Journal
ACS MACRO LETTERS
Volume 10, Issue 5, Pages 603-608Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.1c00156
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Funding
- Natural Science Foundation of Beijing Municipality [2202024]
- National Natural Science Foundation of China [51472018]
- Fundamental Research Funds for the Central Universities
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This study demonstrates the preparation of polymer particles with inverse bicontinuous structures using polymerization-induced self-assembly (PISA) method against intramolecularly folded single-chain nanoparticles (SCNPs), paving the way for large-scale production of polymer particles with unique structures.
Polymer particles with inverse bicontinuous structures have attracted considerable attention due to their diverse applications. The conventional generation requires controlling numerous key parameters under strict conditions, such as solvent property, polymer composition, and architecture. In order to improve the preparation efficiency within a broad window, we employed a method by polymerization-induced self-assembly (PISA) against intramolecularly folded single-chain nanoparticles (SCNPs). The SCNPs bear an active site for further polymerization. The SCNPs with smaller sizes facilitate easier controlling of the packing parameter above unity to meet the requirement of the unique structures. The concept is demonstrated by forming the inverse bicontinuous structure through PISA in ethanol against two SCNPs of P4VP(SCNPx%)(35)-CTA and P(PEGMA(20)-co-TMSPMA(4))(SCNP16.7%)-CTA. The unique structure is easily achieved when growing a relatively shorter polymer chain within a broad window. The work paves the avenue to prepare polymer particles with the unique structure in large scale, and other functional materials are expected by using the functional SCNPs or favorable growth of desired materials within the particles.
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