Use of polypropyleneimine tetrahexacontaamine (DAB-Am-64) dendrimer as a single-molecule template to produce mesoporous silicas

Gustavo Larsen, Edgar Lotero, Manuel Marquez

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

The use of DAB-Am-64 amine dendrimer as a single-molecule template to produce mesoporous cavities in silica sol-gels is reported. The method is meant to afford the synthesis of spheroidal cavities and is likely to enjoy generality, since there are a number of dendritic molecules commercially available today. X-ray diffraction confirms that a coherent distance of ~25 Å is obtained upon calcination, and the modeling of nitrogen adsorption data by a modified Horvath-Kawazoe formalism for spherical cavities reveals that voids of ~23 Å in diameter had been formed.

Original languageEnglish (US)
Pages (from-to)1513-1515
Number of pages3
JournalChemistry of Materials
Volume12
Issue number6
DOIs
StatePublished - Jun 2000

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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