Supramolecular star polymers. Increased molecular weight with decreased polydispersity through self-assembly

Eric M. Todd, Steven C. Zimmerman

Research output: Contribution to journalArticlepeer-review

108 Scopus citations

Abstract

A ditopic structure containing two heterocyclic DeAP units and programmed to self-assemble is used as an initiation unit for the synthesis of polylactide and polystyrene. The resultant polymers self-assemble into higher molecular weight structures with a lower molecular weight distribution. The largest discrete nanoscale polymeric assembly is proposed to be a hexameric star with a molecular weight of ca. 92.7 kDa. All polymeric assemblies generally exhibit PDI values of 1.3 to 1.5, which are lower than the PDI value of the corresponding polymeric arms. A hexameric assembly is stabilized by 30 hydrogen bonds, including six AADD·DDAA contacts. The hexameric star is formed under conditions that are at least partially controlled by kinetics.

Original languageEnglish
Pages (from-to)14534-14535
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number47
DOIs
StatePublished - 28 Nov 2007
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry

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