解。

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Quantitative analysis of nanomechanical properties of polyhydroxyalkanoate polymer films

The mechanical properties of polymers, particularly at the nanoscale, are critical for their performance in various applications. This study investigates the nanomechanical properties of three polyhydroxyalkanoate (PHA) polymers using Atomic Force Microscopy (AFM): poly(3-hydroxybutyrate) [(P3HB)], poly(3-hydroxybutyrate-co-valerate) [(P3HBV)], and poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [(P3HB4HB)]. In addition, three different thicknesses of P3HBV films (10 μm, 30 μm, and 60 μm) were analyzed, labeled as 10-P3HBV, 30-P3HBV, and 60-P3HBV, respectively. AFM-based force-distance curves allowed for the precise measurement of surface properties; the investigated material was analyzed to determine the surface Young's modulus (using the Derjaguin–Muller–Toporov (DMT) method), adhesion, stiffness, and height domains.

The results reveal that polymer films composition and thickness significantly influence surface nanomechanical characteristics, pore size, wettability, and material crystallinity. Thicker films exhibited distinct mechanical and surface property profiles, emphasizing the role of polymer chain interactions and structural organization. These findings underscore the importance of tailoring polymer composition and structural parameters to optimize their mechanical properties for targeted applications, particularly in the biomedical field. This comprehensive nanoscale characterization provides valuable insights into the design and developing of PHA-based materials for diverse technological and biomedical uses.

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.