Linear Viscoelastic Behavior of Perfluorooctyl Sulfonate Micelles Stabilized with Tetraethylammonium and Tetramethylammonium Cations
スポンサーリンク
概要
- 論文の詳細を見る
For a series of aqueous solutions of perfluorooctyl sulfonate (C8F17SO3−; abbreviated as FOS) micelles having a mixture of tetraethylammonium (N+(C2H5)4; TEA) and tetramethylammonium (N+(CH 3)4; TMA) ions as the counter cations, linear viscoelastic behavior was examined at 20°C. The solutions had the same FOS concentration (0.045 mol L−1) and various TEA fraction in the counter cations, φTEA = 0 − 1, and the spherical FOS micelles therein were connected into threads and further organized into dendritic networks. For φ TEA ≥ 0.5, the FOS threads/networks exhibited the Maxwell-type terminal relaxation reflecting their thermal scission. In this range of φTEA, the terminal relaxation time τ increased with decreasing φTEA while the steady state compliance Je was insensitive to φTEA. On a further decrease of φTEA below 0.3, τ became insensitive to φTEA and Je gradually increased possibly because the motion of the threads in the unscissored form became faster than the thermal scission to govern the terminal relaxation.These rheological features were discussed in relation to the effects of TEA and TMA on the thermal scission of the FOS threads/networks: Since the charge was the same for TMA and TEA but the bare radius was smaller for TMA, the TMA cations should be preferentially bound on the FOS thread. The thermal scission of the FOS thread, occurring through an exchange of the bound and non-bound TEA cations (Watanabe et al., Rheol Acta, 28, 110 (2000)), appeared to be strongly suppressed by the preferentially bound TMA cations that effectively blocked the exchanging sites. Indeed, in a range of φTEA ≥ 0.5 where the thermal scission governed the relaxation of the system, the rheological data were well described by a simple model considering this blocking effect.
- 一般社団法人 日本レオロジー学会の論文
- 2004-09-15
著者
-
Watanabe Hiroshi
Institute For Chemical Research Kyoto University
-
Mori Takuya
Institute For Chemical Research Kyoto University
関連論文
- Xanthine Oxidase Inhibitory Activity of Vietnamese Medicinal Plants(Pharmacognosy)
- Investigation on traditional medicine in Myanmar and Vietnam
- Viscoelastic Properties of Poly(vinyl chloride) Gels : Effect of Plasticizer Type
- Dielectric Behavior of PVC Gels and Sols in Dioctyl Phthalate
- Anticonvulsant Activity of Paeonimetabolin-I Adducts Obtained by Incubation of Paeoniflorin and Thiol Compounds with Lactobacillus brevis
- Primitive chain network simulations of conformational relaxation for individual molecules in the entangled state (2) Retraction from stretched states (計算機レオロジー特集号)
- Primitive Chain Network Simulations of Conformational Relaxation for Individual Molecules in the Entangled State
- Primitive Chain Network Simulations on Dielectric Relaxation of Linear Polymers under Shear Flow
- Apparatus for Small-Angle Neutron Scattering and Rheological Measurements under Sheared Conditions
- Wild Ginseng Grows in Myanmar
- Nonlocal Unitary Transformation and Haldane State in S=1/2 Antiferromagnetic Ladder Model
- Positron Lifetime in C_/C_ Powder
- Rheo-SANS Study of an Aqueous Suspension of Poly(Methyl Methacrylate-co-Styrene) Particle
- Rheology of Aqueous Suspensions of Polystyrene Particles with Bimodal Radius Distribution
- Kinetics of Living Anionic Polymerization of Polystyrenyl Lithium in Cyclohexane
- Highly Isotactic Poly(vinyl alcohol) Derived from tert-Butyl Vinyl Ether V. Viscoelastic Behavior of Highly Isotactic Poly(vinyl alcohol) Films
- Kinetics of Anionic Polymerization of Polybutadienyl Lithium in Benzene : An Osmotic Effect on Propagation Process
- A Note for Kohlrausch-Williams-Watts Relaxation Function
- Thermal, Structural, and Viscoelastic Characterization of cis-Poly(phenylene vinylene) Related to its Photo-Isomerization
- Stress Overshoot in Shear Flow of an Entangled Polymer with Bimodal Molecular Weight Distribution
- Efficient Implementations of Molecular Dynamics Simulations for Lennard-Jones Systems(General and Mathematical Physics)
- Dynamics of Monofunctional Polybutadienyl Lithium Chains Aggregated in Benzene
- Viscoelastic Behavior of Scarcely Crosslinked Poly(dimethyl siloxane) Gel : 3. Examination of Gelation Process
- Nonlinear Mechanical Behavior of Scarcely Crosslinked Poly(dimethyl siloxane) Gel : Effect of Strand Length Polydispersity
- Primitive Chain Network Simulations on Dielectric Relaxation of Linear Polymers under Shear Flow
- Rheo-SANS Study of an Aqueous Suspension of Poly (Methyl Methacrylate-co-Styrene) Particle
- Rheology of Aqueous Suspensions of Polystyrene Particles with Bimodal Radius Distribution
- Effects of Self-efficacy on Adjustment to College
- S=1/2 Quantum Heisenberg Ladder and S=1 Haldane Phase
- Linear Viscoelastic Behavior of Perfluorooctyl Sulfonate Micelles Stabilized with Tetraethylammonium and Tetramethylammonium Cations
- Dielectric Behavior of cis-Polyisoprene in Carbon Dioxide under High Pressure
- Viscoelastic Mode Distribution of Moderately Entangled Linear Polymers
- Rheological and Dielectric Behavior of Polyisoprene under Pressurized Carbon Dioxide
- Chain Relaxation Time in ABS Polymer Melts
- Magnetorheological Behavior of Polyethyene Glycol-Coated Fe_3O_4 Ferrofluids
- Viscoelastic Relaxation of Linear Polyisoprenes : Examination of Constraint Release Mechanism
- Effect of Solvent Quality on Stability of Diblock Copolymer Micellar Lattice
- Effect of Surface Treatments on Viscoelastic Measurements of Thread-like Micellar Solutions
- Multiple Representation of Linear Dielectric Response
- Viscoelastic Behavior of Scarcely Crosslinked Poly(dimethyl siloxane) Gels : 2. Effects of Sol Component and Network Strand Length
- Viscoelastic Behavior of Scarcely Crosslinked Poly(dimethyl siloxane) Gel
- Dynamic Tube Dilation in Branched Polymers(Non Equilibrium Soft Matter)
- Further Investigation of Equilibrium Modulus of Diblock Copolymer Micellar Lattice
- Creep Behavior for Combined Rouse-Reptation Mechanism
- A Note for Kohlrausch-Williams-Watts Relaxation Function
- Dynamics in miscible blends of polyisoprene and poly(p-tert-butyl styrene): thermo–rheological behavior of components
- Rheology of Aqueous Solution of Hydrophobically Modified Ethoxylated Urethane (HEUR) with Fluorescent Probes at Chain Ends: Thinning Mechanism
- Hydrogen and carbon isotope of fractionation by thermophilic hydrogenotrophic methanogens from a deep aquifer under coculture with fermenters
- Stereochemical studies of the hydrogenation with asymmetrically modified nickel catalysts; the hydrogenation of methyl 2-alkyl-3-oxobutyrate.
- Rheology of Aqueous Solution of Hydrophobically Modified Ethoxylated Urethane (HEUR) with Fluorescent Probes at Chain Ends : Thinning Mechanism
- Effects of Essence of Chicken on Cognitive Brain Function : A Near-Infrared Spectroscopy Study