Puchalski Michał, Szparaga Grzegorz, Biela Tadeusz, Gutowska Agnieszka, Sztajnowski Sławomir, Krucińska Izabella
Faculty of Material Technologies and Textile Design, Department of Material and Commodity Sciences and Textile Metrology, Centre of Advanced Technologies of Human-Friendly Textiles "Pro Humano Tex", Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-301 Lodz, Poland.
Polymers (Basel). 2018 Mar 1;10(3):251. doi: 10.3390/polym10030251.
In this paper, the influence of the various degradation conditions, on the molecular and supramolecular structure of polybutylene succinate (PBS) and polybutylene succinate adipate (PBSA) copolymer during degradation is described. The experiment was carried out by the use of injection molded samples and normalized conditions of biodegradation in soil, composting and artificial weathering. Materials were studied by size-exclusion chromatography (SEC) coupled with multiangle laser light scattering (MALLS) detection and wide-angle X-ray diffraction (WAXD). Additionally, the physical and mechanical properties of the samples were determined. The performed experiments clearly show difference impacts of the selected degradation conditions on the macroscopic, supramolecular and molecular parameters of the studied aliphatic polyesters. The structural changes in PBS and PBSA explain the observed changes in the physical and mechanical properties of the obtained injection molded samples.
本文描述了各种降解条件对聚丁二酸丁二醇酯（PBS）和聚丁二酸丁二醇酯-己二酸丁二醇酯（PBSA）共聚物在降解过程中分子结构和超分子结构的影响。实验采用注塑样品，并在土壤、堆肥和人工老化等标准化生物降解条件下进行。通过尺寸排阻色谱（SEC）结合多角度激光光散射（MALLS）检测和广角X射线衍射（WAXD）对材料进行了研究。此外，还测定了样品的物理和力学性能。所进行的实验清楚地表明了所选降解条件对所研究的脂肪族聚酯的宏观、超分子和分子参数的不同影响。PBS和PBSA的结构变化解释了所得注塑样品物理和力学性能的观察变化。
