Abstract Polybutylene succinate (PBS) were processed in melt extrusion by dispersion of organo-modified layered double hydroxide (LDH). Depending on the organic anion interleaved into LDH fillers (L-tyrosine (TYR), L-tryptophan (TRP), L-ascorbate (ASA) and 3-(4-hydroxyphenyl)propionate (HPP)), it was possible to control and tune the properties of the resulting PBS composites. Each LDH filler is found to act differently toward PBS, thus modifying its viscoelastic properties (as expressed by a chain extending effect), its rate of hydrolysis and photo-degradation or its antibacterial activity. The highest chain extending effect was observed in the case of LDH with L-tryptophan, the worst – with L-ascorbate anion. However, L-ascorbate anions interleaved into LDH present 100% activity in antibacterial properties. A better compromise may be achieved when PBS is mixed with different LDHs such as those combining HPP and ASA, making possible to target efficiently multi-properties such as small rate of hydrolysis, photo-stability, biocide activity as well as chain extension, thus turning to a multifunctional (bio)nanocomposites with new possible applications. Finally, a possible scale-up is demonstrated on thin films.

中文翻译：

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赋予生物基聚丁二酸丁二醇酯多功能性的有机改性 LDH 填料：从实验室到可能的市场的扩展研究

摘要 聚丁二酸丁二醇酯 (PBS) 通过有机改性层状双氢氧化物 (LDH) 的分散进行熔融挤出加工。根据交织到 LDH 填料（L-酪氨酸 (TYR)、L-色氨酸 (TRP)、L-抗坏血酸 (ASA) 和 3-（4-羟基苯基）丙酸（HPP））中的有机阴离子，可以控制和调整所得 PBS 复合材料的特性。发现每种 LDH 填料对 PBS 的作用不同，从而改变其粘弹性（如扩链效应）、水解和光降解速率或其抗菌活性。在含有 L-色氨酸的 LDH 的情况下观察到最高的扩链效果，最差的是含有 L-抗坏血酸阴离子。然而，交错进入 LDH 的 L-抗坏血酸阴离子在抗菌性能方面表现出 100% 的活性。当 PBS 与不同的 LDHs 混合时可以实现更好的折衷，例如那些结合 HPP 和 ASA 的 LDH，从而可以有效地针对多种性质，例如低水解率、光稳定性、杀菌活性以及链延长，从而改变到具有新可能应用的多功能（生物）纳米复合材料。最后，在薄膜上证明了可能的放大。