The determination of the lower critical concentration temperature and intrinsic viscosity: The syneresis reaction of polymeric gels

Ako, Komla; Elmarhoum, Said; Munialo, Claire D.

doi:10.1016/j.foodhyd.2021.107346

Cited by 9 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main reason is that the increase of polymer concentration causes the increase in the movement resistance of the polymer in the solution, so the polymer is difficult to flow, and the viscosity increases. However, when the temperature rises or time increases, the polymer degrades from a long molecular chain to a short molecular chain, decreasing the viscosity 60 . In addition, it can also be seen that the viscosity of LHPAM is greater than that of HPAM at the beginning, but the viscosity of LHPAM and HPAM gradually decreases with increasing time.…”

Section: Resultsmentioning

confidence: 95%

“…However, when the temperature rises or time increases, the polymer degrades from a long molecular chain to a short molecular chain, decreasing the viscosity. 60 In addition, it can also be seen that the viscosity of LHPAM is greater than that of HPAM at the beginning, but the viscosity of LHPAM and HPAM gradually decreases with increasing time. Simultaneously, it was also found that since the viscosity of LHPAM decreased faster than that of HPAM, the viscosity of LHPAM was less than that of HPAM from day 2.…”

Section: Viscosity Analysismentioning

confidence: 93%

“…The effect of different temperatures on the viscosity: The LHPAM solution with a concentration of 3% was prepared, and the viscosity of the LHPAM was measured at different temperatures (20,40,60,80, 100 C) for three consecutive days.…”

Section: Viscosity Analyzingmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of a low viscosity amphoteric polyacrylamide and its application in oilfield profile control

Tian

Hongzhou

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

A low viscosity amphoteric polyacrylamide (LHPAM) was synthesized with Acrylamide and a Cationic etherifying agent. FTIR, SEM, and EDS all suggest that it successfully synthesized a new material. It can be demonstrated from TG and DSC that the temperature resistance of LHPAM is higher than that of partially hydrolyzed polyacrylamide (HPAM) and it can be found from ultraviolet–visible spectrophotometer that the flocculability of LHPAM is stronger than that of HPAM. The viscosity testing shows that the viscosity of LHPAM is greater than that of HPAM at the beginning, but the viscosity of LHPAM has been ultimately lower than that of HPAM after 1d. In addition, LHPAM reacts with Cr3+ to form a gel with an interpenetrating network structure, while HPAM is a gel with a comb‐shaped system, and the gelation time of LHPAM is longer than that of HPAM. However, the final gelation strength is the same. The final flow experiment shows that the plugging rates of LHPAM and HPAM are greater than 95%, but the resistance coefficient of LHPAM is smaller than that of HPAM. This study expands the application of HPAM in profile control and water shutoff, which is of great significance for enhanced oil recovery.

show abstract

Section: Resultsmentioning

confidence: 95%

Section: Viscosity Analysismentioning

confidence: 93%

See 1 more Smart Citation

Synthesis of a low viscosity amphoteric polyacrylamide and its application in oilfield profile control

Tian

Hongzhou

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…The viscosity of the free salt solution of α-Car is observed to be greater than the viscosity of the free salt solution of κ-Car at a similar molecular weight, polysaccharide concentration and temperature conditions. Intrachain repulsive forces and water molecules binding capacity would be greater for α-Car than κ-Car (Ako, Elmarhoum & Munialo, 2022), and accordingly, the sulfate on the anhydro-D-galactose unit promotes more expansion of the polysaccharide than the sulfate on the D-galactose unit.…”

Section: Discussionmentioning

confidence: 99%

Sulfate groups position determines the ionic selectivity and syneresis properties of carrageenan systems

Elmarhoum

Mathieu

Ako

et al. 2023

Carbohydrate Polymers

View full text Add to dashboard Cite

Probiotic-Derived Exopolysaccharide as a Natural Stabilizer for Limonene Emulsions: A Novel Approach to Enhancing Stability and Bioactive Properties

Balyan,

Dhowlaghar,

Dadwal

et al. 2024

Food Bioprocess Technol

View full text Add to dashboard Cite

The determination of the lower critical concentration temperature and intrinsic viscosity: The syneresis reaction of polymeric gels

Cited by 9 publications

References 39 publications

Synthesis of a low viscosity amphoteric polyacrylamide and its application in oilfield profile control

Synthesis of a low viscosity amphoteric polyacrylamide and its application in oilfield profile control

Sulfate groups position determines the ionic selectivity and syneresis properties of carrageenan systems

Probiotic-Derived Exopolysaccharide as a Natural Stabilizer for Limonene Emulsions: A Novel Approach to Enhancing Stability and Bioactive Properties

Contact Info

Product

Resources

About