Neutron reflectivity and structure of polyether dendrimers as langmuir films

P. M. Saville, P. A. Reynolds, J. W. White*, C. J. Hawker, J. M.J. Fréchet, K. L. Wooley, J. Penfold, J. R.P. Webster

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

117 Scopus citations


Neutron reflectivity and Π-A isotherm measurements of Langmuir films of polyether dendrimers based on 3,5-dihydroxybenzyl alcohol have elucidated the structure of these interesting molecules at the air-water interface. The neutron reflectivity measurements indicated a collapse of the fourth-generation monodendron, [G-4]-OH, to a bilayer structure. The molecules in the layer next to the water interface were ellipsoidal in structure due to compression and contained a volume fraction of about 25% of the substrate water. The molecules in the layer next to air were spherical with a diameter of 21 Å and contained no water. Isotherm measurements of the monodendron and tridendron series indicated scaling relationships between the area per molecule and the molecular weights of these species.

Original languageEnglish (US)
Pages (from-to)8283-8289
Number of pages7
JournalJournal of Physical Chemistry
Issue number20
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • Physical and Theoretical Chemistry


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