Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Studies of a novel polymerizable amphiphilic 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
Titolo Testata:
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
fascicolo: 3, volume: 168, anno: 2000,
pagine: 193 - 205
SICI:
0927-7757(20000831)168:3<193:SOANPA>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
AIR-WATER-INTERFACE; POLY(PROPYLENE IMINE) DENDRIMERS; SHAPED MOLECULES; LANGMUIR FILMS; MONOLAYERS; NANOCLUSTERS; MICELLES;
Keywords:
dendrimer; ESEM; PAMAM; PDA; PDA-PAMAM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Leblanc, RM Univ Miami, Dept Chem, Ctr Supramol Sci, Cox Sci Bldg Room 315,POB 249118,Coral Gables, FL 33124 USA Univ Miami Cox Sci Bldg Room 315,POB249118 Coral Gables FL USA 33124
Citazione:
G.D. Sui et al., "Studies of a novel polymerizable amphiphilic dendrimer", COLL SURF A, 168(3), 2000, pp. 193-205

Abstract

In the present study, we have synthesized a polymerizable amphiphilic dendrimer by attaching 10,12-pentacosadiynoic acid (PDA) to a third generation poly(amidoamine) (PAMAM) dendrimer core (PDA-PAMAM). This dendrimer was characterized by H-1 NMR and MALDI-TOF mass spectroscopy. The amphiphilic property of this dendrimer has been studied. Surface pressure and surface dipole moment-area isotherm measurements have shown that PDA-PAMAM forms a stable monolayer at the air-water interface with a limiting molecular area of 460 Angstrom(2) per molecule. The compressed monolayer can be readily polymerized upon UV irradiation, as like other PDA derivatives. The topography of the monolayer was observed by Brewster angle microscopy (BAM) as well as bythe environmental scanning electron microscopy (ESEM). We found a good correlation between the size and shape of monolayer domains observed with the BAM and ESEM techniques. To our knowledge, this is the first time wet mode ESEM has been used to characterize L-B film. The wet mode ensures that L-B films remain intact without being damaged by the high vacuum system of traditional SEM. As a preliminary study, we have found that this new dendrimer forms colloidal particles in chloroform solution and can be readily polymerized by UV irradiation. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/07/20 alle ore 12:26:25