Phase behavior and surface tensions of amphiphilic fluorinated random copolymer aqueous solutions

Sharma, Suraj Chandra; Acharya, Durga P.; García-Román, Miguel; Itami, Yasuo; Kunieda, H.

doi:10.1016/j.colsurfa.2006.01.047

Cited by 17 publications

(19 citation statements)

References 24 publications

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“…[25] Among various types of hydrophobic groups, perfluorinated carbon chains are the most hydrophobic and their tendency to separate from water or hydrophilic groups is the largest. [26] It was reported that for non-ionic surfactants, one CF 2 group is equivalent to 1.7 CH 2 groups. [27] Fluorocarbon-modified water soluble polymers are expected to exhibit unique properties in aqueous solution due to their high hydrophobicity.…”

Section: Introductionmentioning

confidence: 99%

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a

Kyeremateng

Fuchise

et al. 2009

Macro Chemistry & Physics

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Two hydrophobically modified PNIPAM semitelechelics PxF9 were prepared by “clicking” PNIPAM containing an azide endgroup (PxN3) with nonadecafluoro‐1‐decyl hex‐5‐ynoate (F9). Micelles of PxF9 in water with a core of F9‐segments and a PNIPAM corona were detected by dynamic light scattering and by 1H and 19F NMR spectroscopy below the LCST. Just below the LCST, the PNIPAM chains start to collapse onto the F9 core followed by aggregation of several collapsed micelles to large particles in the range of ≈110 nm. The F9 segments shifted the LCST to lower temperatures when comparing PxN3 with PxF9. The existence of micelles in PxF9 solutions also improved the reversibility of the LCST behavior as measured by DSC.

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Section: Introductionmentioning

confidence: 99%

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a

Kyeremateng

Fuchise

et al. 2009

Macro Chemistry & Physics

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“…This may be due to very high hydrophobicity of fluorinated segments [41]. As it was known that fluorinated segments were quite hydrophobic and their tendency to separate from water and hydrophilic groups was among the strongest [42,43]. Fluorinated segments of FBSi-2 would undergo rapid constriction and move from the interface when the polymer surface contacts with water in order to minimize the interfacial free energy [22], that was, FBSi-2 had two hydrophobic blocks (HFMA and PTMSPMA block) while EBSi-2 had only one (PTMSPMA block).…”

Section: Self-assembly Behaviors Of the Block Copolymersmentioning

confidence: 98%

Synthesis and properties of cross-linkable block copolymer end-capped with 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate

Sun

Liu

2011

J Polym Res

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A series of novel cross-linkable copolymers 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate-poly (isobutyl methacrylate)-b-poly [3-(trimethoxysilyl)propyl methacrylate] (HFMA-PIBMA-b-PTMSPMA) were synthesized via atom transfer radical polymerization (ATRP). The synthesis and structure of the polymers were characterized by gel permeation chromatography (GPC), Fourier transform infrartd (FTIR) and 1 H nuclear magnetic resonance (NMR). The properties of HFMA-PIBMA-b-PTMSPMA and the corresponding copolymers end-capped with nonfluorinated acrylate were comparatively studied by contact angle, transmission electron micrograph (TEM), and dynamic light scattering (DLS) measurement. The results indicated that the surface properties and self-assembly behaviors of HFMA-PIBMA-b-PTMSPMA were changed greatly by the introducing of only one fluorinated acrylate. Finally, the transparent solid materials with a slightly blue color were obtained based on the cross-linked behaviors of HFMA-PIBMA-b-PTMSPMA and fracture surfaces of the materials were exhibited by scanning electron microscopy (SEM).

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“…The interaction of hydrophobic associations between fluorocarbon groups is stronger than that of the corresponding hydrocarbon groups of the same carbon chain length because of lower cohesive energy density and sur-폴리머, 제39권 제3호, 2015년 face energy of fluorocarbon groups. 24 Kramer and Steber reported that the hydrophobicity of -CF 2 -group was equivalent to 1.7 times of that of -CH 2 -group. 25 It is generally accepted that the solution of fluorinated water soluble polymers have low surface tension and better hydrophobic associations, which are extremely important for the heat resistance and salt tolerance of flooding polymer.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Solution Properties of Fluorinated Amphiphilic Polyacrylamide

Zhao¹,

Du²,

Yi³

et al. 2015

Polymer Korea

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A series of hydrophobically associating fluorinated amphiphilic polyacrylamide copolymers with remarkably high heat resistance and salt tolerance were synthesized by free radical micellar copolymerization, using acrylamide (AM) and sodium 2-acrylamido-tetradecane sulfonate (AMC 14 S) as amphiphilic monomers, and 2-(perfluorooctyl) ethyl acrylate (PFHEA) as hydrophobic monomer. The structure of the terpolymer was characterized by FTIR, 1 H NMR and 19 F NMR. The solution properties of the terpolymers were investigated in details, and the results showed that the terpolymer solution had strong intermolecular hydrophobic association as the concentration exceeded the critical association concentration 1.5 g/L. The terpolymer solution possessed high surface activity, viscoelasticity, excellent heat resistance, salt tolerance and shearing resistance. The viscosity retention rate of copolymer solution was as high as 59.9% under the condition of fresh wastewater, 85 o C and a 60-days aging test.

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Phase behavior and surface tensions of amphiphilic fluorinated random copolymer aqueous solutions

Cited by 17 publications

References 24 publications

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a

Synthesis and properties of cross-linkable block copolymer end-capped with 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate

Synthesis and Solution Properties of Fluorinated Amphiphilic Polyacrylamide

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Phase behavior and surface tensions of amphiphilic fluorinated random copolymer aqueous solutions

Cited by 17 publications

References 24 publications

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Watera

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Watera

Synthesis and properties of cross-linkable block copolymer end-capped with 2, 2, 3, 4, 4, 4-hexafluorobutyl methacrylate

Synthesis and Solution Properties of Fluorinated Amphiphilic Polyacrylamide

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Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a

Aggregation Behavior of Poly(N‐isopropylacrylamide) Semitelechelics with a Perfluoroalkyl Segment in Water^a