Synthesis and surface chemistry study of a new amphiphilic PAMAM dendrimer

Guodong Sui, Miodrag Micic, Qun Huo, Roger Leblanc

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A new disk-shaped amphiphilic dendrimer has been synthesized by attaching sixty-four 12-hydroxy-dodecanoic acid chains to a fourth generation poly(amido amine) (PAMAM) dendrimer core. Surface pressure and surface potential-area isotherm measurements have shown that the dendrimer forms a stable monolayer at the air/water interface with limiting molecular area of 160 angstrom2/molecule. This small area relative to the huge size of the dendrimer suggests that the dendrimer molecules form an edge-on disk-shaped structure at the air/water interface. The topography of the dendrimer monolayer was observed by Brewster angle microscopy (BAM) at air/water interface as well as by environmental scanning electron microscopy (ESEM) as a Langmuir-Blodgett film. The striplike monolayer domains observed from BAM images correspond to the monolayer topography as observed from ESEM images.

Original languageEnglish
Pages (from-to)7847-7851
Number of pages5
JournalLangmuir
Volume16
Issue number20
DOIs
StatePublished - Oct 3 2000

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synthesis (chemistry)
Dendrimers
dendrimers
Surface chemistry
Amines
amines
chemistry
Monolayers
lauric acid
Brewster angle
Topography
Water
air
Microscopic examination
topography
Air
water
microscopy
Scanning electron microscopy
scanning electron microscopy

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

Cite this

Synthesis and surface chemistry study of a new amphiphilic PAMAM dendrimer. / Sui, Guodong; Micic, Miodrag; Huo, Qun; Leblanc, Roger.

In: Langmuir, Vol. 16, No. 20, 03.10.2000, p. 7847-7851.

Research output: Contribution to journalArticle

Sui, Guodong ; Micic, Miodrag ; Huo, Qun ; Leblanc, Roger. / Synthesis and surface chemistry study of a new amphiphilic PAMAM dendrimer. In: Langmuir. 2000 ; Vol. 16, No. 20. pp. 7847-7851.
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