Concentration Insensitive Supramolecular Polymerization Enabled by Kinetically Interlocking Multiple Units Strategy

Jiezhong Shi

doi:10.31635/ccschem.019.20190009

Concentration Insensitive Supramolecular Polymerization Enabled by Kinetically Interlocking Multiple Units Strategy

2019-08-01

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刘冬生 (Dongsheng Liu) *

DOI：10.31635/ccschem.019.20190009

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We proposed and demonstrated a kinetically interlocking multiple-units supramolecular polymerization strategy. Through rationally designed multiple-units monomers, the degree of polymerization (X-w) detected was more than 50 with a polydispersity index of similar to 1.4. The prepared polymers were stable when diluted to 20 mu M or lower concentrations. By introducing the cooperative effects of multi-unit interactions into a traditional condensation polymerization model, we found that the relationship between the concentration and the X-w was heavily influenced by the unit number involved in the kinetic interlocking. Factors that influenced the X-w and their distributions were studied systematically, and all the results matched the theoretical predictions excellently. This strategy provides novel insight into supramolecular polymerization and offers a simple but effective way to improve positive correlation of the reversibility and stability of supramolecular interactions in polymer assembly. [GRAPHICS] .

Keyword:

DNA

supramolecular polymerization

kinetically interlocking multiple units

concentration insensitive

Concentration Insensitive Supramolecular Polymerization Enabled by Kinetically Interlocking Multiple Units Strategy

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