Polymer hydrogels of 2-hydroxyethyl acrylate and acrylic acid obtained by frontal polymerization

2012 ◽  
Vol 50 (8) ◽  
pp. 1515-1520 ◽  
Author(s):  
Roberta Sanna ◽  
Valeria Alzari ◽  
Daniele Nuvoli ◽  
Sergio Scognamillo ◽  
Salvatore Marceddu ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Frontal Polymerization ◽  
Polymer Hydrogels

scholarly journals Frontal Polymerization in Acrylic Acid System

2011 ◽  
Vol 8 (1) ◽  
pp. 75-82
Author(s):  
P. K. Srivastava ◽  
S. S. Majhi ◽  
B. K. Sarkar
Keyword(s):  
Acrylic Acid ◽  
Benzoyl Peroxide ◽  
Reaction Temperature ◽  
Test Tube ◽  
Frontal Polymerization ◽  
Initial Reaction ◽  
Initial Concentration ◽  
Maximum Value ◽  
Front Position ◽  
Initial Starting

Moving wave front have been investigated in acrylic acid / benzoyl peroxide / N, N-dimethyl aniline system in a test tube at 30oC temperature. Dependence of front velocity on initial concentration of benzoyl peroxide, and effect of hydroquinone was determined. Consumption of acrylic acid and benzoyl peroxide have been found to decrease exponentially with respect to front position. The variation of reaction temperature with respect to front position at different initial concentration of benzoyl peroxide and different initial starting temperature have been investigated. It has been established that the reaction temperature increases and attains a maximum value by increasing both benzoyl peroxide and initial reaction temperature. The rate of polyacrylic acid chain propagation has been determined.

Available Plasma-Ignited Frontal Polymerization Approach toward Facile Fabrication of Functional Polymer Hydrogels

2010 ◽  
Vol 22 (19) ◽  
pp. 5653-5659 ◽  
Author(s):  
Jin Zhou ◽  
Huan Shao ◽  
Jun Tu ◽  
Yuan Fang ◽  
Xin Guo ◽  
...  
Keyword(s):  
Frontal Polymerization ◽  
Functional Polymer ◽  
Polymer Hydrogels ◽  
Facile Fabrication

scholarly journals Swelling performance of sodium polyacrylate and poly(acrylamide-co-acrylic acid) potassium salt

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Ruissein Mahon ◽  
Yakubu Balogun ◽  
Gbenga Oluyemi ◽  
James Njuguna
Keyword(s):  
Acrylic Acid ◽  
Potassium Salt ◽  
Gravimetric Analysis ◽  
Superabsorbent Polymer ◽  
Sodium Polyacrylate ◽  
Polymer Hydrogels ◽  
Study Results ◽  
Wide Range ◽  
Time Periods ◽  
Poly Acrylamide

Abstract The application of superabsorbent polymer hydrogels in the oil and gas industry for reservoir and well management is gaining more traction. In this study, the swelling performance and adsorption kinetics of two commercial superabsorbent polymer hydrogels—poly(acrylamide-co-acrylic acid) potassium salt and sodium polyacrylate—were evaluated based upon their stimuli response to pH and salinity at varying temperature and reaction time periods. Characterisation and evaluation of the materials were performed using analytical techniques—optical microscopy, scanning electron microscopy, thermal gravimetric analysis and the gravimetric method. Experimental results show that reaction conditions strongly influence the swelling performance of the superabsorbent polymer hydrogels considered in this study. Generally, increasing pH and salinity concentration led to a significant decline in the swelling performance of both superabsorbent polymer hydrogels. An optimal temperature range between 50 and 75 °C was considered appropriate based on swell tests performed between 25 c to 100 °C over 2-, 4- and 6-h time periods. These findings serve as a guideline for field engineers in the use of superabsorbent polymer hydrogels for a wide range of oilfield applications. The study results provide evidence that the two superabsorbent polymer hydrogels can be used for petroleum fraction-saline water emulsions separation, reservoir zonal isolation, water shutoff and cement plugging applications. Graphic abstract

Rapid synthesis of macroporous graphene oxide/poly(acrylic acid-co-acrylamide) nanocomposite hydrogels with pH-sensitive behavior by frontal polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (40) ◽  
pp. 33426-33432 ◽  
Author(s):  
Shengfang Li ◽  
Shilin Yan
Keyword(s):  
Graphene Oxide ◽  
Acrylic Acid ◽  
Water Solution ◽  
Solvent Mixture ◽  
Ph Sensitive ◽  
Frontal Polymerization ◽  
Nanocomposite Hydrogels ◽  
Conductive Medium ◽  
Sensitive Behavior ◽  
Poly Acrylic Acid

Macroporous pH-sensitive graphene oxide (GO)/poly(acrylic acid-co-acrylamide) (PAA) nanocomposite hydrogels were prepared by frontal polymerization (FP) using a solvent mixture composed of DMF and a small quantity of GO water solution as a heat conductive medium.

Preparation and Characterization of Interpenetrating Polymer Hydrogels Based on Poly(acrylic acid) and Poly(vinyl alcohol)

2005 ◽  
Vol 222 (1) ◽  
pp. 163-168 ◽  
Author(s):  
Rebeca Hernández ◽  
Daniel López ◽  
Ernesto Pérez ◽  
Carmen Mijangos
Keyword(s):  
Acrylic Acid ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Polymer Hydrogels ◽  
Poly Acrylic Acid
Sign in / Sign up

Export Citation Format

Share Document