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Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids./
作者:	Joseph, Kristeen Esther.
面頁冊數:	1 online resource (155 pages)
附註:	Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
Contained By:	Dissertation Abstracts International79-12B(E).
標題:	Chemical engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9780438169142

Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids.
Joseph, Kristeen Esther.

Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids. - 1 online resource (155 pages)

Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.

Thesis (Ph.D.)--University of Minnesota, 2018.

Includes bibliographical references

An important advance in fluid surface control was the amphiphilic surfactant composed of coupled molecular structures (i.e., hydrophilic and hydrophobic) to reduce surface tension between two distinct fluid phases. Surfactants are widely used in household detergents, cleaners, emulsifiers, foaming agents, and personal care products. Anionic surfactants constitute 50% of the $30 billion global surfactant industry and are widely used in household detergents, and personal care products. Linear alkylbenzene sulfonates (LAS) are widely used due to their low cost and high detergency. Current LAS production methods rely on toxic catalysts and petrochemical-based constituents, such as benzene and long chain hydrocarbons. The reaction has low selectivity to the prescribed linear structure thereby rendering minimal control over the desired composition and properties. Additionally, implementation of simple surfactants such as LAS has been hindered by the broad range of applications in water containing alkaline earth metals (i.e., hard water), which disrupt surfactant function and require extensive use of undesirable and expensive chelating additives.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780438169142Subjects--Topical Terms:

555952
Chemical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids.
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245 1 0 $a Tunable Synthesis and Characterization of Oleo-furan Sulfonate Surfactants from Renewable Furan and Fatty Acids.
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300 $a 1 online resource (155 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
500 $a Adviser: Paul J. Dauenhauer.
502 $a Thesis (Ph.D.)--University of Minnesota, 2018.
504 $a Includes bibliographical references
520 $a An important advance in fluid surface control was the amphiphilic surfactant composed of coupled molecular structures (i.e., hydrophilic and hydrophobic) to reduce surface tension between two distinct fluid phases. Surfactants are widely used in household detergents, cleaners, emulsifiers, foaming agents, and personal care products. Anionic surfactants constitute 50% of the $30 billion global surfactant industry and are widely used in household detergents, and personal care products. Linear alkylbenzene sulfonates (LAS) are widely used due to their low cost and high detergency. Current LAS production methods rely on toxic catalysts and petrochemical-based constituents, such as benzene and long chain hydrocarbons. The reaction has low selectivity to the prescribed linear structure thereby rendering minimal control over the desired composition and properties. Additionally, implementation of simple surfactants such as LAS has been hindered by the broad range of applications in water containing alkaline earth metals (i.e., hard water), which disrupt surfactant function and require extensive use of undesirable and expensive chelating additives.
520 $a Despite years of technology development, most large-volume surfactants are made from petrochemical sources, while efforts to make renewable surfactants are focused on making existing surfactant structures from renewable sources. In this work, we demonstrate a new surfactant based on the natural structure and chemistry of plant-based oils and sugars with superior function and suitability as a replacement to petrochemicals. Furans obtained from lignocellulosic biomass can be acylated with triglyceride-derived fatty acids and anhydrides in the presence of a heterogenous zeolite catalyst. The results obtained for the reaction of lauric anhydride with furan show that different pore sizes, structures and acidity of zeolites result in varying acylation activity. Preliminary kinetic studies of the indirect acylation using anhydrides provide insight into reaction orders and product inhibition resulting in lowering of catalytic activity. Following acylation, the molecule can be upgraded via several independent and sequential chemistries such as etherification, hydrogenation and aldol condensation and finally subjected to sulfonation to yield surfactant molecules termed as oleo-furan sulfonates (OFS) in high yield. Evaluation of surfactant performance of OFS revealed hundredfold better detergency and stability in hard water conditions in comparison with petroleum-derived counterparts. The synthesis of OFS molecules is, highly tunable and selective where the number of carbon atoms in the linear or branched chain can be easily varied without compromising on reaction yields to achieve desired surfactant properties.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Chemical engineering. $3 555952
655 7 $a Electronic books. $2 local $3 554714
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710 2 $a University of Minnesota. $b Chemical Engineering. $3 1188196
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