Exploration of carboxymethyl guargum grafted hyperbranched poly(acrylic acid) as a scaffold for silver nanoparticles for ultrafast and selective sensing of Hg(ii)

2017 ◽  
Vol 41 (23) ◽  
pp. 14379-14389 ◽  
Author(s):  
Tamalika Das ◽  
Srijoni Sengupta ◽  
Ayan Dey ◽  
Abhijit Pal ◽  
Suparna Saha ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acrylic Acid ◽  
Hyperbranched Poly ◽  
Poly Acrylic Acid

A sensor for Hg2+ was developed from a system of silver nanoparticles stabilized by polysaccharide grafted hyperbranched poly(acrylic acid).

scholarly journals Direct Synthesis of Hyperbranched Poly(acrylic acid-co-3-hydroxypropionate)

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Efkan Çatıker ◽  
Tahsin Filik
Keyword(s):  
Acrylic Acid ◽  
Hydrogen Transfer ◽  
Direct Synthesis ◽  
Bulk Polymerization ◽  
Swelling Behavior ◽  
Raw Material ◽  
Hyperbranched Poly ◽  
Wide Ph Range ◽  
Ph Range ◽  
Poly Acrylic Acid

Hyperbranched poly(acrylic acid-co-3-hydroxypropionate) (PAcHP) was synthesized by base-catalyzed hydrogen transfer polymerization of acrylic acid through one step. The copolymers obtained through solution and bulk polymerization were insoluble in water and all organic solvents tried. Structural and compositional characterizations of hyperbranched PAcHP were performed by using FTIR, solid13C-NMR, TGA, and titrimetric analysis. Acrylate fraction of the hyperbranched PAcHP obtained via bulk polymerization was determined as 60–65% by comparing TGA curves of hyperbranched PAcHP and pure poly(3-hydroxy propionate) (PHP). However, analytical titration of the same sample revealed that acrylic acid units were about 47.3%. The results obtained from TGA and analytical titration were used to evaluate the chemical structure of the copolymer. Hyperbranched PAcHP exhibited hydrogel properties. Swelling behavior of the copolymer was investigated at a wide pH range and ionic strength. The dynamic swelling profiles of hyperbranched PAcHP exhibited a fast swelling behavior in the first hour and achieved the equilibrium state within 12 h in PBS. Depending on the conditions, the copolymers exhibited swelling ratios up to 2100%. As the copolymer has easily biodegradable propionate and versatile functional acrylic acid units, it can be used as not only biodegradable material in medical applications but also raw material in personal care commodities.

Ultrathin, Hyperbranched Poly(acrylic acid) Membranes on Porous Alumina Supports

2000 ◽  
Vol 122 (47) ◽  
pp. 11670-11678 ◽  
Author(s):  
Milind Nagale ◽  
Bo Young Kim ◽  
Merlin L. Bruening
Keyword(s):  
Acrylic Acid ◽  
Porous Alumina ◽  
Hyperbranched Poly ◽  
Alumina Supports ◽  
Poly Acrylic Acid

Growth of silver nanoparticles on poly(acrylic acid) brushes and their properties

2016 ◽  
Vol 74 (2) ◽  
pp. 505-516 ◽  
Author(s):  
Liang Li ◽  
Yumin Da ◽  
Shu Ying ◽  
Weiqian Zheng ◽  
Xiaoya Zhang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Acrylic Acid ◽  
Poly Acrylic Acid

scholarly journals The effect of hyperbranched poly(acrylic acid)s on the morphology and size of precipitated nanoscale (fluor)hydroxyapatite

2017 ◽  
Vol 5 (30) ◽  
pp. 6027-6033 ◽  
Author(s):  
Laura Shallcross ◽  
Kevin Roche ◽  
Caroline J. Wilcock ◽  
Kenneth T. Stanton ◽  
Thomas Swift ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Hyperbranched Poly ◽  
Poly Acrylic Acid

Hydroxyapatite and fluorhydroxyapatite (F)HA nanoparticles were synthesised in the presence of branched poly(acrylic acid)s and compared to those synthesised in the presence of linear PAA.

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