Layer-by-layer assembly of poly (N-acryloyl-N'-propylpiperazine) and poly (acrylic acid): Effect of pH and temperature

2008 ◽  
Vol 516 (8) ◽  
pp. 2125-2129 ◽  
Author(s):  
Lei Chang ◽  
Xiangxi Kong ◽  
Fang Wang ◽  
Liyan Wang ◽  
Jiacong Shen
Keyword(s):  
Acrylic Acid ◽  
Layer By Layer ◽  
Effect Of Ph ◽  
Layer By Layer Assembly ◽  
Acid Effect ◽  
Layer Assembly ◽  
Poly Acrylic Acid

Dynamics of the layer-by-layer assembly of a poly(acrylic acid)–lanthanide complex colloid and poly(diallyldimethyl ammonium)

Soft Matter ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 867-875 ◽  
Author(s):  
Jiali Xu ◽  
Zhiliang Wang ◽  
Lingang Wen ◽  
Xianju Zhou ◽  
Jian Xu ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Lanthanide Complex ◽  
Layer By Layer ◽  
Layer By Layer Assembly ◽  
Layer Assembly ◽  
Poly Acrylic Acid

PAA–Ln complex particles and PDDA are assembled and fluorescent films are presented.

Layer-by-layer assembly of polyaniline nanofibers/poly(acrylic acid) multilayer film and electrochemical sensing

2009 ◽  
Vol 54 (16) ◽  
pp. 4056-4061 ◽  
Author(s):  
Zhichao Hu ◽  
Jingjing Xu ◽  
Yuan Tian ◽  
Ru Peng ◽  
Yuezhong Xian ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Multilayer Film ◽  
Electrochemical Sensing ◽  
Layer By Layer ◽  
Polyaniline Nanofibers ◽  
Layer By Layer Assembly ◽  
Layer Assembly ◽  
Poly Acrylic Acid

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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