Experimental studies on the desorption of adsorbed sodium poly(acrylic acid) from crude kaolin particles

Demir, Feridun

doi:10.1016/j.clay.2014.12.017

Cited by 5 publications

(3 citation statements)

References 53 publications

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“…PAA and its polyacrylates derivatives are quite versatile for many applications. They are widely used as scale inhibitors, clay deflocculants, superabsorbents, antimicrobial agents, adsorbents in wastewater treatment, biomedical applications, and cosmetic additives …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] PAA and its polyacrylates derivatives are quite versatile for many applications. They are widely used as scale inhibitors, clay deflocculants, [4] superabsorbents, [5] antimicrobial agents, [6] adsorbents in wastewater treatment, [7,8] biomedical applications, [9] and cosmetic additives. [10] PAA is employed in the ceramic industry as deflocculating and spreading agent, where its molecular microstructure must be fine-tuned to ensure an adequate performance.…”

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confidence: 99%

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A Safety Strategy for Producing Poly(Acrylic Acid) of Low Molar Mass

Montenegro

Gutierrez

Vaillard

et al. 2017

Macro Reaction Engineering

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The synthesis of poly(acrylic acid) (PAA) of low molar mass under safe conditions is difficult due to the high polymerization rate of acrylic acid (AA) and the fast heat generation. The aqueous‐solution “semibatch” polymerization of non‐ionized AA in almost starved conditions involves high initiator loads when low molar masses are required. This article proposes the simultaneous feeding of AA and nonconventional chain transfer agents (CTA) as a strategy aimed at controlling both the molar masses and the generated heat rate. Three CTAs are investigated: 2‐mercaptoethanol, thioglycolic acid, and isopropyl alcohol. Even when PAA of relatively low molar mass can be produced by adequately selecting the flow rates and concentrations of both AA and CTA, it is found that the nature of CTA can have a significant effect on the polymerizations kinetics. The mechanisms responsible for these effects are discussed with the help of a representative mathematical model.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

A Safety Strategy for Producing Poly(Acrylic Acid) of Low Molar Mass

Montenegro

Gutierrez

Vaillard

et al. 2017

Macro Reaction Engineering

View full text Add to dashboard Cite

show abstract

“…To achieve welldispersed and stable clay suspensions with excellent uidity at a high solids contents for cutting-edge applications, a variety of dispersants, such as sodium hexametaphosphate, 12 sodium polyacrylate, 13 and sodium polyphosphate, 14 are applied to modify the particle surfaces to enhance the electrostatic repulsion between clays. 15,16 Moreover, chemical modication of clay has been applied extensively to improve its dispersity in water. 10,17 However, chemical functionalization increases the production cost of clay.…”

Section: Introductionmentioning

confidence: 99%