Conversion of supramolecular clusters to macromolecular objects

Eugene R. Zubarev, Martin U. Pralle, Leiming Li, Samuel I Stupp

Research output: Contribution to journalArticle

166 Citations (Scopus)

Abstract

In a reaction proceeding within a nanoscopic volume, supramolecular clusters were transformed to polymer objects while retaining their shape and size. Spatial isolation of the cross-linkable blocks of oligobutadiene that were involved in this stitching reaction was achieved by self-assembly of the molecules that made up the clusters. Thermal activation of cross-linking yielded macromolecules (molecular weight of 70,000) with a narrow size distribution that was similar to that of the supramolecular clusters. The macromolecules obtained have an anisotropic shape (2 nanometers by 8 nanometers), as determined by electron microscopy and small-angle x-ray scattering, and form materials that exhibit a liquid crystalline state.

Original languageEnglish
Pages (from-to)523-526
Number of pages4
JournalScience
Volume283
Issue number5401
DOIs
Publication statusPublished - Jan 22 1999

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Macromolecules
Self assembly
Electron microscopy
Polymers
Chemical activation
Molecular weight
Scattering
Crystalline materials
X rays
Molecules
Liquids
Hot Temperature

ASJC Scopus subject areas

  • General

Cite this

Conversion of supramolecular clusters to macromolecular objects. / Zubarev, Eugene R.; Pralle, Martin U.; Li, Leiming; Stupp, Samuel I.

In: Science, Vol. 283, No. 5401, 22.01.1999, p. 523-526.

Research output: Contribution to journalArticle

Zubarev, Eugene R. ; Pralle, Martin U. ; Li, Leiming ; Stupp, Samuel I. / Conversion of supramolecular clusters to macromolecular objects. In: Science. 1999 ; Vol. 283, No. 5401. pp. 523-526.
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