THF-induced stiffening of polyelectrolyte/phosphorus dendrimer multilayer microcapsules

✍ Scribed by Byoung-Suhk Kim; Olga V. Lebedeva; Mi-Kyoung Park; Wolfgang Knoll; Anne-Marie Caminade; Jean-Pierre Majoral; Olga I. Vinogradova

• Book ID: 104088406
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 685 KB
• Volume: 51
• Category: Article
• ISSN: 0032-3861
• DOI: 10.1016/j.polymer.2010.08.005

✦ Synopsis

Polyelectrolyte multilayer microcapsules are important for a variety of potential applications, and represent a convenient system for studying properties of multilayer films. Recent work explored a posttreatment of such capsules by organic solvents, by reporting a softening. Here we show, that an addition of a very small amount of solvent (THF) to the phosphorus [G 3 (NH þ Et 2 Cl À ) 48 ] dendrimer adsorption solution results, in contrast, in a discernible stiffening of (PSS)/phosphorus dendrimer microcapsules, although it does not affect the multilayer thickness. Our results open new possibilities to tune mechanical properties of multilayer films.