Behaviour of MAn-based polyelectrolytes in water solutions: Influence of pH and ionic strength

Štaudner, E.

doi:10.1016/0014-3057(95)00160-3

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…For example, hydrolyzed and neutralized MAH‐containing copolymers form an important class of polyelectrolytes with many industrial applications. The solution properties of these copolymers have been intensively studied . The dissociation behavior of a series of MAH‐derived copolymers was studied by Colby et al A two‐step dissociation process corresponding to the dissociation of the two adjacent carboxylic acids from enchained MAH units was observed in aqueous CaCl 2 (0.02 N) solution for most of the maleic acid‐containing copolymers .…”

Section: Introductionmentioning

confidence: 99%

Solution properties of stilbene‐containing sterically crowded alternating polyanions

Savage

Zhou

et al. 2013

J Polym Sci B Polym Phys

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Sterically crowded stilbene-containing alternating polyanions were prepared via an indirect strategy of synthesizing "protected" monomers followed by deprotection and neutralization of the polyanion precursors. The solution properties of these new sterically crowded polyelectrolytes were studied. Steady-state solution shear rheology showed a pronounced polyelectrolyte effect. The persistence lengths of these polyelectrolytes were determined. The dissociation behavior of the polyanions was investigated by pH titration with HCl, and multistep dissociation behavior was observed. Chain size and aggregation were studied by using DLS at varying ionic strengths. Polyelectrolytes behaved like rigid-rods and formed concentrated solutions at the polymer concentration of 1.0 mg mL 21.

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Section: Introductionmentioning

confidence: 99%

Solution properties of stilbene‐containing sterically crowded alternating polyanions

Savage

Zhou

et al. 2013

J Polym Sci B Polym Phys

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“…We will refer to these copolymers as XMA, where X and MA stand for a hydrophobic monomer and maleic anhydride, respectively. In water, the hydrophobic moieties (X) of these copolymers associate, forming hydrophobic insoluble microdomains, which are stabilized in solution by the negatively charged carboxylate anions. , …”

Section: Introductionmentioning

confidence: 99%

“…There are surprisingly sparse reports describing the physical properties of XMA in aqueous solution despite their important commercial sales. −,− , In this study, we investigate the effect of polymer composition and degree of neutralization on the properties of copolymers of styrene−maleic anhydride (SMA) in aqueous solution. SMA copolymers are sold as polymeric surfactants.…”

Section: Introductionmentioning

confidence: 99%

Rigid Interior of Styrene−Maleic Anhydride Copolymer Aggregates Probed by Fluorescence Spectroscopy

Claracq¹,

Santos²,

Duhamel³

et al. 2002

Langmuir

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Several fluorescence techniques have been applied to characterize the aggregates of styrene-maleic anhydride copolymers (SMA). The formation of hydrophobic microdomains was confirmed by monitoring the I1/I3 ratios of pyrene dissolved in SMA solutions. Fluorescence quenching experiments indicate that protective quenching is occurring. The excimer-to-monomer ratio of di(1-pyrenylmethyl) ether and stoppedflow fluorescence measurements show that the interior of these SMA aggregates is extremely rigid, much more than that of typical surfactant micelles. Fluorescence anisotropy was applied to determine the hydrodynamic radius of these aggregates which was found to equal 1.7 ( 0.2 nm, in qualitative agreement with earlier measurements by small-angle X-ray scattering and small-angle neutron scattering. SMA aggregates have sizes similar to that of typical surfactant micelles, but their interior is frozen.

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“…37 The content of the MA units in the RCPFs was determined by the potentiometric back titration of carboxyl groups. 38 The 1 H NMR spectra of the RCPFs were recorded on a Fourier 300 NMR spectrometer ( 1 H; 300 MHz; Bruker Biospin) at 295 K in methanol-d 4 .…”

Section: Discussionmentioning

confidence: 99%

“…The content of acrylamide units in the RCPFs was estimated from the elemental analysis ([N]) by the Dumas method 37 . The content of the MA units in the RCPFs was determined by the potentiometric back titration of carboxyl groups 38 …”

Section: Methodsmentioning

confidence: 99%

Synthesis of reactive copolymers with peroxide functionality for cross‐linking water‐soluble polymers

Serdiuk

Shevchuk

Kovalenko

et al. 2022

J of Applied Polymer Sci

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A series of reactive copolymers with peroxide functionality (RCPFs) were synthesized via radical copolymerization of monomer mixtures in an organic solvent comprised of a peroxide monomer 5-(tert-butyl peroxy)-5-methylhex-1-en-3-yne, acrylamide, maleic anhydride, and butyl methacrylate. Peroxide functionality allows the RCPFs to initiate a variety of radical processes, including cross-linking of organic polymers. Hydrophilic monomer subunits (acrylamide and maleic anhydride) within the RCPF macromolecules promote cross-linking of water-soluble polymers. We aimed to investigate RCPF comonomer ratio and its effects on copolymerization kinetics and composition, as well as physico-chemical and colloidal properties. We also evaluated and characterized the kinetic parameters of the thermal decomposition of peroxide moieties in the synthesized RCPF. Findings revealed that RCPF possessed surface-active properties and reduced surface tension at its aqueous solutionair interface. The data indicated that the decomposition process complied with the first-order kinetics, and complex thermal analysis confirmed the presence of peroxide moieties. RCPFs' ability to cross-link water-soluble polymers was demonstrated on poly(acrylamide) and poly(vinyl alcohol).

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Behaviour of MAn-based polyelectrolytes in water solutions: Influence of pH and ionic strength

Cited by 8 publications

References 19 publications

Solution properties of stilbene‐containing sterically crowded alternating polyanions

Solution properties of stilbene‐containing sterically crowded alternating polyanions

Rigid Interior of Styrene−Maleic Anhydride Copolymer Aggregates Probed by Fluorescence Spectroscopy

Synthesis of reactive copolymers with peroxide functionality for cross‐linking water‐soluble polymers

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