Layer-by-Layer Assembly and Spontaneous Flocculation of Oppositely Charged Oxide and Hydroxide Nanosheets into Inorganic Sandwich Layered Materials

2007 ◽  
Vol 129 (25) ◽  
pp. 8000-8007 ◽  
Author(s):  
Liang Li ◽  
Renzhi Ma ◽  
Yasuo Ebina ◽  
Katsutoshi Fukuda ◽  
Kazunori Takada ◽  
...  
Keyword(s):  
Layered Materials ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Oppositely Charged ◽  
Layer Assembly

Multilayer Films Fabricated from Oppositely Charged Polyphenylene Dendrimers by Electrostatic Layer-by-Layer Assembly

2005 ◽  
Vol 206 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Dong Ha Kim ◽  
Jose Luis Hernandez-Lopez ◽  
Jianyun Liu ◽  
George Mihov ◽  
Linjie Zhi ◽  
...  
Keyword(s):  
Multilayer Films ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Oppositely Charged ◽  
Polyphenylene Dendrimers ◽  
Layer Assembly

Highly Ductile Multilayered Films by Layer-by-Layer Assembly of Oppositely Charged Polyurethanes for Biomedical Applications†

Langmuir ◽  
2009 ◽  
Vol 25 (24) ◽  
pp. 14093-14099 ◽  
Author(s):  
Paul Podsiadlo ◽  
Ming Qin ◽  
Meghan Cuddihy ◽  
Jian Zhu ◽  
Kevin Critchley ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Layer By Layer ◽  
Multilayered Films ◽  
Layer By Layer Assembly ◽  
Oppositely Charged ◽  
Layer Assembly

Facilitated transport enhances spray layer-by-layer assembly of oppositely charged nanoparticles

Soft Matter ◽  
2012 ◽  
Vol 8 (40) ◽  
pp. 10419 ◽  
Author(s):  
William D. Mulhearn ◽  
David D. Kim ◽  
Yile Gu ◽  
Daeyeon Lee
Keyword(s):  
Facilitated Transport ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Charged Nanoparticles ◽  
Oppositely Charged ◽  
Layer Assembly

Complex formation of modified chitosan and carboxymethyl cellulose and its effect on paper properties

TAPPI Journal ◽  
2009 ◽  
Vol 8 (6) ◽  
pp. 29-35 ◽  
Author(s):  
PEDRAM FATEHI ◽  
LIYING QIAN ◽  
RATTANA KITITERAKUN ◽  
THIRASAK RIRKSOMBOON ◽  
HUINING XIAO
Keyword(s):  
Carboxymethyl Cellulose ◽  
Polymer System ◽  
Layer By Layer ◽  
Paper Strength ◽  
Anionic Polymer ◽  
Paper Properties ◽  
Modified Chitosan ◽  
Layer By Layer Assembly ◽  
Polyelectrolyte Titration ◽  
Layer Assembly

The application of an oppositely charged dual polymer system is a promising approach to enhance paper strength. In this work, modified chitosan (MCN), a cationic polymer, and carboxymethyl cellulose (CMC), an anionic polymer, were used sequentially to improve paper strength. The adsorption of MCN on cellulose fibers was analyzed via polyelectrolyte titration. The formation of MCN/CMC complex in water and the deposition of this complex on silicon wafers were investigated by means of atomic force microscope and quasi-elastic light scattering techniques. The results showed that paper strength was enhanced slightly with a layer-by-layer assembly of the polymers. However, if the washing stage, which was required for layer-by-layer assembly, was eliminated, the MCN/CMC complex was deposited on fibers more efficiently, and the paper strength was improved more significantly. The significant improvement was attributed to the extra development of fiber bonding, confirmed further by scanning electron microscope observation of the bonding area of fibers treated with or without washing. However, the brightness of papers was somewhat decreased by the deposition of the complex on fibers. Higher paper strength also was achieved using rapid drying rather than air drying.

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