Bioinspired mineral–organic strategy for fabricating a high-strength, antibacterial, flame-retardant soy protein bioplastic via internal boron–nitrogen coordination

Kuang, Li; Jin, Shicun; Jiang, Shuaicheng; Li, Xiaona; Li, Jiongjiong; Li, Jianzhang

doi:10.1016/j.cej.2021.132616

Cited by 38 publications

(19 citation statements)

References 47 publications

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“…Except the construction of physical cross-linking through hydrogen bonding and the presence of rigid benzene and microphase separation, the dynamic C−N bonds in spirolactam normally break before the covalent network, thus facilitating energy dissipation during the continuous stretching (Figure 1g), which enabled the improvement of the elongation at break of polyurethane films. 50 The unique structures of these polyurethanes, including highly hydrogen-bonded, rigid-ring, sensitive C−N spiro bonds, lead to the self-toughening mechanical behavior simultaneously with excellent tensile strengths, elongation at break, and toughness.…”

Section: Resultsmentioning

confidence: 99%

Scalable Production of Self-Toughening Plant Oil-Based Polyurethane Elastomers with Multistimuli-Responsive Functionalities

Xie

Deng

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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Plant oils are becoming of high industrial importance due to the persisting challenges befalling with the utilization of fossil fuels. Thus, developing methodologies to produce multifunctional materials by taking advantage of the unique structure of plant oil is highly desired. In this study, castor oil served as a cross-linker and soft segments, by incorporating scalable rhodamine 6G derivatives, to systematically synthesize a series of smart polymers that possess self-toughening and multistimuli-responsive capabilities. The polyurethane elastomers showed 10 times and 60 times increases in tensile strength and toughness, respectively, in comparison with the unmodified polyurethane due to the existence of large amounts of hydrogen bonding, dynamic C−N spiro bonds, rigid benzene ring, and high cross-link densities. The novel polyurethane elastomers exhibited excellent reversible multichromic behaviors in response to light, pH, and mechanics. Notably, the resulting polyurethane elastomers exhibited ultrasensitive sustained photochromism with tunable white emission and rapid reversibility. This study provides a simple and effective strategy to utilize plant oil for multifunctional material preparation and paves the way to open access for application of plant oil-based products in a variety of industry applications, such as sensors, self-fitting tissue scaffolds, and switchable devices.

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Section: Resultsmentioning

confidence: 99%

Scalable Production of Self-Toughening Plant Oil-Based Polyurethane Elastomers with Multistimuli-Responsive Functionalities

Xie

Deng

Zhang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Hydroxyl groups could have exerted an antibacterial effect either due to their interaction with the bacterial membrane [32,33] or by having different effects on the local pH developing during the bacterial proliferation. It was already proved that geopolymers are stable during immersion in water [23] but it cannot be excluded that the peculiar chemical composition could alter pH locally affecting bacterial proliferation.…”

Section: Discussionmentioning

confidence: 99%

Mechanical and antibacterial behavior of multilayered geopolymer coatings on Ti6Al4V alloys

et al. 2022

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Geopolymers are commonly used in a wide range of applications including binders into the building industry, production of refractory elements, filtration systems, low CO2 emission applications, etc. Their production can be performed either by acidic or alkaline formulation. In the last 15 years, however, they have been proposed also in biomedical applications for bone tissue regeneration. The aim of this work is the preparation of a thin and homogeneous geopolymer coating on a Ti6Al4V alloy in order to test their futuristic application as coating of prosthetic devices made with this metal alloy. Multilayered coatings were therefore produced by mean of dip coating with the aim of verifying which formulation, acidic or alkaline maximize adhesion. The morphological and chemical characteristics of the coatings were analyzed and adhesion of geopolymers to the substrate was investigated by scratch tests. Finally, a bacterial growth test was performed to verify antibacterial properties of the coatings. Graphical abstract

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“…The presence of internal N→B coordination offered the materials better humidity stability than traditional boronate ester and retained reprocessability at a high temperature (150 °C) (Figure b). This strategy was also applied to polystyrene (PS), cyclic polyolefin/polystyrene vitrimers, and soy protein bioplastic. − …”

Section: N-coordinated Boronic Acids or Esters In Healable And Reproc...mentioning

confidence: 99%

N-Coordinated Organoboron in Polymer Synthesis and Material Science

Dong

et al. 2022

ACS Polym. Au

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Organoboron chemistry has been widely explored and developed in synthetic chemistry for over half a century and provides various elegant synthetic protocols in polymer synthesis. Compared with most trivalent bare organoboron compounds, Ncoordinated organoboron shows better performances, such as air and moisture stability. This review summarizes the application of various N-coordinated boranes and boronic acid/esters in polymer synthesis and materials science. We introduce the significance of N-coordinated boranes and boronate esters for controllable polymer synthesis and systematically summarize the structures and properties of polymers containing N-coordinated boronate esters. Furthermore, we highlight the effect of N→B dative bonds on improving the performance of self-healing materials. We hope that, through this review, more researchers will realize the advantages of N-coordinated organoboron and promote the development of this direction in polymer synthesis and materials science.

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Bioinspired mineral–organic strategy for fabricating a high-strength, antibacterial, flame-retardant soy protein bioplastic via internal boron–nitrogen coordination

Cited by 38 publications

References 47 publications

Scalable Production of Self-Toughening Plant Oil-Based Polyurethane Elastomers with Multistimuli-Responsive Functionalities

Scalable Production of Self-Toughening Plant Oil-Based Polyurethane Elastomers with Multistimuli-Responsive Functionalities

Mechanical and antibacterial behavior of multilayered geopolymer coatings on Ti6Al4V alloys

N-Coordinated Organoboron in Polymer Synthesis and Material Science

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