Original data of Correlative characterization of stereocomplex formation in blends of aliphatic polyester P(PCLm-b-PLLAn) block-copolymers and PDLA

Quantifying the relationship between molecular structure and macroscopic properties in phase-separating semicrystalline block copolymers is a complex challenge, yet crucial for their processing and applications in our daily life. Among others, Poly[(ε-caprolactone)-block-(L-lactide)] (P(PCL-b-PLLA) blended with Poly(D-lactide) (PDLA) hold a particular interest due to their mechanical properties. Here, we quantify the relationship between molecular structure and macroscopic properties in this class of copolymers, by combining correlative characterization techniques at different scales. P(PCL-b-PLLA) and PDLA with defined block lengths and molar masses were prepared to elucidate minimum block lengths for crystallization and stereocomplexation (SC), to characterize the size and spatial distribution of crystallites and their impact on physico-chemical properties.*: to whom correspondence should be addressed. Email: [e-mail]

量化相分离半结晶嵌段共聚物的分子结构与宏观性能之间的关联是一项复杂的挑战，但其对该类材料的加工及日常应用至关重要。其中，聚[(ε-己内酯)-block-(L-丙交酯)]（Poly[(ε-caprolactone)-block-(L-lactide)]，缩写为P(PCL-b-PLLA)）与聚(D-丙交酯)（PDLA）共混体系因具备优异的力学性能而备受关注。本研究通过结合多尺度关联表征技术，量化该类嵌段共聚物的分子结构与宏观性能之间的关联。我们制备了具有精确可控嵌段长度与摩尔质量的P(PCL-b-PLLA)与PDLA，用以阐明结晶与立体复合（Stereocomplexation，简称SC）所需的最小嵌段长度，表征微晶的尺寸与空间分布，及其对物理化学性能的影响。*：通讯作者。邮箱：[e-mail]