POM-organic-POSS cocluster: creating a dumbbell-shaped hybrid molecule for programming hierarchical supramolecular nanostructures.
Langmuir
; 29(19): 5714-22, 2013 May 14.
Article
em En
| MEDLINE
| ID: mdl-23590697
ABSTRACT
We report the construction of dumbbell-shaped hybrid molecules for programming their hierarchical supramolecular nanostructures through a synergetic self-assembly. Our first dumbbell-shaped hybrid molecule is a POM-organic-POSS cocluster produced by covalently coupling a POM cluster and a POSS cluster together through an organic tether. Structural analyses demonstrated a highly ordered lamellar morphology with a 4.9 nm periodicity, indicating a strong thermodynamic force driving a nanoscale phase separation of the POM and POSS blocks. The POM clusters were arranged in an orderly fashion within the POM-containing layer with a 1.38 nm periodicity because of fixed shape and size of the cluster. This investigation provides in-depth understanding of how to construct hierarchical supramolecular nanostructures at a nanoscale less than 5 nm by manipulating and controlling the topological shape of hybrid molecules.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos de Tungstênio
/
Compostos de Organossilício
/
Nanoestruturas
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article