Novel waterborne polyurethanes containing long-chain alkanes: their synthesis and application to water repellency

Liu, Xiaoli; Zou, Xiaobin; Zhang, Ge; Zhang, Wenguo; Luo, Yunjun

doi:10.1039/c9ra06462a

Cited by 20 publications

(14 citation statements)

References 35 publications

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“…The only tool that regulates the control is zeta potential. Glyceryl monostearate (GMS) modified waterborne polyurethane (GWPU) is a novel waterborne polyurethane containing long chain alkanes has good water repellency [68] . The chemical structure and mechanism are shown in Figure 27.…”

Section: Importance and Application Of Zeta Potentialmentioning

confidence: 99%

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

et al. 2022

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Surface of a particle is inevitably charged. When the particle is surrounded by a fluid a potential difference arises between the surface and bulk, called zeta potential (ζ) which controls many interfacial properties of the particle involving in suspension, emulsion, colloid etc. Many phenomena happening around us have at least one step that passes through an interface. Thus, the application of ζ is practically uncountable. Discovered in late 19th century, almost past 120 years, the application of ζ has emerged in many areas to meet the fruitful need of mankind. However, to the best of our knowledge, there is no report disclosed citing the applications at one place as a ready tool for the readers. The present review accumulates extensive survey of literature, bringing out various aspects of ζ in chemistry, engineering, biology, material, and environmental sciences. A brief theoretical background mentioning the principle and practical applications were focused.

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Section: Importance and Application Of Zeta Potentialmentioning

confidence: 99%

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

et al. 2022

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“…Jay Soni, Pankaj Teli, Nusrat Sahiba, Ayushi Sethiya and Shikha Agarwal* Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, Rajasthan, India *Address all correspondence to: shikhaagarwal@mlsu.ac.in oxidation on the silyl ether intermediate using TBHP in the presence of CuBr in benzene at 45°C under mild reaction conditions in 60% yield [64]. Moreover, oxidized alkenes were used in the synthesis of fine chemicals [65], arene reduction [66], and water repellency [67].…”

Section: Author Detailsmentioning

confidence: 99%

Metal Catalyzed Oxidation Reactions of Alkenes Using Eco-Friendly Oxidants

Soni¹,

Teli²,

Sahiba³

et al. 2021

Alkenes - Recent Advances, New Perspectives and Applications

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Oxidation of alkenes is an important reaction in academia, industry and science as it is used to develop epoxides, carbonyls, allylic compounds, 1,2-diols, etc. Metal catalyzed oxidation of alkenes has aroused as a significant tool in modern organic synthesis. Several techniques are available; however some of them suffer from few shortcomings viz. high cost, toxic nature, harsh reaction condition, solid waste generation, etc. In view of these drawbacks, green oxidants i.e. O2, H2O2, TBHP, etc. have shown noteworthy prospects due to their nature, low cost, high atom economy and high sustainability in metal catalyzed reactions. This chapter highlights the metal catalyzed green oxidation of alkenes and shall provide new strategies for the functionalization and transformation of alkenes.

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“…In contrast, waterborne polyurethanes have attracted much attention from industry and academia due to their lower volatile organic compound emissions and pollution. − Compared with single-component waterborne polyurethanes, a great advantage of two-component waterborne polyurethanes is that they can be prepared on-site using polyol and isocyanate components. − Although the obtained polyurethanes are more environmentally friendly and cleaner, some of their properties are still unsatisfactory for actual application. For instance, their mechanical properties and water resistance are not as good as those of solvent-based polyurethanes, which undermine the practical application of waterborne polyurethanes. , …”

Section: Introductionmentioning

confidence: 99%

Self-Healing and Reprocessable Terpene Polysiloxane-Based Poly(thiourethane-urethane) Material with Reversible Thiourethane Bonds

et al. 2023

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Polyurethane materials will come into contact with different solvents in daily life, and at the same time, they will be subject to different degrees of collision, wear and tear. Failure to take corresponding preventative or reparative measures will result in a waste of resources and an increase in costs. To this end, we prepared a novel polysiloxane with isobornyl acrylate and thiol groups as side groups, which was further used in the preparation of poly(thiourethane-urethane) materials. Thiourethane bonds generated by the click reaction of thiol groups with isocyanates endow poly(thiourethane-urethane) materials with the ability to heal and reprocess. Isobornyl acrylate with a large sterically hindered rigid ring promotes segment migration, accelerating the exchange of thiourethane bonds, which is beneficial to the recycling of materials. These results not only promote the development of terpene derivative-based polysiloxanes but also show the great potential of thiourethane as a dynamic covalent bond in the field of polymer reprocessing and healing.

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Novel waterborne polyurethanes containing long-chain alkanes: their synthesis and application to water repellency

Abstract: In the fabric finishing field, the water repellents have received increasing interest in recent years and the development of a fluorine-free water repellent has become an attractive prospect.

Cited by 20 publications

References 35 publications

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

Revisiting Zeta Potential, the Key Feature of Interfacial Phenomena, with Applications and Recent Advancements

Metal Catalyzed Oxidation Reactions of Alkenes Using Eco-Friendly Oxidants

Self-Healing and Reprocessable Terpene Polysiloxane-Based Poly(thiourethane-urethane) Material with Reversible Thiourethane Bonds

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