Preparation and surface‐ active properties of polyoxyethylene‐glycol (600) monoesters of fatty acids

Rao, T. C.; Sastry, Y. Sita Rama; Subbarao, R.; Lakshminarayana, G.

doi:10.1007/bf02671366

Cited by 9 publications

(7 citation statements)

References 10 publications

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“…[18,19,20,21] Their biocatalyzed synthesis can be accomplished with NZ435. [18,22] but suffers from the previously described disintegration of the catalyst carrier in STR or from enzyme leaching in the presence of surface active reactants, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Enabling Industrial Biocatalytic Processes by Application of Silicone‐Coated Enzyme Preparations

et al. 2011

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Composite particles of the commercial lipase preparation NZ435 and silicone (silcoat-NZ435) have recently been described as promising biocatalysts for synthetic use. In this study, their actual potential for enhanced performance in industrial applications was evaluated, focusing on scenarios where carrier disintegration and catalyst leaching constitute key limitations. All three investigated model reactions, the syntheses of myristyl myristate, poly(ethylene glycol) 400-coconut fatty acid monoester and ethylene oxide and propylene oxide co-A C H T U N G T R E N N U N G polymer (EO/PO)-oleic acid diester, were considerably improved in terms of the maximal number of reaction cycles performed with the same batch of catalyst, and consequently in terms of the obtainable product amount. The total turnover numbers (TTN) increased by a factor up to 50, making the realization of this type of reactions in an industrial process more feasible. The utility of silcoat-NZ435 for stereoselective transformations was demonstrated with the enantioselective acylation of 1-phenylethanol with vinyl butyrate, in which full retention of the excellent stereoselectivity of native NZ435 was observed. Moreover, it was demonstrated for the first time that the methodology by which silcoat-catalysts are obtained can be successfully transferred to alternative carriers and enzymes (e.g., protease, esterase and laccase), opening a broad field for the implementation and advancement of biocatalysis in industrial processes.

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Section: Resultsmentioning

confidence: 99%

“…Myristyl myristate, poly(ethylene) glycol 400‐coconut fatty acid monoester and EO/PO‐oleic acid diester are important examples for industrial commodity products with uses in the cosmetic, pharmaceutical and food industries 18,19,20,21. Their biocatalyzed synthesis can be accomplished with NZ435 18,22.…”

Section: Resultsmentioning

confidence: 99%

Enabling Industrial Biocatalytic Processes by Application of Silicone‐Coated Enzyme Preparations

et al. 2011

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“…PEG fatty‐acid esters are produced by either ethoxylation (Wrigley et al, ) or esterification (Astle et al, ) of fatty acids. Even if these production routes lead to the formation of a mixture of mono and diesters, PEG fatty acid esters have been extensively used as low foamers, good emulsifiers, and dispersing agents in a wide range of industries: textile, cosmetics, agrochemicals, household goods, or medicine (O'Lenick, ; Rao et al, ). For example, PEG stearates are used as emulsifiers for the preparation of cosmetic products (Greg, ).…”

Section: Surfactants Based On a Natural Hydrophobic Tailmentioning

confidence: 99%

Renewable Surfactants for Biochemical Applications and Nanotechnology

Guenic

Chaveriat

Lequart

et al. 2018

J Surfact & Detergents

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Surfactants find applications in almost every chemical industry, such as household and industrial cleaning, paper, inks, agrochemicals, and personal care or pharmaceuticals. However, their production and use can have a negative impact on the environment and health. Increasing environmental concerns and the strong interest in renewable resources have led to the development of innovative and environmentally friendly surfactants produced by clean and/or sustainable technologies. The aim of this review is to explore the different types of surfactants and their architectures. Then, it will describe the two categories of renewable surfactants: biosurfactants obtained by fermentation, and bio‐based surfactants containing either a bio‐sourced polar head group or a bio‐sourced hydrophobic tail. Finally, this review will focus on highly specialized applications of surfactants (protein crystallization, transfection, and nanotechnology), which are closely related to the ability of surfactants to organize themselves in supramolecular architectures.

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“…Polyethylene glycol fatty acid ester is a multi‐functional Nonionic surfactant with high emulsification, wettability, and solubilization. Nonionic surfactant with amphiphilic structure, as a degradable green Nonionic surfactant product, is widely used in the daily chemical industry, food, pesticide, textile, metal processing, and other fields 14,15 …”

Section: Introductionmentioning

confidence: 99%

“…Nonionic surfactant with amphiphilic structure, as a degradable green Nonionic surfactant product, is widely used in the daily chemical industry, food, pesticide, textile, metal processing, and other fields. 14,15 To sum up, the internal release agent may remain in the resin during molding, and the diaphragm formed by the migration of the S C H E M E 1 Synthesis of the mold release agent release agent to the resin surface is not easy to fall off, which has an adverse effect on the follow-up treatment of the material. 12 At present, the most commonly used release agents on the market are external release agents, especially silicone release agents and organofluorine release agents.…”

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confidence: 99%

Study on synthesis and demolding performance of polyethylene glycol fatty acid mold release agents

Gao

Zeng

et al. 2021

Polymers for Advanced Techs

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Release agent is an indispensable kind of processing aids for composite molding. A kind of release agents was synthesized by using polyethylene glycol (M n = 200, 300, 400) with different molecular weight as raw material, reacting with fatty acids with different carbon chains length (lauric acid, myristic acid, hexadecanoic acid, and stearic acid), and further crosslinking with phosphoric acid. The chemical structure of the synthesized release agent was confirmed by FT-IR and 1 H-NMR. Through the performance test of the synthesized demolding agent, five release agents with excellent performance were screened out. The results showed: The release agents can be well dissolved in ethanol, a green and environment-friendly solvent. The molecular weight was 480-630. The release agent's acid value was between 0.05 and 0.06KOH/(mg/g). The peeling strength was 0.066-0.087 MPa and the interlaminar shear strength was 1.101-1.323 MPa. The film-forming time of the release agents on the mold was 1.5 min-3.5 min. The number of demolding was 16-20 times. The micro-morphology of the resin surface demolded by NnP release agent synthesized in the present study and Meishu brand release agent widely-used in the market was observed and compared by scanning electron microscope, indicating that the surface morphology of the resin demolded by NnP release agent was smoother after release.So the NnP release agents can be used in actual production.

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Preparation and surface‐ active properties of polyoxyethylene‐glycol (600) monoesters of fatty acids

Cited by 9 publications

References 10 publications

Enabling Industrial Biocatalytic Processes by Application of Silicone‐Coated Enzyme Preparations

Enabling Industrial Biocatalytic Processes by Application of Silicone‐Coated Enzyme Preparations

Renewable Surfactants for Biochemical Applications and Nanotechnology

Study on synthesis and demolding performance of polyethylene glycol fatty acid mold release agents

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