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Continuous flow reactors were used to improve production efficiency and reduce batch-to-batch scale-up variation. The study demonstrates living CDSA in flow, using epitaxial growth to evaluate effects of temperature, residence time, and flow rate. 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limitation of living CDSA limits its commercial scalability?","Question",{"text":63,"@type":64},"Living CDSA is constrained by batch preparation, where scale-up slows unimer diffusion and the rapid crystallization increases size dispersity, limiting use to small-scale and dilute solutions.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"Why do flow reactors help improve production efficiency?",{"text":68,"@type":64},"Flow reactors maintain consistent reaction parameters and provide improved heat transfer and mixing through their high surface-area-to-volume ratio, enabling safer, more homogeneous reactions and reducing batch-to-batch variability.",{"name":70,"@type":61,"acceptedAnswer":71},"What did the study demonstrate about living CDSA in a continuous flow system?",{"text":72,"@type":64},"It established a continuous flow system and showed epitaxial growth of platelets in flow, then used seeds to perform living CDSA, enabling flow-rate tuning to obtain size-controllable, 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Letter   \nEnhancing the Scalability of Crystallization-Driven Self-Assembly Using Flow Reactors  \nLaihui Xiao, Sam J. Parkinson, Tianlai Xia, Phillippa Edge, and Rachel K. O’Reilly*  \n Cite This: ACS Macro Lett. 2023, 12, 1636−1641  \nRead Online  \n\n| ACCESS |  Metrics & More |  Article Recommendations | *sı Supporting Information |\n| --- | --- | --- | --- |\n\nDownloaded via 3 1.127.163.96 on November 8, 2024 at 13:36:26 (UTC) . See [https://pubs.acs.org/sharingguidelines](https://pubs.acs.org/sharingguidelines) for options on how to legitimately share published articles.  \nABSTRACT: Anisotropic materials have garnered significant attention due to their potential applications in cargo delivery, surface modification, and composite reinforcement. Crystallizationdriven self-assembly (CDSA) is a practical way to access anisotropic structures, such as 2D platelets. Living CDSA, where platelets are formed by using seed particles, allows the platelet size to be well controlled. Nonetheless, the current method of platelet preparation is restricted to low concentrations and small scales, resulting in inefficient production, which hampers its potential for commercial applications. To address this limitation, continuous flow reactors were employed to improve the production efficiency. Flow platforms ensure consistent product quality by maintaining the same parameters throughout the process, circumventing batch  \nto-batch variations and discrepancies observed during scale-up. In this study, we present the first demonstration of living CDSA performed within flow reactors. A continuous flow system was established, and the epitaxial growth of platelets was initially conducted to study the influence of flow parameters such as temperature, residence time, and flow rate on the morphology of platelets. Comparison of different epitaxial growth manners of seeds and platelets was made when using seeds to perform living CDSA. Size-controllable platelets from seeds can be obtained from a series flow system by easily tuning flow rates. Additionally, uniform platelets were continuously collected, exhibiting improved size and dispersity compared to those obtained in batch reactions.  \nTwo-Dimensional (2D) polymeric platelets are gaining great attention because of their diverse range of applications. 1−3 Specifically, 2D platelets with high aspect ratios have attracted significant interest due to their exceptional properties in cargo delivery,4,5 surface modification6 and composite reinforcement.7 Compared to traditional self-assembly, by which pure platelets cannot be generally obtained, crystallization-driven self-assembly (CDSA) can easily access this morphology. Furthermore, using a seeded growth method, known as living CDSA, precise control over the size of the platelets can be achieved by adjusting the amount of unimer added to the seed solution. Several studies have reported successful preparation of platelets using semicrystalline block copolymers such as polyferrocenylsilane (PFS),8−10 polycaprolactone (PCL),5, 11, 12 and polylactide (PLLA).6,7, 13 While these advancements have made platelet synthesis more accessible, scaling up the production remains challenging, as increasing the scale means slower diffusion of unimer and due to the rapid rate of crystallization this leads to an increase in size dispersity. Thus, the rapid crystallization rate associated with living CDSA limits its application to small-scale and dilute solutions (\u003C1 wt % solids) . 14, 15 Undoubtedly, this limitation hinders its potential for widespread commercial use.  \nFlow chemistry, where reactions are carried out in a continuous stream, is seeing significant uptake because of its universality for chemistry.16, 17 Flow reactors provide advantages in terms of efficiency, safety, and scalability.18, 19 Batch scale-up often suffers from poor reproducibility due to inadequate heat ","cbCaiiqqHf8mrIvR","https://ap.wps.com/l/cbCaiiqqHf8mrIvR","pdf",5084459,"English","# Abstract\n# Introduction and motivation\n## Applications of 2D polymeric platelets\n## Limits of living CDSA in batch\n## Advantages of flow chemistry and flow reactors\n# Previous work on polymer self-assembly in flow\n# Study approach and system design","[{\"question\":\"What limitation of living CDSA limits its commercial scalability?\",\"answer\":\"Living CDSA is constrained by batch preparation, where scale-up slows unimer diffusion and the rapid crystallization increases size dispersity, limiting use to small-scale and dilute solutions.\"},{\"question\":\"Why do flow reactors help improve production efficiency?\",\"answer\":\"Flow reactors maintain consistent reaction parameters and provide improved heat transfer and mixing through their high surface-area-to-volume ratio, enabling safer, more homogeneous reactions and reducing batch-to-batch variability.\"},{\"question\":\"What did the study demonstrate about living CDSA in a continuous flow system?\",\"answer\":\"It established a continuous flow system and showed epitaxial growth of platelets in flow, then used seeds to perform living CDSA, enabling flow-rate tuning to obtain size-controllable, uniformly collected platelets with improved size and dispersity compared with batch reactions.\"}]","Enhancing the Scalability of Crystallization-Driven Self-Assembly Using Flow Reactors - Letter | PDF",1790000797,15]