Temperature-Responsive Properties of Poly(acrylic acid-co-acrylamide) Hydrophobic Association Hydrogels with High Mechanical Strength

2010 ◽  
Vol 43 (24) ◽  
pp. 10645-10651 ◽  
Author(s):  
Meng Yang ◽  
Chang Liu ◽  
Zhiying Li ◽  
Ge Gao ◽  
Fengqi Liu
Keyword(s):  
Acrylic Acid ◽  
Mechanical Strength ◽  
Hydrophobic Association ◽  
High Mechanical Strength ◽  
Temperature Responsive ◽  
Poly Acrylic Acid

Light-Responsive Hydrophobic Association of Azobenzene-Modified Poly(acrylic acid) with Neutral Surfactants†

Langmuir ◽  
2007 ◽  
Vol 23 (1) ◽  
pp. 94-104 ◽  
Author(s):  
S. Khoukh ◽  
R. Oda ◽  
Th. Labrot ◽  
P. Perrin ◽  
C. Tribet
Keyword(s):  
Acrylic Acid ◽  
Hydrophobic Association ◽  
Poly Acrylic Acid

Thixotropy of aqueous solution of fluorocarbon-modified poly(acrylic acid)

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Hongqi Hu ◽  
Lin Li ◽  
Mingcai Chen
Keyword(s):  
Aqueous Solution ◽  
Shear Rate ◽  
Acrylic Acid ◽  
Rheological Properties ◽  
Great Increase ◽  
Hydrophobic Association ◽  
Chain Elongation ◽  
Shear Rates ◽  
Viscosity Dependence ◽  
Poly Acrylic Acid

AbstractThe rheological properties of the aqueous solution of 1H,1H,11Hperfluoroundecyl acrylate -modified poly(acrylic acid) were studied. It was found that the solutions show different viscosity dependence on shear time at different pH and shear rates. At lower pH and moderate shear rates, the viscosity of the solutions shows a great increase with time. At pH 5.0 and above, it exhibits thixotropy at any shear rate, i.e., the viscosity decreases with time at constant shear rates. If the shearing stops, the viscosity of the solutions can be recovered to some extent. These phenomena are interpreted to be due to the intermolecular hydrophobic association: the construction of the association leads to an increase of the viscosity, the destroying of the association leads to a decrease of the viscosity. The pH-induced conformational change and the shearing-induced chain elongation jointly influence the intermolecular hydrophobic association.

Facile Fabrication of Poly(Acrylic Acid-Co-Acrylamide) Hydrogel with 4A Molecular Sieve for Removal of Heavy Metal Ions

2015 ◽  
Vol 1092-1093 ◽  
pp. 852-855
Author(s):  
Xiao Dan Lv ◽  
Zheng Yang Wang ◽  
Jian Hui Zhang ◽  
Zi Shu Chen ◽  
Wei Feng Cao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Acrylic Acid ◽  
Mechanical Strength ◽  
Metal Ions ◽  
Molecular Sieve ◽  
Heavy Metal Ions ◽  
High Sorption Capacity ◽  
High Sorption ◽  
Facile Fabrication ◽  
Poly Acrylic Acid

A novel hydrogel was successfully synthesized through doping 4A molecular sieve (4A-MS) into poly (acrylic acid-co-acrylamide) and used for the removal of Cu2+, Ni2+, Cd2+and Pb2+in the solution. The composite hydrogel all exhibited high sorption capacity (SC) and high elution percentage (EP) for the four above heavy metal ions. Simultaneously, the water uptake (WU) of the hydrogel was dramatically decreased and the mechanical strength of the absorbent hydrogel was improved with increasing 4A-MS content.

Construction and Properties of Hydrophobic Association Hydrogels with High Mechanical Strength and Reforming Capability

2009 ◽  
Vol 294 (12) ◽  
pp. 815-820 ◽  
Author(s):  
Guoqing Jiang ◽  
Chang Liu ◽  
Xiaoli Liu ◽  
Guohui Zhang ◽  
Meng Yang ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Hydrophobic Association ◽  
High Mechanical Strength

Swelling Behavior of Hydrophobic Association Hydrogels with High Mechanical Strength

2010 ◽  
Vol 47 (7) ◽  
pp. 663-670 ◽  
Author(s):  
Guoqing Jiang ◽  
Chang Liu ◽  
Xiaoli Liu ◽  
Guohui Zhang ◽  
Meng Yang ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Swelling Behavior ◽  
Hydrophobic Association ◽  
High Mechanical Strength
Sign in / Sign up

Export Citation Format

Share Document