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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c02902
|2 doi
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|a DE-627
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|a eng
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|a Masrat, Rohi
|e verfasserin
|4 aut
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|a Interaction of HPC with CTAB and Tween 40 at Water/Air and Water/Soya Oil Interfaces
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 16.02.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a The bulk and interfacial shear rheological behavior of aqueous solutions of biocompatible polymer HPC has been investigated in the presence of cationic CTAB and nonionic Tween 40 having the same chain length but different head groups. Steady-state bulk experiments depict two distinct regions in the rheogram (Newtonian followed by pseudoplastic). Dynamic experiments suggest that the stability of HPC hydrogels decreases with the increase in surfactant concentration. Interfacial steady shear tests of 2D monolayers of 1 wt % HPC and 1 wt % HPC with varying concentrations of Tween 40/CTAB show a non-Newtonian dilatant behavior at the solution-air interface. However, two distinct dilatant regions separated by a Newtonian region were observed for the same films at the solution-soya oil interface. The strength of films formed at the two interfaces decreases with the increase of surfactant concentration as observed from oscillatory interfacial tests. HPC interacts more strongly with CTAB than Tween 40 both in bulk as well as at the interfaces studied
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|a Journal Article
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|a Dar, Aijaz Ahmad
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g (2023) vom: 09. Jan.
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|x 1520-5827
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|g year:2023
|g day:09
|g month:01
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|u http://dx.doi.org/10.1021/acs.langmuir.2c02902
|3 Volltext
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|j 2023
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