Preparation and characterization of dendrimer layers on poly(dimethylsiloxane)films

Title
Preparation and characterization of dendrimer layers on poly(dimethylsiloxane)films
Authors
차봉준강용수원종옥
Issue Date
2001-11
Publisher
Macromolecules
Citation
VOL 34, NO 19, 6631-6636
Abstract
Thin organic layers of polyamidoamine (PAMAM) dendrimers on poly(dimethylsiloxane) (PDMS) films were prepared, and their transport properties were evaluated. The surface of the PDMS film was plasma-modified either in air or in maleic anhydride (MAH) vapor. In the case of the MAHplasma- treated surface, the majority of anhydride groups were maintained during the plasma treatment. Stable dendrimer layers were deposited by simple loading of amine-terminated PAMAM dendrimer solutions on the air-plasma-treated PDMS film to make PDMS-dendrimer membranes and were formed by reacting amine groups of the PAMAM dendrimers with anhydride groups on the MAH-plasma-treated surface to prepare PDMS-anhydride-dendrimer composite membranes. The dendrimer layers were characterized using XPS, ATR FT-IR spectrometry, and contact-angle and gas permeance measurements. Both PDMS-anhydride and PDMS-anhydride-dendrimer composite films showed facilitated transport of propylene when coordinated with silver salts. The propylene permeance and ideal separation factor over propane were 34 GPU and 340, respectively, at high silver loading.
URI
http://pubs.kist.re.kr/handle/201004/16786
ISSN
0024-9297
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KIST Publication > Article
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