Detail publikace

INTERACTIONS OF DEAED-DIETHYLAMINOETHYL DEXTRAN HYDROCHLORIDE AND SODIUM DODECYL SULFATE IN THE RESEARCH OF HYDROGELS

Originální název

INTERACTIONS OF DEAED-DIETHYLAMINOETHYL DEXTRAN HYDROCHLORIDE AND SODIUM DODECYL SULFATE IN THE RESEARCH OF HYDROGELS

Anglický název

INTERACTIONS OF DEAED-DIETHYLAMINOETHYL DEXTRAN HYDROCHLORIDE AND SODIUM DODECYL SULFATE IN THE RESEARCH OF HYDROGELS

Jazyk

en

Originální abstrakt

Polyelectrolytes are able to interact with oppositely charged surfactants via electrostatic forces. In these highly interacting systems a strong electrostatic attraction between the individual components occurs. After exceeding the critical aggregation concentration (CAC) that is significantly smaller than the critical micellization concentration (CMC) of the surfactant in solution, the aggregates begin to form. The main aim of this study was to describe the initial formation of the interaction in polyelectrolyte-surfactant system and to identify the state, which precedes the formation of the hydrogel. For this study a cationic polysaccharide diethylaminoethyl-dextran hydrochlorid (DEAED) and anionic surfactant sodium dodecyl sulfate (SDS) were used. The formation of the interactions between DEAED and SDS was studied by the light scattering based techniques using Zetasizer Nano ZS (Malvern Instruments), high resolution ultrasonic spectroscopy (HR-US, Ultrasonic scientific) and densitometry (DSA 5000M, Anton Paar). Moreover, the thermodynamic parameters of aggregation process were tested by micro-calorimetric titrations using a modular microcalorimeter TAM III (TA Instruments).

Anglický abstrakt

Polyelectrolytes are able to interact with oppositely charged surfactants via electrostatic forces. In these highly interacting systems a strong electrostatic attraction between the individual components occurs. After exceeding the critical aggregation concentration (CAC) that is significantly smaller than the critical micellization concentration (CMC) of the surfactant in solution, the aggregates begin to form. The main aim of this study was to describe the initial formation of the interaction in polyelectrolyte-surfactant system and to identify the state, which precedes the formation of the hydrogel. For this study a cationic polysaccharide diethylaminoethyl-dextran hydrochlorid (DEAED) and anionic surfactant sodium dodecyl sulfate (SDS) were used. The formation of the interactions between DEAED and SDS was studied by the light scattering based techniques using Zetasizer Nano ZS (Malvern Instruments), high resolution ultrasonic spectroscopy (HR-US, Ultrasonic scientific) and densitometry (DSA 5000M, Anton Paar). Moreover, the thermodynamic parameters of aggregation process were tested by micro-calorimetric titrations using a modular microcalorimeter TAM III (TA Instruments).

BibTex


@misc{BUT153319,
  author="Sabína {Jarábková} and Michal {Kalina} and Andrea {Hurčíková} and Jitka {Krouská} and Miloslav {Pekař}",
  title="INTERACTIONS OF DEAED-DIETHYLAMINOETHYL DEXTRAN HYDROCHLORIDE AND SODIUM DODECYL SULFATE IN THE RESEARCH OF HYDROGELS",
  annote="Polyelectrolytes are able to interact with oppositely charged surfactants via electrostatic forces. In these highly interacting systems a strong electrostatic attraction between the individual components occurs. After exceeding the critical aggregation concentration (CAC) that is significantly smaller than the critical micellization concentration (CMC) of the surfactant in solution, the aggregates begin to form. 
The main aim of this study was to describe the initial formation of the interaction in polyelectrolyte-surfactant system and to identify the state, which precedes the formation of the hydrogel. For this study a cationic polysaccharide diethylaminoethyl-dextran hydrochlorid (DEAED) and anionic surfactant sodium dodecyl sulfate (SDS) were used. The formation of the interactions between DEAED and SDS was studied by the light scattering based techniques using Zetasizer Nano ZS (Malvern Instruments), high resolution ultrasonic spectroscopy (HR-US, Ultrasonic scientific) and densitometry (DSA 5000M, Anton Paar). Moreover, the thermodynamic parameters of aggregation process were tested by micro-calorimetric titrations using a modular microcalorimeter TAM III (TA Instruments).
",
  address="TANGER Ltd., Keltickova 62, 710 00 Ostrava, Czech republic, EU",
  booktitle="NANOCON 2018 - Abstracts",
  chapter="153319",
  edition="1st.",
  howpublished="online",
  institution="TANGER Ltd., Keltickova 62, 710 00 Ostrava, Czech republic, EU",
  year="2018",
  month="october",
  pages="106--106",
  publisher="TANGER Ltd., Keltickova 62, 710 00 Ostrava, Czech republic, EU",
  type="abstract"
}