Preparation of Functional Xanthan Gum Materials Using Ionic Liquid

Iimori, Keisho; Yamamoto, Katsuhiro; Kadokawa, Jun‐ichi

doi:10.14355/papt.2016.04.006

Cited by 3 publications

(1 citation statement)

References 37 publications

(33 reference statements)

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“…It is composed of cellulose-type main chains (β(1→4)-glucan) with trisaccharide side chains (mannose-β(1→4)-glucuronic acid-β(1→2)-mannose-α(1→3)-) attached to alternate main chain glucose units. 63,64 Xanthan gum does not readily form hydrogels via the usual gelation processes. In fact, an aqueous dispersion of xanthan gum exhibits only a weak gel-like behaviour in the presence of a sufficient amount of inorganic salt.…”

Section: Xanthan Gummentioning

confidence: 99%

Ionic Liquids as Tools in the Production of Smart Polymeric Hydrogels

Silva¹,

Reis²

2017

Polymerized Ionic Liquids

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In this chapter, we review the recent advances in the use of ILs in the process of forming polymeric gels (ionogels) and hydrogels. The tunability and versatility of ILs aligned with the features of natural (e.g. chitin or cellulose) and/or synthetic polymers have opened up new ways to process them not only as hydrogels, but also as matrices in different shapes and sizes. In particular, polymeric hydrogels processed in ILs can be useful for a broad range of applications from the removal of anionic dyes to biomaterials. We also highlight the physico-chemical properties and characteristics of the natural and synthetic polymers most used in the preparation of polymeric ionogels and hydrogels in ILs.

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Section: Xanthan Gummentioning

confidence: 99%

Ionic Liquids as Tools in the Production of Smart Polymeric Hydrogels

Silva¹,

Reis²

2017

Polymerized Ionic Liquids

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Preparation of Functional Polysaccharides and Related Materials Combined with Ionic Liquids

Kadokawa

2017

Polymerized Ionic Liquids

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This chapter mainly focuses on the efficient use of ionic liquids for functionalization and materialization of natural polysaccharides. As ionic liquids are known to exhibit good affinity for polysaccharides, they have been employed in a variety of polysaccharide research studies. Although natural polysaccharides such as cellulose and chitin often show poor solubility in water and common organic solvents, ionic liquids have been found to act as good solvents for them. Accordingly, ionic liquids form ion gels with various polysaccharides via appropriate procedures from solutions. These ion gels can be further converted into value-added materials such as hydrogels, nanofibers, and films. Furthermore, a cellulose/chitin binary ion gel has been used as an electrolyte for an electric double layer capacitor. Because polymerizable ionic liquids also show good affinity for polysaccharides, in situ polymerization in the presence of polysaccharides has efficiently produced composite materials with polymeric ionic liquids. The resulting polysaccharide materials combined with ionic liquids show unique and high performance properties, e.g., shape memory, specific fluorescence emission, and high electrical conductivity.

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Alteration of Wettability and Hydration Properties of Shale using Ionic Liquids in Water-Based Drilling Fluids

Ahmad

Kamal

Murtaza

et al. 2019

Day 4 Thu, November 14, 2019

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Hydration of shale formations during drilling operations have adverse effects on wellbore stability. The shale hydration resulted from the interactions between drilling fluid and swelling clay contents in the shale formations. This paper addresses the improvement of wettability and hydration properties of shale to enhance the wellbore stability during the drilling operations. The novel ionic liquid-based drilling fluids were used to alter the wettability and hydration properties of shale. The novel ionic liquid based drilling fluid was developed by blending various ionic liquids and drilling fluid additives such as filtration control agent and rheological modifier. The rheology and filtration related properties of the base drilling fluid and its modified version with ionic liquids were determined. Shale inhibition characteristics of modified drilling fluids were evaluated by using real field shale sample and analyzing it with linear shale swelling test and hot rolling dispersion test. Two different ionic liquids (IL-1, IL-2) were deployed in the formulation of drilling fluids with a concentration of 0.05%. The conventionally used shale inhibitor KCl was also used in the formulation of drilling fluid with the concentration of up to 2%. The results of modified drilling fluids were then compared with the base drilling fluids prepared by mixing bentonite and cationic polymer (polydadmac). The rheological experiments showed that the addition of KCl and ionic liquids in the base drilling fluid resulted in a decrease in rheological properties. The filtration experiments also showed that filtrate volume has increased with the addition of KCl and ionic liquids in the drilling fluids. The hot rolling shale recovery experiment was performed at 65°C and superior shale recovery was observed with the synergistic effect of B/IL-2/K drilling fluid. Linear swelling of shale was assessed over a time period of 10 hours and minimum linear swelling of shale was observed with B/IL-2/K drilling fluid which indicated that the ionic liquid in the drilling fluid chemically interacts with the shale surface and makes it hydrophobic in nature which limits the interactions of water with shale. This use of novel ionic liquid-based drilling fluid enhances the borehole stability by modifying the shale surface and resulted in improved wellbore stability. The novel drilling fluid also has superior rheological, filtration properties and salt tolerance.

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Preparation of Functional Xanthan Gum Materials Using Ionic Liquid

Cited by 3 publications

References 37 publications

Ionic Liquids as Tools in the Production of Smart Polymeric Hydrogels

Ionic Liquids as Tools in the Production of Smart Polymeric Hydrogels

Preparation of Functional Polysaccharides and Related Materials Combined with Ionic Liquids

Alteration of Wettability and Hydration Properties of Shale using Ionic Liquids in Water-Based Drilling Fluids

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