Solution Properties and Complexation of Polyampholytes based on <i>N</i>,<i>N</i>‐Dimethyldiallylammonium Chloride and Maleic Acid or Alkyl (Aryl) Derivatives of Maleamic Acids

Ibraeva, Zhanar E.; Hahn, Mathias; Jaeger, Werner; Bimendina, Larisa A.; Kudaibergenov, Sarkyt E.

doi:10.1002/macp.200400242

Cited by 25 publications

(20 citation statements)

References 36 publications

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“…In contrast, amphoteric polymers may exhibit a unique responsiveness to a brine environment 1–3. For a series of regular and water‐soluble polyampholytes based on N , N ′‐dimethyldiallylammonium chloride and maleic acid we have shown19,20 that the viscosity of equimolar polyampholytes at the IEP increases with increasing of neutral salt concentration. This is a result of the disruption of intra‐ and/or interionic contacts between opposite charges.…”

Section: Resultsmentioning

confidence: 87%

“…Earlier the synthetic strategy,12–15 solution properties,16,17 and complexation18–20 ability of water‐soluble copolymers based on allylamine derivatives and maleic acid were considered. It was shown19,20 that the viscosity of polyampholytes increases at the IEP with increasing salt concentration. Such electrolyte‐tolerant polyampholytes are promising as oil‐drilling fluids, for secondary oil recovery, and water desalination where the enhanced viscosification and the ability to absorb brine solution are required.…”

Section: Introductionmentioning

confidence: 99%

“…In the continuation of previous investigations,20 in the present paper we consider the swelling‐deswelling behavior of the amphoteric gel made of maleic acid (MA), N , N ′‐dimethyldiallylammonium chloride (DMDAAC) and diallylamine (DAA) in salt‐containing solutions at various pH as well as in mixtures of water with organic solvents. The ability of the amphoteric gel to form complexes with bivalent metal cations, a cationic drug, an anionic surfactant, and an anionic polyelectrolyte is also reported.…”

Section: Introductionmentioning

confidence: 99%

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Swelling Behavior and Complex Formation Ability of Ternary Amphoteric Gels based on Allylamine Derivatives and Maleic Acid

Ibraeva¹,

Hahn²,

Jaeger³

et al. 2005

Macro Materials & Eng

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Summary: The swelling behavior of an amphoteric gel composed of 50 mol‐% of maleic acid (MA), 25 mol‐% of N,N′‐dimethyldiallylammonium chloride (DMDAAC) and 25 mol‐% of diallylamine (DAA) was studied in aqueous and aqueous‐salt solutions. The isoelectric point (IEP) of the MA‐DMDAAC‐DAA gel determined from swelling experiments was about pH 4.6. Considerable gel swelling with increasing ionic strength was observed at the IEP. Dynamic swelling properties of the amphoteric gel in water with and without added salt were measured at various pH values including the IEP. The swelling behavior of the amphoteric gel was found to depend on the ionization state of the functional groups. It can be described by either a relaxation‐controlled or non‐Fickian (anomalous) mechanism. Swelling‐deswelling properties of the amphoteric gel were also studied in mixtures of water and organic solvents. The amphoteric gel was able to complex sodium poly(styrene sulfonate), sodium lauryl sulfate, the cationic drug richlocain, and the bivalent transition metal ions Cu2+, Ni2+, Co2+, and Zn2+. The sorption of polyelectrolyte, surfactant, drug, and metal ions by the amphoteric gel is accompanied by the contraction of the gel network. Partial release of the cationic drug molecules entrapped into the gel volume takes place at the IEP of the amphoteric gel with low activation energy, while neither the anionic polyelectrolyte nor the surfactants are released from the gel interior at the IEP. The swelling‐shrinking behavior of gel‐polyelectrolyte and gel‐surfactant complexes in dependence of pH and ionic strength of the outer solution is similar.

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Swelling Behavior and Complex Formation Ability of Ternary Amphoteric Gels based on Allylamine Derivatives and Maleic Acid

Ibraeva¹,

Hahn²,

Jaeger³

et al. 2005

Macro Materials & Eng

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“…A copolymer of N,N-dimethyldiallylammonium and alkyl (or aryl) derivatives of maleamic acids (abbreviated as APA series in dependence of the length of the hydrophobic moieties of maleamic acid) were involved into the complexation with PAA and poly(styrene sodium sulfonate) (NaPSS) [123] (Scheme 4) Scheme 4. The repeating units of APA (Alkyl (or aryl) polyampholytes) series, where R = H (APA-1); C4H9 (APA-2); C6H5 (APA-3); C6H5(CH2)3CH3 (APA-4) (Reprinted from [123]).…”

Section: Interpolyelectrolyte Complexes Of Polyampholytesmentioning

confidence: 99%

Intra- and Interpolyelectrolyte Complexes of Polyampholytes

Kudaibergenov

Nuraje

2018

Preprint

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At present, a large amount of research works from experimental and theoretical points of view have been done on interpolyelectrolyte complexes formed by electrostatic interactions and/or interpolymer complexes stabilized by hydrogen bonds. On the contrary, relatively less attention has been given to polymer-polymer complex formation with synthetic polyampholytes. In this review the complexation of polyampholytes with polyelectrolytes is considered from theoretical and application points of view. Formation of intra- and interpolyelectrolyte complexes of random, regular, block, dendritic polyampholytes are outlined. The separate subchapter is devoted to amphoteric behavior of interpolyelectrolyte complexes. The realization of so-called “isoelectric effect” for interpolyelectrolyte complexes of water-soluble polyampholytes, amphoteric hydrogels and cryogels with respect to surfactants, dye molecules, polyelectrolytes and proteins is demonstrated.

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“…In this context the net charge and thus the conformation can be influenced via the sequence of the monomer units as well as the pH, the ionic strength and the temperature 4. By changing one of these parameters different structural transitions7, 8 can be promoted that may be of interest for special dynamic systems. A charge imbalance can lead to necklace‐like structures in water, whereas a low charge density (weak electrostatic forces) promotes a Gaussian conformation.…”

Section: Introductionmentioning

confidence: 99%

The Electrostatic Origin of Low‐Hydration Polymorphism in DNA

Mazur

2008

ChemPhysChem

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In recent years, significant progress has been made towards uncovering the physical mechanisms of low-hydration polymorphism in double-helical DNA. The effect appears to be mechanistically similar in different biological systems, and it is due to the ability of water to form spanning H-bonded networks around biomacromolecules via a quasi-two-dimensional percolation transition. In the case of DNA, disintegration of the spanning H-bonded network leads to electrostatic condensation of DNA strands because, below the percolation threshold, water loses its high dielectric permittivity, whereas the concentration of neutralizing counterions becomes high. In this Concept article arguments propose that this simple electrostatic mechanism represents the universal origin of low-hydration polymorphism in DNA.

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Solution Properties and Complexation of Polyampholytes based on N,N‐Dimethyldiallylammonium Chloride and Maleic Acid or Alkyl (Aryl) Derivatives of Maleamic Acids

Cited by 25 publications

References 36 publications

Swelling Behavior and Complex Formation Ability of Ternary Amphoteric Gels based on Allylamine Derivatives and Maleic Acid

Swelling Behavior and Complex Formation Ability of Ternary Amphoteric Gels based on Allylamine Derivatives and Maleic Acid

Intra- and Interpolyelectrolyte Complexes of Polyampholytes

The Electrostatic Origin of Low‐Hydration Polymorphism in DNA

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