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Inspired by the bottom‐up assembly in nature, an artificial self‐assembly pattern is introduced into 3D‐fused deposition modeling (FDM) printing to achieve additive manufacturing on the macroscopic scale. Thermally activated polymerization of thioctic acid (TA) enabled the bulk construction of poly(TA), and yielded unique time‐dependent self‐assembly. Freshly prepared poly(TA) can spontaneously and continuously transfer into higher‐molecular‐weight species and low‐molecular‐weight TA monomers. Poly(TA) and the newly formed TA further assembled into self‐reinforcing materials via microscopic‐phase separation. Bottom‐up self‐assembly patterns on different scales are fully realized by 3D FDM printing of poly(TA): thermally induced polymerization of TA (microscopic‐scale assembly) to poly(TA) and 3D printing (macroscopic‐scale assembly) of poly(TA) are simultaneously achieved in the 3D‐printing process; after 3D printing, the poly(TA) modes show mechanically enhanced features over time, arising from the microscopic self‐assembly of poly(TA) and TA. This study clearly demonstrates that micro‐ and macroscopic bottom‐up self‐assembly can be applied in 3D additive manufacturing. [ABSTRACT FROM AUTHOR]

Application of new strategies for supramolecular self‐assembly can significantly impact the properties and/or functions of supramolecular polymers. To realize a facial strategy for the development of solvent‐free supramolecular polymers in bulk, "deep eutectic solvents" were employed. Cyclodextrins and natural acids were used to prepare deep eutectic supramolecular polymers (DESPs). Deep eutectic solvents have special characteristics that endow DESPs with unique macroscopic properties and excellent processability. DESPs exhibit supramolecular adhesion and temperature‐dependent behavior originating from the combined effects of deep eutectic solvents and supramolecular polymerization. Because DESPs are solvent‐free and display interesting macroscopic properties, they have potential as new adaptive materials. [ABSTRACT FROM AUTHOR]

Abstract: BACKGROUND: The aqueous two‐phase extraction (ATPE) based on organic solvent and inorganic salt was considered a promising method in the extraction, enrichment, and purification field. Ionic liquids (ILs) used as additives to the aqueous two‐phase system (ATPS) can improve the extraction yield. RESULTS: In this study, seven ILs were added to the ethanol/ammonium sulfate ATPS and used for the salting‐out extraction (SOE) of sinomenine from Sinomenium acutum. The IL [C2OHmim]FeCl4 was screened as the optimal additive, then the influencing factors IL amount, ethanol concentration, salt concentration, and temperature were investigated. The maximum extraction efficiency of 96.4% was obtained under the following conditions: 23.06 wt% ethanol concentration, 27.28 wt% (NH4)2SO4 concentration, 4.0 wt% [C2OHmim]FeCl4 and 40°C temperature. Moreover, the components in the SOE system can be recycled after extraction. CONCLUSION: Thus, this ATPS had lower cost and higher extraction ability, and it is feasible to scale up using a small amount of ILs. This system can also be used in the extraction of some other important active compounds from natural plant resources. © 2017 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Keywords: deep eutectic solvents; materials science; polymers; self-assembly; supramolecular chemistry EN deep eutectic solvents materials science polymers self-assembly supramolecular chemistry 5600 5600 1 03/03/21 20210308 NES 210308 In this Communication, the description of a preparation method was unclear and misleading. Deep eutectic solvents, materials science, polymers, self-assembly, supramolecular chemistry In the left column on page 11872, the sentence "Deep eutectic supramolecular polymers ( B DESP b s) based on cyclodextrins were prepared by simply heating the mixtures of cyclodextrins and natural acids" should be amended to read "Deep eutectic supramolecular polymers ( B DESP b s) based on cyclodextrins were prepared by simply heating the aqueous solutions of cyclodextrins and acids. [Extracted from the article]

Keywords: deep eutectic solvents; materials science; polymers; self-assembly; supramolecular chemistry EN deep eutectic solvents materials science polymers self-assembly supramolecular chemistry 5660 5660 1 03/03/21 20210308 NES 210308 In this Communication, the description of a preparation method was unclear and misleading. In the left column on page 11970, the sentence "Deep eutectic supramolecular polymers ( B DESP b s) based on cyclodextrins were prepared by simply heating the mixtures of cyclodextrins and natural acids" should be amended to read "Deep eutectic supramolecular polymers ( B DESP b s) based on cyclodextrins were prepared by simply heating the aqueous solutions of cyclodextrins and acids. Materials science, polymers, self-assembly, supramolecular chemistry, deep eutectic solvents. [Extracted from the article]