Realization of the shape memory effect in a composite material PLA/Diopside with different supramolecular structures

IF 4.1 2区化学 Q2 POLYMER SCIENCE

Polymer Pub Date : 2024-11-12 DOI:10.1016/j.polymer.2024.127831

Polina Kovaleva , Inna Bulygina , Anna Cheremnykh , Eugene Statnik , Ekaterina Ivantsova , Iuliia Sadykova , Mikhail Zadorozhnyy , Artem Korol , Fedor Senatov

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Abstract

This study explores the realization of the shape memory effect (SME) in composite materials composed of polylactide (PLA) filled with diopside particles exhibiting varied supramolecular structures, such as spherulites and amorphous lamellar structures. We investigated the influence of diopside filler on the thermomechanical properties and shape recovery behavior of PLA-based composites. Different supramolecular structures of PLA were achieved through controlled crystallization processes. Comprehensive characterization techniques, including differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA), were employed to elucidate the structure-property relationships. The results indicate that the diopside enhances the SME of PLA composites, with the degree of improvement being dependent on the specific supramolecular structure of the polymer matrix. Our findings provide insights into the design of advanced SMPs with tailored properties for potential applications in medicine.

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在具有不同超分子结构的聚乳酸/双面胶复合材料中实现形状记忆效应

本研究探讨了在由聚乳酸（PLA）组成的复合材料中实现形状记忆效应（SME）的问题，复合材料中填充的透辉石颗粒具有不同的超分子结构，例如球状和无定形片状结构。我们研究了透辉石填料对聚乳酸基复合材料的热力学性质和形状恢复行为的影响。通过可控结晶过程实现了聚乳酸的不同超分子结构。采用了包括差示扫描量热法（DSC）、扫描电子显微镜（SEM）和动态力学分析（DMA）在内的综合表征技术来阐明结构与性能之间的关系。结果表明，透辉石可增强聚乳酸复合材料的 SME，其改善程度取决于聚合物基体的特定超分子结构。我们的研究结果为设计具有量身定制特性的先进 SMP 提供了见解，这些 SMP 有可能应用于医药领域。

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来源期刊

Polymer 化学-高分子科学

CiteScore

7.90

自引率

8.70%

发文量

959

审稿时长

32 days

期刊介绍： Polymer is an interdisciplinary journal dedicated to publishing innovative and significant advances in Polymer Physics, Chemistry and Technology. We welcome submissions on polymer hybrids, nanocomposites, characterisation and self-assembly. Polymer also publishes work on the technological application of polymers in energy and optoelectronics. The main scope is covered but not limited to the following core areas: Polymer Materials Nanocomposites and hybrid nanomaterials Polymer blends, films, fibres, networks and porous materials Physical Characterization Characterisation, modelling and simulation* of molecular and materials properties in bulk, solution, and thin films Polymer Engineering Advanced multiscale processing methods Polymer Synthesis, Modification and Self-assembly Including designer polymer architectures, mechanisms and kinetics, and supramolecular polymerization Technological Applications Polymers for energy generation and storage Polymer membranes for separation technology Polymers for opto- and microelectronics.