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Titolo:
Synthesis and surface chemistry study of a new amphiphilic PAMAM dendrimer
Autore:
Sui, GD; Micic, M; Huo, Q; Leblanc, RM;
Indirizzi:
Univ Miami, Dept Chem, Ctr Supramol Sci, Coral Gables, FL 33124 USA Univ Miami Coral Gables FL USA 33124 amol Sci, Coral Gables, FL 33124 USA Univ Miami, Dept Chem, Ctr Adv Microscopy, Coral Gables, FL 33124 USA UnivMiami Coral Gables FL USA 33124 croscopy, Coral Gables, FL 33124 USA
Titolo Testata:
LANGMUIR
fascicolo: 20, volume: 16, anno: 2000,
pagine: 7847 - 7851
SICI:
0743-7463(20001003)16:20<7847:SASCSO>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-WATER-INTERFACE; DISCOTIC LIQUID-CRYSTALS; LANGMUIR-BLODGETT-FILMS; SHAPED MOLECULES; MONOLAYERS; MICROSCOPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Leblanc, RM Univ Miami, Dept Chem, Ctr Supramol Sci, 1301 Mem Dr, Coral Gables, FL 33124 USA Univ Miami 1301 Mem Dr Coral Gables FL USA 33124 FL 33124 USA
Citazione:
G.D. Sui et al., "Synthesis and surface chemistry study of a new amphiphilic PAMAM dendrimer", LANGMUIR, 16(20), 2000, pp. 7847-7851

Abstract

A new disk-shaped amphiphilic dendrimer has been synthesized by attaching sixty-four 12-hydroxydodecanoic 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 Angstrom(2)/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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 22:07:41