The interaction between PEO-PPO-PEO triblock copolymers and ionic surfactants in aqueous solution studied using light scattering and calorimetry

Article Abstract:

The association of sodium docecyl sulfate (SDS) and PEO-PEO-PEO copolymers, and several methods such as nuclear magnetic resonance (NMR), fluorescence spectroscopy, various scattering techniques, and calorimetry are used to discuss their interaction. It is concluded that at the concentration the copolymer micelles start to disintegrate with the accompanied rehydration of the PPO blocks and a small surfactant-rich complex is formed.

Science & research, All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Sodium Sulfate, Sodium Sulfates, Research, Nuclear magnetic resonance, Copolymers

---

Self-assembly in a catanionic mixture with an aminoacid-derived surfactant: From mixed micelles to spontaneous vesicles

Article Abstract:

A study investigates the ability of a novel lysine-derived surfactant with a gemini-like architecture, designated 12-Lys-12, to form in aqueous solution, catanionic vesicles with an oppositely charged synthetic surfactant. Results show that in a dodecyltrimethylammonium bromide (DTAB)-rich side micelle-to-vesicle transition takes place via a discontinuous process, involving first limited micellar growth and then phase separation.

Observations, Transmission electron microscopes, Micelles, Structure, Polarization (Light)

---

Small-angle X-ray scattering, light scattering, and NMR study of PEO-PPO-PEO triblock copolymer/cationic surfactant complexes in aqueous solution

Article Abstract:

A study is carried out on the formation of triblock copolymer/surfactant complex by mixing a nonionic pluronic polymer (PEO-PPO-PEO) with a cationic surfactant, hexadecyltrimethylammonium (CTAC). The studied copolymer (denoted P123, EO(sub 20)PO(sub 68)EO(sub 20)) forms micelles with a radius of 10 nm and a molecular weight of 7.5 x 10(super 5).

Surface active agents, Surface Active Agent Manufacturing, Nonionic Surfactants, X-rays, X-ray diffraction, Spectra, Block copolymers, Properties

Similar abstracts:

• Abstracts: Determination of a hydroxyl conformation in aqueous xylose using neutron scattering and molecular dynamics. Dynamics of water molecules in glucose solutions
• Abstracts: Ordering transition of block copolymer films. Aggregation of ionic surfactants to block copolymer assemblies: A simple fluorescence spectral study
• Abstracts: Self-assembly of amphiphilic ABC star triblock copolymers and their blends with AB diblock copolymers in solution: Self-consistent field theory
• Abstracts: Effects of cations on the hydrogen bond network of liquid water: New results from X-ray absorption spectroscopy of liquid microjets
• Abstracts: Divide and protect: Capping gold nanoclusters with molecular gold-thiolate rings. Size control of semimetal bismuth nanoparticles and the UV-visible and IR absorption spectra

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.