Cai, Dong; Li, Jinbin; Ma, Zhuang; Gan, Zhanhui; Shao, Yu; Xing, Qian; Tan, Rui; Dong, Xue-Hui published the artcile< Effect of Molecular Architecture and Symmetry on Self-Assembly: A Quantitative Revisit Using Discrete ABA Triblock Copolymers>, Quality Control of 627-27-0, the main research area is architecture symmetry assembly discrete diblock triblock copolymer.
The inherent statistical heterogeneities associated with chain length, composition, and architecture of synthetic block copolymers compromise the quant. interpretation of their self-assembly process. This study scrutinizes the contribution of mol. architecture on phase behaviors using discrete ABA triblock copolymers with precise chem. structure and uniform chain length. A group of discrete triblock copolymers with varying composition and symmetry were modularly synthesized through a combination of iterative growth methods and efficient coupling reactions. The sym. ABA triblock copolymers self-assemble into long-range ordered structures with expanded domain spacings and enhanced phase stability, compared with the diblock counterparts snipped at the middle point. By tuning the relative chain length of two end blocks, the mol. asymmetry reduces the packing frustration, and thus increases the order-to-disorder transition temperature and enlarges the domain sizes. This study would serve as a quant. model system to correlate the exptl. observations with the theor. assessments and to provide quant. understandings for the relationship between mol. architecture and self-assembly.
ACS Macro Letters published new progress about Catalysts, Karstedt’s. 627-27-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H8O, Quality Control of 627-27-0.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts