Aqueous condition-tolerated high internal phase oil-in-water Pickering emulsion as building block for engineering 3D functional materials

He, Xiuli; Li, Jianbo; Li, Zhangkang; Samchek, Moriah; Gates, Ian D.; Hu, Jinguang; Lu, Qingye

doi:10.1016/j.cej.2022.137162

Cited by 20 publications

(12 citation statements)

References 68 publications

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“…Then, 100 mL toluene was gradually added to the CNC‐acetone system to replace the acetone by the same procedure. [ 63 ] The CNC‐toluene suspension (0.5 g CNC in 100 mL toluene) was introduced into a three‐necked flask, and then different dosages of 3‐trimethoxysily propyl methacrylate were added into the mixture with magnetic stirring at 300 rpm at 110 °C; the reaction was allowed to proceed for 6 h. In this work, three different modification levels of CNC were obtained: 5%, 10%, and 20%. The modification level was calculated by assuming 1 mol hydroxy group at C6 of the cellulose backbone would react with 1 mol 3‐trimethoxysily propyl methacrylate.…”

Section: Methodsmentioning

confidence: 99%

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Highly Stretchable, Repairable, and Tough Nanocomposite Hydrogel Physically Cross‐linked by Hydrophobic Interactions and Reinforced by Surface‐Grafted Hydrophobized Cellulose Nanocrystals

Chen

2023

Macromol. Rapid Commun.

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Highly stretchable, repairable, and tough nanocomposite hydrogels are designed by incorporating hydrophobic carbon chains to create first‐layer cross‐linking among the polymer matrix and monomer‐modified polymerizable yet hydrophobic nanofillers to create second‐layer strong polymer‐nanofiller clusters involving mostly covalent bonds and electrostatic interactions. The hydrogels are synthesized from three main components: hydrophobic monomer DMAPMA‐C18 by reacting N‐[3‐(dimethylamino)propyl]methacrylamide] (DMAPMA) with 1‐bromooctadecane, monomer N,N‐dimethylacrylamide (DMAc), and monomer‐modified polymerizable hydrophobized cellulose nanocrystal(CNC‐G) obtained by reacting CNC with 3‐trimethoxysily propyl methacrylate. The polymerization of DMAPMA‐C18 and DMAc and physical cross‐linking due to the hydrophobic interactions between C18 chains make DMAPMA‐C18/DMAc hydrogel. The additional introduction of CNC‐G brings more interactions into the final hydrogel (DMAPMA‐C18/DMAc/CNC‐G): the covalent bonds between CNC‐G and DMAPMA‐C18/DMAc, hydrophobic interactions, electrostatic interactions between negatively charged CNC‐G and positively charged DMAPMA‐C18, and hydrogen bonds. The optimum DMAPMA‐C18/DMAc/CNC‐G hydrogel exhibits excellent mechanical performance with elongation stress of 1085 ± 14 kPa, strain of 4106 ± 311%, toughness of 3.35 × 104 kJ m−3, Young's modulus of 844 kPa, and compression stress of 5.18 MPa at 85% strain. Besides, the hydrogel exhibits good repairability and promising adhesive ability (83–260 kN m−2 toward various surfaces).

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Section: Methodsmentioning

confidence: 99%

“…Zeta Potential: The 0.5 w/v% CNC dispersion for the zeta potential measurements was prepared by dispersing different modification level of CNCs in 100 × 10 −3 NaCl solution. [63] And the measurements were taken by using Zetasizer Nano (Malvern Instruments Ltd.)…”

Section: Synthesis Of Modified Cnc (Cnc-g)mentioning

confidence: 99%

Highly Stretchable, Repairable, and Tough Nanocomposite Hydrogel Physically Cross‐linked by Hydrophobic Interactions and Reinforced by Surface‐Grafted Hydrophobized Cellulose Nanocrystals

Chen

2023

Macromol. Rapid Commun.

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“…The SiO 2 NP surface was hydrophobized via the silylation reaction between the hydroxyl groups on SiO 2 and trichloro(octyl)silane. 34 Briefly, SiO 2 NPs (1 g) were dispersed in toluene (50 mL) in an ultrasonic bath (VWR, Ultrasonic Cleaner with Digital Timer) for 10 min, followed by the addition of trichloro(octyl)silane (500 μL) under a constant stirring speed at 400 rpm. After 20 h, the hydrophobized SiO 2 NPs were collected by centrifugation at 4900 rpm (10 min, accuSpin 8C Clinical Centrifuge, Fisher Scientific) and rinsed with toluene three times, followed by drying in a vacuum oven for 24 h. Similarly, CNC surfaces were grafted with hydrocarbons by reacting CNC (1 g) and trichloro(octyl)silane (1 mL) according to the previous work.…”

Section: Methodsmentioning

confidence: 99%

Blowing-inspired ex situ preparation of ultrathin hydrogel coatings for visibly monitoring humidity and alkaline gas

Yang

et al. 2023

Nanoscale

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“…PolyHIPE hydrogels can be used as a delivery system for therapeutics when the internal phase is a pharmaceutical itself . For example, Rotello and co-workers prepared biodegradable protein-based polyHIPEs from a one-step approach where various nonpolar essential oils were used as an antimicrobial internal phase.…”

Section: Naturally Occurring Polymersmentioning

confidence: 99%

Synthesis and Applications of Elastomeric Polymerized High Internal Phase Emulsions (PolyHIPEs)

McKenzie

Ayres

2023

ACS Omega

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Polymer foams (PFs) are among the most industrially produced polymeric materials, and they are found in applications including aerospace, packaging, textiles, and biomaterials. PFs are predominantly prepared using gas-blowing techniques, but PFs can also be prepared from templating techniques such as polymerized high internal phase emulsions (polyHIPEs). PolyHIPEs have many experimental design variables which control the physical, mechanical, and chemical properties of the resulting PFs. Both rigid and elastic polyHIPEs can be prepared, but while elastomeric polyHIPEs are less commonly reported than hard polyHIPEs, elastomeric polyHIPEs are instrumental in the realization of new materials in applications including flexible separation membranes, energy storage in soft robotics, and 3D-printed soft tissue engineering scaffolds. Furthermore, there are few limitations to the types of polymers and polymerization methods that have been used to prepare elastic polyHIPEs due to the wide range of polymerization conditions that are compatible with the polyHIPE method. In this review, an overview of the chemistry used to prepare elastic polyHIPEs from early reports to modern polymerization methods is provided, focusing on the applications that flexible polyHIPEs are used in. The review consists of four sections organized around polymer classes used in the preparation of polyHIPEs: (meth)acrylics and (meth)acrylamides, silicones, polyesters and polyurethanes, and naturally occurring polymers. Within each section, the common properties, current challenges, and an outlook is suggested on where elastomeric polyHIPEs can be expected to continue to make broad, positive impacts on materials and technology for the future.

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Aqueous condition-tolerated high internal phase oil-in-water Pickering emulsion as building block for engineering 3D functional materials

Cited by 20 publications

References 68 publications

Highly Stretchable, Repairable, and Tough Nanocomposite Hydrogel Physically Cross‐linked by Hydrophobic Interactions and Reinforced by Surface‐Grafted Hydrophobized Cellulose Nanocrystals

Highly Stretchable, Repairable, and Tough Nanocomposite Hydrogel Physically Cross‐linked by Hydrophobic Interactions and Reinforced by Surface‐Grafted Hydrophobized Cellulose Nanocrystals

Blowing-inspired ex situ preparation of ultrathin hydrogel coatings for visibly monitoring humidity and alkaline gas

Synthesis and Applications of Elastomeric Polymerized High Internal Phase Emulsions (PolyHIPEs)

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