Effect of UV−Irradiation on Polyelectrolyte Multilayered Films and Hollow Capsules Prepared by Layer-by-Layer Assembly

2006 ◽  
Vol 39 (23) ◽  
pp. 8067-8074 ◽  
Author(s):  
Kiyofumi Katagiri ◽  
Atsunori Matsuda ◽  
Frank Caruso
Keyword(s):  
Uv Irradiation ◽  
Layer By Layer ◽  
Multilayered Films ◽  
Layer By Layer Assembly ◽  
Layer Assembly

Controlling the growth behaviour of multilayered films via layer-by-layer assembly with multiple interactions

2009 ◽  
Vol 11 (39) ◽  
pp. 8835 ◽  
Author(s):  
Cao Li ◽  
Jing Zhang ◽  
Shuo Yang ◽  
Bo-Lan Li ◽  
Yong-Yong Li ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Growth Behaviour ◽  
Multilayered Films ◽  
Layer By Layer Assembly ◽  
Multiple Interactions ◽  
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

Hybrid layer-by-layer assembly based on animal and vegetable structural materials: multilayered films of collagen and cellulose nanowhiskers

Soft Matter ◽  
2011 ◽  
Vol 7 (9) ◽  
pp. 4405 ◽  
Author(s):  
João P. de Mesquita ◽  
Patrícia S. Patrício ◽  
Claudio L. Donnici ◽  
Denise F. S. Petri ◽  
Luiz Carlos A. de Oliveira ◽  
...  
Keyword(s):  
Structural Materials ◽  
Layer By Layer ◽  
Cellulose Nanowhiskers ◽  
Hybrid Layer ◽  
Multilayered Films ◽  
Layer By Layer Assembly ◽  
Layer Assembly

Terbiumpolyoxotungstate Anions as Building Units to Fabricate Nanostructured Films

2006 ◽  
Vol 514-516 ◽  
pp. 1135-1139 ◽  
Author(s):  
Filipa L. Sousa ◽  
Paula C.R. Soares-Santos ◽  
Helena I.S. Nogueira ◽  
Rute A. Sá Ferreira ◽  
Ana M.V. Cavaleiro ◽  
...  
Keyword(s):  
Optical Properties ◽  
Comparative Study ◽  
Layer By Layer ◽  
Multilayered Films ◽  
Nanostructured Films ◽  
Assembly Method ◽  
Layer By Layer Assembly ◽  
Different Types ◽  
Allylamine Hydrochloride ◽  
Layer Assembly

A layer-by-layer assembly method was employed to fabricate multilayered films containing the terbium heteropolyanions K6[Tb(BW11O39)(H2O)3]·32H2O and Ky[Tb(XW11O39)2]·nH2O (X = Si and P) and the polyelectrolytes poly(4-styrenesulfonate) and poly(allylamine hydrochloride). A comparative study on the optical properties of the films containing distinct polyoxometalates and different types of multilayers was carried out. The photoluminescence of the solid polyoxometalates and of the resulting films was investigated.

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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