Xiaowei Wang, Jiayi Zhang, Jiajun Qu, Jun Li, Anchao Feng, Jun Liu
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Self-assembly Strategies Driven by Supramolecular RAFT Polymerization: Pseudorotaxanes and Nanosheets
This study explores the use of supramolecular RAFT polymerization for the efficient synthesis of pseudorotaxanes and functional nanosheets through the host-guest interaction between β-cyclodextrin (β-CD) and the chain transfer agent (CTA) S,S’-bis(α,α’-dimethylacetic acid) trithiocarbonate (BDAAT). The formation of the β-CD@BDAAT complex significantly improves the water solubility of the CTA, thereby increasing the polymerization rate for N,N-dimethylacrylamide (DMA) and generating well-defined pseudorotaxane structure. In the process of aqueous polymerization-induced self-assembly (PISA), this supramolecular approach enables the rapid fabrication of functional nanosheets, reducing the required time from one week to just 5 h. The non-covalent support provided by β-CD is crucial for stabilizing the layered nanosheet assembly, while host-guest competition experiments also demonstrate the tunability of the morphology of non-covalently assembled structures. This study highlights the versatility of supramolecular RAFT polymerization, offering a promising strategy for the rapid and efficient production of complex nanostructures in aqueous media.
期刊介绍:
The Chinese Journal of Chemistry is an international forum for peer-reviewed original research results in all fields of chemistry. Founded in 1983 under the name Acta Chimica Sinica English Edition and renamed in 1990 as Chinese Journal of Chemistry, the journal publishes a stimulating mixture of Accounts, Full Papers, Notes and Communications in English.