Self-assembly and influence of the organic counterion in the ternary systems dodecylamine/acrylic acid/water and dodecylamine/methacrylic acid/water

Hartmann, Patrice C.; Dieudonné, Philippe; Sanderson, Ronald D.

doi:10.1016/j.jcis.2004.10.009

Cited by 23 publications

(17 citation statements)

References 78 publications

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“…[22,23] In contrast, in acidic condition, it is obvious that macroscopic precipitation occurs, instead of stable micelles in aqueous Deac solution, which is reasonable because the carboxyl groups are protonated at this condition and can not stabilize the hydrophobic alkyl moiety. However, it is interesting is that the addition of water-soluble HPC can help to stabilize Deac molecules in acidic aqueous solution.…”

Section: Resultsmentioning

confidence: 99%

The Self‐Assembly of Hydroxypropylcellulose and Carboxyl‐Ended Surfactants to Multi‐Morphological Nanoparticles

Dou

Sun

Yang

2006

Macro Chemistry & Physics

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Summary: The self‐assembly of HPC and carboxyl‐ended surfactants such as Deac was studied in the present paper. Nanoparticles with multi‐morphologies were fabricated from HPC and Deac, and their diameter and morphology can be controlled by adjusting the molar ratio of glucose units and Deac and the environmental pH value. We also demonstrated the ubiquity of fabricating multi‐morphological nanoparticles from HPC and other carboxyl‐ended surfactants by substituting PDFOA for Deac, and it was confirmed by DLS characterization that nanoparticles with multi‐morphologies were formed at pH = 0.1. Thus the proposed approach shows a considerable potential to fabricate polysaccharide‐based multi‐morphological nanoparticles from water‐soluble polysaccharides and carboxyl‐ended surfactants.A schematic illustration of the self‐assembly of HPC and Deac to multi‐morphological nanoparticles.magnified imageA schematic illustration of the self‐assembly of HPC and Deac to multi‐morphological nanoparticles.

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Section: Resultsmentioning

confidence: 99%

The Self‐Assembly of Hydroxypropylcellulose and Carboxyl‐Ended Surfactants to Multi‐Morphological Nanoparticles

Dou

Sun

Yang

2006

Macro Chemistry & Physics

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“…As mentioned, organic counterions favor formation of elongated, worm-like, or rod-like micelles [31][32][33]. Accordingly, it is possible to deduce that the fibers produced in the micellar system are the product of the polymerization of micelles with an elongated arrangement, as proposed by the soft-template model.…”

Section: Morphologymentioning

confidence: 85%

“…The substitution of the small hydrophilic counterion by a voluminous hydrophobic organic counterion results in changes in surfactant micellar behavior. When aromatic counterions are present, transitions from spherical micelles to rodlike, elongated, or wormlike micelles have been reported [30][31][32][33]. Cmc reduction, as a function of organic counterion hydrophobicity, has also been observed [34][35][36].…”

Section: Critical Micellar Concentrationmentioning

confidence: 95%

Diaminium salt as reactive amphiphile for the synthesis of poly(m-phenylenediamine) and paraffin microencapsulation

et al. 2015

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Poly(m-phenylenediamine) (PmPDA) was synthesized via an oxidative polymerization using benzene-1,3-diaminium dodecyl sulfate (P2) as the monomer. P2 is a new concept of reactive surfactant because, unlike conventional polymerizable surfactants where the polymerizable group is a carbon-carbon double bond, therein, the polymer chain propagates through the diaminium group. Polymerization in aqueous micellar solution, chloroform/water interface, and xylene/water emulsion allowed successful synthesis of PmPDA. Infrared and UV-vis spectroscopy revealed that PmPDA share chemical structure, based on phenazine with open segments, rich in quinoid rings (pernigraniline-like), and partially doped, regardless of the method of synthesis. Conversely, electron microscopy exhibited important effect on morphology (nanofibers, pot-like, and globular nanoparticles) as a function of polymerization method and temperature. Additionally, cyclic voltammetry indicated electroactivity in all products, showing reduced/semioxidized and semi-oxidized/oxidized redox transitions with differences concerning synthesis method and temperature. A paraffin/PmPDA core-shell composite was obtained by emulsion polymerization method taking advantage of P2 amphiphilic properties. Electron microscopy evidenced microencapsulation, whereas thermal properties (melting temperature, melting enthalpy, thermal stability, and viscosity as function of temperature) suggested promising properties for the design of form-stable phase change materials.

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“…Diffraction curves were obtained, giving diffracted intensity as a function of the wave vector q. The method used to calculate q is described elsewhere [17].…”

Section: Small Angle X-ray Scattering (Saxs)mentioning

confidence: 99%

“…Above the critical micelle concentration (CMC), surfactants aggregate in micelles, and at higher concentrations they can form lyotropic liquid crystal (LLC) phases [4,[12][13][14][15][16][17][18][19][20][21]. The type of LLC phases (e.g., lamellar, cubic, or hexagonal) can be deduced from the texture observed by polarized optical microscopy (POM).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of new cationic quaternary ammonium polymerizable surfactants

Samakande

Hartmann

Sanderson

2006

Journal of Colloid and Interface Science

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Self-assembly and influence of the organic counterion in the ternary systems dodecylamine/acrylic acid/water and dodecylamine/methacrylic acid/water

Cited by 23 publications

References 78 publications

The Self‐Assembly of Hydroxypropylcellulose and Carboxyl‐Ended Surfactants to Multi‐Morphological Nanoparticles

The Self‐Assembly of Hydroxypropylcellulose and Carboxyl‐Ended Surfactants to Multi‐Morphological Nanoparticles

Diaminium salt as reactive amphiphile for the synthesis of poly(m-phenylenediamine) and paraffin microencapsulation

Synthesis and characterization of new cationic quaternary ammonium polymerizable surfactants

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