Fluortenside auf der Basis von Telomeralkoholen; Ethersulfate

Greiner, A.; Krüger, Brigitte; Herbst, M.

doi:10.1002/zfch.19780181023

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…Furthermore, it has been known that surfactants of the type H(CF 2 CF 2 ) n CH 2 O(CH 2 CH 2 O) m H and their sulfates lower the surface tension between water and nonane to 5 mN/m [31,32]. Due to the structural similarity between the surfaces active groups of PFMAb-PEO-b-PFMA block copolymer compared to the above mentioned types of fluorinated surfactants it can be assumed that it also reduces the interfacial tension between water and n-decane when embedded in the surfactant layer.…”

Section: Microemulsion and Peo 20 F4mentioning

confidence: 99%

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Müller¹,

Stühn²,

Busse³

et al. 2009

Journal of Colloid and Interface Science

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Section: Microemulsion and Peo 20 F4mentioning

confidence: 99%

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Müller¹,

Stühn²,

Busse³

et al. 2009

Journal of Colloid and Interface Science

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Strukturabhängige Eigenschaften von Tensiden, untersucht an Reihen von 2‐Alkylsulfaten, Phosphinoxiden und ω‐H‐Perfluorverbindungen

Greiner

Herbst

1987

J. Prakt. Chem.

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Structure‐Dependent Properties of Detergents as Studied at 2‐Alkylsulphates, Phosphine‐oxides, and ω‐H‐Perfluoroalkyl Compounds CMC values from δ/lg c‐curves were determined for the homologous series of 2‐alkyl‐branched alkylsulphates, dimethyl‐ an diethyl‐phosphine‐oxides and ω‐H‐perfluoroalkyl‐sulfosuccinates. On this basis effective chainlengths were calculated and correlated with other properties as maximum of surface tension depression, wettability and foaming.

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Synthesis and Surface Properties of CO₂H Type Gemini Surfactant Having Semifluoroalkyl Group as Hydrophobic Group

Kawase¹,

Ankyu²,

Oida³

2012

Tenside Surfactants Detergents

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Novel CO2H type gemini surfactants having semifluoroalkyl group (Rf-(CH2)n-: Rf = C4F9, C6F13, C8F17 and n = 2, 3) as hydrophobic group were successfully synthesized and their surface properties were studied. (Perfluoroalkyl)ethylmalonic esters were synthesized by the reaction of malonic ester with Rf(CH2)2I using NaH as base in THF/DMF. (Perfluoroalkyl)propylmalonic esters were synthesized from allylmalonic ester, namely by the radical addition of Rf-I using AIBN as initiator, and reduction with Zn/AcOH. Those fluoroalkylated malonic esters were connected using Br(CH2)sBr (s = 3, 4) to give dimeric tetraesters. Then, tetraesters were hydrolyzed using KOH/EtOH followed by decarboxylation in AcOH to afford CO2H type gemini surfactants. To study their surface properties, both surface tension-concentration and surface pressure-area isotherms were measured. As expected, COOH geminis showed one order of magnitude lower critical micellar concentrations (CMC) than that of conventional 1+1 type surfactant. In the surface pressure-area measurements, as length of fluoroalkyl increased, lift-off area (AL) decreased, monolayers were clearly formed upon compression and the limited areas (A∞) for C6F13 and C8F17 were smaller than twice of that of C8F17(CH2)2COOH. Especially, COOH geminis having Rf = C8F17 and -(CH2)3- spacer showed the formation of solid phase monolayers, and the planar five membered ring-like structure was proposed.

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Fluortenside auf der Basis von Telomeralkoholen; Ethersulfate

Cited by 3 publications

References 6 publications

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Strukturabhängige Eigenschaften von Tensiden, untersucht an Reihen von 2‐Alkylsulfaten, Phosphinoxiden und ω‐H‐Perfluorverbindungen

Synthesis and Surface Properties of CO₂H Type Gemini Surfactant Having Semifluoroalkyl Group as Hydrophobic Group

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Fluortenside auf der Basis von Telomeralkoholen; Ethersulfate

Cited by 3 publications

References 6 publications

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Modification of a reverse microemulsion with a fluorinated triblock copolymer

Strukturabhängige Eigenschaften von Tensiden, untersucht an Reihen von 2‐Alkylsulfaten, Phosphinoxiden und ω‐H‐Perfluorverbindungen

Synthesis and Surface Properties of CO2H Type Gemini Surfactant Having Semifluoroalkyl Group as Hydrophobic Group

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Product

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About

Synthesis and Surface Properties of CO₂H Type Gemini Surfactant Having Semifluoroalkyl Group as Hydrophobic Group