Influence of Drying Time of Polyelectrolyte Multilayers on the Compression-Induced Pattern Formation
作者： Xiao Gong , Jie Yang , Lulu Han , Changyou Gao
DOI: 10.1021/LA802957R
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摘要: Compression of the polyelectrolyte multilayers has been found previously when they were pressed by a poly(dimethylsiloxane) (PDMS) stamp under small pressure (Macromolecules 2004, 37, 8836). In this work, we further that pattern formation poly(diallyldimethylammonium chloride) (PDADMAC) containing is dependent on drying time prior to compression. After poly(4-styrenesulfonic acid-co-maleic acid) sodium salt (PSSMA)/PDADMAC dried at 70% relative humidity and room temperature for 2, 6, 12 h, compression PDMS with linear patterns obtained double strips, high ridges multilayers, respectively. These phenomena independent layer number concentration could be applied other PDADMAC multilayer systems such as poly(styrene sulfonate) (PSS)/PDADMAC poly(acrylic acid, salt) (PAA)/PDADMAC. A model was suggested depict the...
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