Counterions in Poly(allylamine hydrochloride) and Poly(styrene sulfonate) Layer-by-Layer Films

Langmuir ◽  
2004 ◽  
Vol 20 (19) ◽  
pp. 8103-8109 ◽  
Author(s):  
João M. C. Lourenço ◽  
Paulo António Ribeiro ◽  
Ana Maria Botelho do Rego ◽  
Francisco M. Braz Fernandes ◽  
Augusto M. C. Moutinho ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate

Encapsulation of photoactive porphyrinoids in polyelectrolyte hollow microcapsules viewed by fluorescence lifetime imaging microscopy (FLIM)

RSC Advances ◽  
2015 ◽  
Vol 5 (96) ◽  
pp. 79050-79060 ◽  
Author(s):  
Raquel Teixeira ◽  
Vanda Vaz Serra ◽  
Pedro M. R. Paulo ◽  
Suzana M. Andrade ◽  
Sílvia M. B. Costa
Keyword(s):  
Fluorescence Lifetime ◽  
Fluorescence Lifetime Imaging Microscopy ◽  
Fluorescence Lifetime Imaging ◽  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Lifetime Imaging ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate

Fluorescence Lifetime Imaging Microscopy (FLIM) was used to investigate the encapsulation of porphyrinoids in multilayer hollow microcapsules assembled layer by layer with poly(styrene sulfonate) (PSS) and poly(allylamine hydrochloride) (PAH).

scholarly journals A poly(allylamine hydrochloride)/poly(styrene sulfonate) microcapsule-coated cotton fabric for stimulus-responsive textiles

RSC Advances ◽  
2020 ◽  
Vol 10 (30) ◽  
pp. 17731-17738
Author(s):  
Zhiqi Zhao ◽  
Qiujin Li ◽  
Jixian Gong ◽  
Zheng Li ◽  
Jianfei Zhang
Keyword(s):  
Cotton Fabric ◽  
Sodium Salt ◽  
Layer By Layer ◽  
Styrene Sulfonate ◽  
Stimulus Responsive ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate ◽  
Coated Cotton

This study reports a stimulus-responsive fabric incorporating a combination of microcapsules, containing polyelectrolytes poly(allylamine hydrochloride) (PAH) and poly(styrene sulfonate) sodium salt (PSS), formed via a layer-by-layer (LBL) approach.

Preparation and Release Behavior of Polyelectrolyte Microcapsules

2012 ◽  
Vol 627 ◽  
pp. 765-769
Author(s):  
Wei Zhang ◽  
Qiu Jin Li ◽  
Ji Xian Gong ◽  
Hui Qin Li ◽  
Jian Fei Zhang ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Release Behavior ◽  
Styrene Sulfonate ◽  
Polyelectrolyte Microcapsules ◽  
Colloidal Crystallization ◽  
Nitrate Tetrahydrate ◽  
Allylamine Hydrochloride ◽  
Poly Styrene Sulfonate ◽  
Oppositely Charged ◽  
Disodium Ethylenediaminetetraacetate

Hybrid calcium carbonate (CaCO3)/poly(styrene sulfonate) (PSS) particle, as a template, was synthesized using colloidal crystallization with the presence of nitrate tetrahydrate (Ca(NO3)2•4H2O), sodium carbonate (Na2CO3) and PSS. Microcapsule was prepared by template-assisted layer-by-layer (LbL) technology in solutions of two oppositely charged polyelectrolytes, poly(styrenesulfonate) (PSS) and poly(allylamine hydrochloride) (PAH) alternately, followed by dissolving the template with disodium ethylenediaminetetraacetate (EDTA). The release behavior of rhodamine B (RhB) from the microcapsules was examined and the rates of release at different pH were studied.

Stabilization of Hydrogen-Bonded Poly(N-isopropylacrylamide) Multilayers by a Dual Electrostatic/Hydrogen Bonding Copolymer

2005 ◽  
Vol 58 (6) ◽  
pp. 442 ◽  
Author(s):  
John F. Quinn ◽  
Frank Caruso
Keyword(s):  
Thin Films ◽  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Ph Stability ◽  
Multilayer Thin Films ◽  
Film Morphology ◽  
Styrene Sulfonate ◽  
Allylamine Hydrochloride ◽  
Multilayer Assemblies ◽  
Poly Styrene Sulfonate

Multilayer thin films were prepared based on hydrogen bonding between poly(N-isopropylacrylamide) (PNiPAAm), and poly(styrene sulfonate-co-maleic acid) (PSSMA). Since PSSMA is capable of associating with other polymers through both hydrogen bonding and electrostatic interactions, multilayer assemblies incorporating PSSMA, PNiPAAm, and intercalated poly(allylamine hydrochloride) (PAH) layers were also prepared. Intercalated PAH layers were included to improve the pH stability of the film by introducing electrostatic linkages into the assembly. Film construction was studied as a function of pH of the deposition solution and the number of inserted PAH layers. Film morphology varied significantly with incorporation of PAH into the film. It was also demonstrated that by intercalating several PAH layers within the PNiPAAm/PSSMA assembly, the pH stability of the films at pH 5.8 could be substantially improved.

Antibacterial textiles functionalized by layer-by-layer assembly of polyelectrolytes and TiO2photocatalyst

RSC Advances ◽  
2015 ◽  
Vol 5 (49) ◽  
pp. 38859-38867 ◽  
Author(s):  
Gaëlle Carré ◽  
Laurent Garnier ◽  
Janina Moeller-Siegert ◽  
Jean-Pierre Gies ◽  
Valérie Keller ◽  
...  
Keyword(s):  
Solar Light ◽  
Layer By Layer ◽  
E Coli ◽  
Styrene Sulfonate ◽  
Layer By Layer Assembly ◽  
Antibacterial Textiles ◽  
Poly Styrene Sulfonate ◽  
Layer Assembly

Antibacterial photocatalytic textiles with high self-decontaminating activity under solar light againstE. colihave been prepared by sprayed layer-by-layer assembly of TiO2and polyethylenimine or polyanionic poly(styrene sulfonate) polyelectrolyte.

scholarly journals Ethanol Measurement Using Hetero-Core Structured Optical Fiber Covered with Layer-By-Layer Thin Film

Foods ◽  
2018 ◽  
Vol 7 (8) ◽  
pp. 117
Author(s):  
Yuko Kimura ◽  
Atsushi Seki ◽  
Kazuhiro Watanabe
Keyword(s):  
Thin Film ◽  
Light Intensity ◽  
Optical Fiber ◽  
Ethanol Concentration ◽  
Water Solution ◽  
Layer By Layer ◽  
Ethanol Sensor ◽  
Styrene Sulfonate ◽  
Poly Styrene Sulfonate ◽  
Layer Thin Film

Ethanol measurements are performed in an ethanol/water solution utilizing an ethanol sensor based on a hetero-core structured optical fiber covered with a layer-by-layer thin film. The layer-by-layer (LbL) thin film was prepared using poly (allylamine hydrochloride) and poly styrene sulfonate. When the sensor was immersed in water, the propagating light intensity decreased with increasing ethanol concentration. This behavior suggested that the LbL film contracted due to the presence of ethanol, and the refractive index of the film increased, resulting in increasing propagating light leaks at the hetero-core of the fiber. The ethanol sensor was applied to a variety of spirits, and the propagating light intensity decreased with increasing ethanol concentration.

Heterojunction of Hydrophobic Poly(1,4-phenylenevinylene) and Hydrophilic PEDOT:PSS on Hydrophilic CdS Nanoparticles

2008 ◽  
Vol 8 (9) ◽  
pp. 4730-4733 ◽  
Author(s):  
Wonjoo Lee ◽  
Su Jin Baek ◽  
Sun Ki Min ◽  
Gangri Cai ◽  
Joong Ki Lee ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Water Soluble ◽  
Cds Nanoparticles ◽  
Layer By Layer ◽  
Deposition Method ◽  
Water Contact ◽  
Styrene Sulfonate ◽  
Layer Deposition ◽  
Poly Styrene Sulfonate ◽  
Positively Charged

Heterojunction of hydrophobic poly(1,4-phenylenevinylene) (PPV) on hydrophilic CdS nanoparticles was successfully prepared by the multi-layering of poly(p-xylene tetrahydrothiophenium chloride) (pre-PPV: precursor of PPV polymer) and poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS) in an aqueous solution followed by a thermal treatment. CdS nanoparticles thin films were prepared on tin-doped indium oxide (ITO) by a chemical-bath-deposition method. The CdS surface was hydrophilic with low water contact angle of 15°. Positively charged and water-soluble pre-PPV was used to form multilayers with PEDOT:PSS by a layer-by-layer deposition method. Pre-PPV is easily converted to conjugated PPV polymer by a thermal treatment. The CdS nanoparticles-(PPV/PEDOT:PSS) multilayer films constitute efficient acceptor-sensitizer dyad systems, which generate a photocurrent of 2,660 nA/cm2 under the air mass (AM) 1.5 conditions (I = 100 mW/cm2) for sample with 4.5 bilayers.

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