Electrical conductivity of an all-natural and biocompatible semi-interpenetrating polymer network containing a deep eutectic solvent

Gachuz, Edwin J.; Castillo-Santillán, Martín; Juárez-Moreno, Karla; Maya-Cornejo, J.; Martínez‐Richa, Antonio; Andrio, Andreu; Compañ, Vicente; Mota‐Morales, Josué D.

doi:10.1039/d0gc02274h

Cited by 37 publications

(32 citation statements)

References 76 publications

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“…Figure compares the EP analysis results of simultaneously conducting ion content p (Figure a) and their mobility μ (Figure b) for our ROMP PILs (Supporting Information contains the EP analysis with Figure S1). This method has been successfully demonstrated for various single-ion conducting polymers. ,,,− For the double-armed ROMP PILs, the OE x linker leads to a considerable increase in p (Figure a) and p / p 0 (fraction of Tf 2 N anions simultaneously participating in conduction, shown in the inset of Figure a). In particular, the PIL containing the OE 3 linker (P_D_C 2 OE 3 ImEO 2 ) exhibits >3 times higher p , compared to the PIL with no OE in the linker (P_D_C 2 ImEO 3 ).…”

Section: Results and Discussionmentioning

confidence: 99%

Role of Chain Polarity on Ion and Polymer Dynamics: Molecular Volume-Based Analysis of the Dielectric Constant for Polymerized Norbornene-Based Ionic Liquids

et al. 2020

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Norbornene-based polymerized ionic liquids (PILs) were systematically prepared to understand the role of PIL architecture and linker on the ionic conductivity (σ DC ), segmental dynamics, and dielectric constant. In PILs with two-or one-armed imidazolium (Im + )-bis(trifluoromethanesulfonyl)imide (Tf 2 N − ) pendants, their dynamics and polarity were tuned by incorporating either oxyethylene [(OCH 2 CH 2 ) x = (OE) x , x = 1 or 3] or alkylene [(CH 2 ) 2 ] moieties as linkers between the norbornene and imidazolium cation moieties and ethyleneoxy [(CH 2 CH 2 O) y = (EO) y , y = 2 or 3] terminal units on the imidazolium. All PILs exhibit three dipolar relaxations; the local chain β motions of the PIL pendants were observed below the glass transition temperature (T g ), while above T g , the segmental α and slower ionic rearranging α 2 relaxations were observed. Unlike the alkylene linker, the OE linker incorporation speeds up the α and α 2 relaxations (consistent with the decrease in T g ), increases the relaxation strengths [leading to an increase in the static and Coulombic dielectric constants (ε s and ε C )], imparts a higher number density of simultaneously conducting ions (p), and boosts their mobility (μ). This is directly reflected in the OE-containing PILs having 10 times higher ionic conductivities (σ DC ) than the PIL with the alkylene linker. The T g , ε s , and σ DC are significantly influenced by the repeat unit molecular volume (V m ), polarizability volume (V p ), and Keesom volume (V K ), suggesting that the OE linker not only facilitates ion dissociation of Im + Tf 2 N − but also promotes segmental motion, thereby leading to a strong correlation of ionic conductivity with the dielectric constant and glass transition temperature.

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Section: Results and Discussionmentioning

confidence: 99%

Role of Chain Polarity on Ion and Polymer Dynamics: Molecular Volume-Based Analysis of the Dielectric Constant for Polymerized Norbornene-Based Ionic Liquids

et al. 2020

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“…ChCl was oven‐dried under vacuum at 90°C for 1 h to remove moisture. The NDES was prepared by mixing ChCl and Gly in a molar ratio of 1:2 28 . The mixture was heated and stirred at 60°C until a homogenous colorless solution was formed.…”

Section: Methodsmentioning

confidence: 99%

“…The NDES was prepared by mixing ChCl and Gly in a molar ratio of 1:2. 28 The mixture was heated and stirred at 60 C until a homogenous colorless solution was formed. The prepared NDES was kept in a vacuum desiccator for further use.…”

Section: Preparation Of Ndesmentioning

confidence: 99%

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A stretchable, compressible and anti‐freezing ionic gel based on a natural deep eutectic solvent applied as a strain sensor

Yan

Lian

2022

J of Applied Polymer Sci

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Glycerin (Gly), a common by-product in petrochemical industry, is used as hydrogen bond donor. Green organic choline chloride (ChCl) as hydrogen bond acceptor. Natural deep eutectic solvent (NDES) can be prepared with Gly and ChCl. Subsequently, a starch/NDES ionic gel is prepared by in situ free radical polymerization of acrylamide monomer in NDES with starch as the reinforcement. The effects of amylose content in starch and starch addition amount on mechanical properties of ionic gel are analyzed. The results show that starch could be partially dissolved and dispersed in NDES. Compared with the tensile strength of pure NDES gel (about 15 kPa), the tensile strength of starch/NDES ionic gel is increased by 6 times to 90 kPa. It shows good selfrecovery performance after 20 compression cycles. Starch/NDES ionic gel has good thermal stability and frost resistance. In addition, CS4 starch/NDES ionic gel has the highest conductivity. At the same time, starch/NDES ionic gel has been successfully applied to monitor grasping motion of hand, which has the potential of strain sensor. It provides a new green method for the design of electronic products such as electronic skin.

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“…142,236 Another elegant way to structure DESs into gels relies on the addition of a small gelator that self-assembles into a nanoscale network as a result of intermolecular noncovalent interactions, generating eutectogels with tolerance to ionic salt additives and similar ionic conductivities to the native DESs. 238 The proper interaction of DESs and flexible polymers, 91,92 including natural polysaccharides, 95,101,[239][240][241] was also used to obtain films or ion conductive gels to be used as electrolytes in soft electronics, for instance for flexible supercapacitors for wearable electronics and stretchable power supplies. In these electrolytes, the formation of a genuine DES or a more complex system is questionable and needs further elucidation.…”

Section: Multivalent Systemsmentioning

confidence: 99%

Deep eutectics and analogues as electrolytes in batteries

Pietro

Mele

2021

Journal of Molecular Liquids

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Deep eutectic Solvents (DESs) are an emerging class of materials showing a marked depression in melting points compared to those of the neat constituents and characterized by a number of beneficial properties. DES research currently prospers and out of the multiple current applications, the electrochemistry field is likely the most flourishing. This detailed review emphasizes recent research efforts in order to apply type III and type IV DESs and their analogues as electrolytes for rechargeable cationic batteries. The recent developments in the last decade are outlined, framing outstanding achievements and open questions, and identifying future optimisation directions to overcome the existing challenges.

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Electrical conductivity of an all-natural and biocompatible semi-interpenetrating polymer network containing a deep eutectic solvent

Abstract: A series of semi-interpenetrated polymer networks (semi-IPNs) consisting of crosslinked poly(itaconic acid) in the presence of the polysaccharide inulin were prepared by free-radical polymerization, taking advantage of the deep eutectic...

Cited by 37 publications

References 76 publications

Role of Chain Polarity on Ion and Polymer Dynamics: Molecular Volume-Based Analysis of the Dielectric Constant for Polymerized Norbornene-Based Ionic Liquids

Role of Chain Polarity on Ion and Polymer Dynamics: Molecular Volume-Based Analysis of the Dielectric Constant for Polymerized Norbornene-Based Ionic Liquids

A stretchable, compressible and anti‐freezing ionic gel based on a natural deep eutectic solvent applied as a strain sensor

Deep eutectics and analogues as electrolytes in batteries

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