Electrospinning polyelectrolyte complexes: pH-responsive fibers

Soft Matter ◽  
2015 ◽  
Vol 11 (9) ◽  
pp. 1739-1747 ◽  
Author(s):  
Mor Boas ◽  
Arkadiusz Gradys ◽  
Gleb Vasilyev ◽  
Michael Burman ◽  
Eyal Zussman
Keyword(s):  
Acrylic Acid ◽  
Ph Responsive ◽  
Polyelectrolyte Complexes ◽  
Responsive Behavior ◽  
Allylamine Hydrochloride ◽  
Oppositely Charged ◽  
Poly Acrylic Acid

Fibers were electrospun from a solution comprised of oppositely charged polyelectrolytes, poly(acrylic acid) and poly(allylamine hydrochloride), in efforts to achieve highly confined macromolecular packaging featuring reversible responsive behavior under pH stimuli.

scholarly journals Emulsion stabilisation by complexes of oppositely charged synthetic polyelectrolytes

Soft Matter ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 239-254 ◽  
Author(s):  
Ana Maria Bago Rodriguez ◽  
Bernard P. Binks ◽  
Tomoko Sekine
Keyword(s):  
Acrylic Acid ◽  
Sodium Salt ◽  
Cationic Polyelectrolyte ◽  
Polyelectrolyte Complexes ◽  
Diallyldimethylammonium Chloride ◽  
Acid Sodium Salt ◽  
Oil Water ◽  
Oppositely Charged ◽  
Poly Acrylic Acid

We investigate the possibility of stabilising oil–water emulsions from the polyelectrolyte complexes (PEC) obtained in mixtures of a strong cationic polyelectrolyte (poly(diallyldimethylammonium chloride), PDADMAC) and a weak anionic one (poly(acrylic acid)sodium salt, PAANa).

scholarly journals Design of a pH-responsive Conductive Nanocomposite Based on MWCNTs Stabilized in Water by Amphiphilic Block Copolymers

2019 ◽  
Author(s):  
Frank den Hoed ◽  
Andrea Pucci ◽  
Francesco Picchioni ◽  
Patrizio Raffa
Keyword(s):  
Electrical Conductivity ◽  
Block Copolymers ◽  
Acrylic Acid ◽  
Zeta Potential ◽  
Amphiphilic Block Copolymers ◽  
Ph Responsive ◽  
Sensing Applications ◽  
Responsive Behavior ◽  
Ph Variations ◽  
Poly Acrylic Acid

Homogeneous water dispersions of MWCNTs were prepared by ultrasonication in the presence of an amphiphilic polystyrene-block-poly(acrylic acid) (PS-b-PAA) copolymer. The ability of PS-b-PAA to disperse and stabilize MWCTNs was investigated by UV-vis, SEM and zeta potential. It is shown that the copolymer can disperse nanotubes directly by sonication in water. The results show that the addition of a styrene block to PAA enhances the dispersion efficiency compared to pure PAA, possibly due to the nanotube affinity with the polystyrene moiety. Notably, the dispersions show an evident pH-responsive behavior, being MWCNTs reaggregation promoted in basic environment. Furthermore, composites obtained by drop casting display electrical conductivity responsive to pH variations, showing the potential of such materials for sensing applications.

Dendritic magnetite decorated by pH-responsive PEGylated starch: a smart multifunctional nanocarrier for the triggered release of anti-cancer drugs

RSC Advances ◽  
2015 ◽  
Vol 5 (60) ◽  
pp. 48586-48595 ◽  
Author(s):  
Ali Pourjavadi ◽  
Zahra Mazaheri Tehrani ◽  
Seyed Hassan Hosseini
Keyword(s):  
Acrylic Acid ◽  
Cancer Drugs ◽  
Ph Responsive ◽  
Triggered Release ◽  
Anti Cancer ◽  
Poly Acrylic Acid

In the present study, we designed a pH-responsive drug nanocarrier based on polyamidoamine-modified Fe3O4 nanoparticles coated by PEGylated starch-co-poly(acrylic acid).

Photocatalytic Nanostructured Self-Assembled Poly(allylamine hydrochloride)/Poly(acrylic acid) Polyelectrolyte Films Containing Titanium Dioxide–Gold Nanoparticles for Hydrogen Generation

2013 ◽  
Vol 117 (44) ◽  
pp. 23235-23243 ◽  
Author(s):  
Nicolle Dal’Acqua ◽  
Francine Ramos Scheffer ◽  
Rosiana Boniatti ◽  
Barbara Virgínia Mendonça da Silva ◽  
Janaina Viana de Melo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Titanium Dioxide ◽  
Acrylic Acid ◽  
Hydrogen Generation ◽  
Allylamine Hydrochloride ◽  
Self Assembled ◽  
Poly Acrylic Acid
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