Michael Addition Reaction Assisted Derivation of Functional and Durable Superhydrophobic Interfaces

Abstract

Bioinspired superhydrophobicity embedded functional interfaces hold immense possibilities to remediate different existing challenges in our day to day life. However, the durability, scalability of the conventional biomimicked superhydrophobic interfaces, the lack of an avenue to embed different, relevant chemical functionalities to tailor the water wettability and other relevant physical properties are major concerns. In this perspective, we have provided an insight into the advantageous use of “reactive” chemistries for building the desired topography and surface chemistry to achieve tailorable water wettability. We have further outlined the emerging future of Michael addition reaction as a promising, facile platform to derive scalable and robust superhydrophobicity. The stark comparison and superiority of the catalyst-free Michael addition reaction over the existing “reactive” chemistries for achieving a common avenue to tailor different water wettabilities is outlined in detail in this perspective. The judicious choice of reactants and reaction conditions in the Michael addition reaction provides an unprecedented basis to modulate relevant physical properties and different bioinspired superhydrophobicities. Moreover, we have discussed the usefulness of this economical chemical approach to convert eco-friendly, naturally abundant ingredients and wastes into abrasion tolerant materials embedded with bioinspired wettability, reports of which are rare in the literature. Based on the developments to date, Michael addition reaction can prove to be revolutionary for designing durable and functional bioinspired materials.

Role of chemistry in bio-inspired liquid wettability

“…[9][10][11][12][13][14][15][16][17][18][19] Over the years, various research groups have developed biomimicked antiwetting interfaces ranging from a few nanometers thickness to bulk antiwetting materials for a wide range of applications in energy, healthcare, and environmental remediation. [21][22][23][24][25][26][27][28][29][58][59][60][61][62] Lithography, 63,64 plasma/chemical etching, 65,66 templation, 67,68 and electrospinning approaches 69,70 have often been adopted to construct different types of hierarchal topography, while various chemistries have been exploited to fulfil the low or high surface energy requirements. 6 There are numerous research articles and review papers that elaborate the aforementioned subjects.…”

“…6 There are numerous research articles and review papers that elaborate the aforementioned subjects. [1][2][3][4][5][6][7][8][9][10][30][31][32][58][59][60][61][62] However, debate over the individual impact of topography and chemistry affecting the liquid repellence property has hardly been a matter of analysis in any review article. In the following sections, we aim to provide a detailed insight into how topography and chemistry play independently important roles in imparting and controlling different bio-inspired liquid wettability.…”

Enabling a Paper-Based Flexible Sensor to Work under Water with Exceptional Long-Term Durability through Biomimetic Reassembling of Nanomaterials from Natural Wood

“…The cross-sectional scanning electron microscopy (SEM) images revealed that the composite paper consisted of interlaced graphite nanoplates and softwood fibers. The lignin nanoparticles cover the surface of the paper forming a hierarchical microstructure, implying the hydrophobicity of the paper. − …”

Various approaches to synthesize water-stable halide PeNCs

“…Superhydrophobic modication could further improve the water stability of PeNCs. [122][123][124] For instance, Zhang et al developed a superhydrophobic lead PeNC lm by creating a self-assembled monolayer of 1H,1H,2H,2H-peruorodecanethiol. 36 The thiol group of the peruorocarbon chains passivated the uncoordinated sites on the perovskite surface by forming the Pb-S bond.…”