Polycaps: reversibly formed polymeric capsules.
basic_science · Level V
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- Record sourced from PubMed, PMID 11038556.
- Also identified by PMC identifier 23767.
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Abstract
Described are assemblies consisting of polymeric capsules, "polycaps," formed from two calix[4]arene tetraureas covalently connected at their lower rims. In these structures self-assembly leads to reversibly formed capsule sites along a chain, reminiscent of beads on a string. Their dynamic behavior is characterized by 1H NMR spectroscopy through encapsulation of guest species, reversible polymerization, and the formation of sharply defined hybrid capsules.