NDLI: Hydrotrope-Induced Enhancement of Room Temperature Surface Activity for High Krafft Point Fluorinated Surfactants

Content Provider	Springer Nature Link
Author	Zhou, Hong Tao Xing, Hang Wu, Bo Wan Cao, An Qing Xiao, Jin Xin
Copyright Year	2016
Abstract	Potassium perfluorooctane sulfonate (KPFOS) and sodium perfluorooctane sulfonate (NaPFOS) exhibit poor surface activities in aqueous solution at room temperature because of their high Krafft points. In this work, we attempted to increase the solubility of KPFOS and NaPFOS and consequently improve their surface activities at room temperature with sodium p-methylbenzene sulfonate (BS) and urea, which are typical hydrotropes in industrial applications. The effects of BS and urea on the surface tension of the aqueous solutions of KPFOS and NaPFOS were investigated at 25 °C. When the hydrotropes were added, the effectiveness of KPFOS and NaPFOS in surface tension reduction was greatly enhanced and KPFOS showed higher efficiency in surface tension reduction than NaPFOS. On the other hand, BS had much stronger ability than urea to reduce the surface tension of KPFOS and NaPFOS in water. In particular, with the assistance of BS the minimum surface tension of KPFOS approached 19 mN/m at 25 °C. It was worth noting that in the presence of BS, the surface tension of an apparently “saturated” solution (i.e., with coexisting surfactant solid) continuously decreased with increasing surfactant concentration. This behavior was ascribed to enrichment of branched PFOS isomers in aqueous phase with the assistance of BS, as evidenced by high-resolution $^{19}$F NMR. Hydrotropes were able to recover the inherent character of KPFOS and NaPFOS as highly surface-active fluorinated surfactants by increasing the solubility of branched isomers. This is an easy way to enhance the effectiveness in surface tension reduction at room temperature for fluorinated surfactants with high Krafft points.
Starting Page	1199
Ending Page	1207
Page Count	9
File Format	PDF
ISSN	10973958
Journal	Journal of Surfactants and Detergents
Volume Number	19
Issue Number	6
e-ISSN	15589293
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-09-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Perfluorooctylsulfonate Fluorocarbon surfactant Sodium p-toluenesulfonate Additive Hydrotropic agent Industrial Chemistry/Chemical Engineering Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Surfaces and Interfaces, Thin Films Polymer Sciences Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Surfaces, Coatings and Films Physical and Theoretical Chemistry Chemical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hydrotropic and surfactant properties of novel diisopropyl naphthalene sulfonates

Effect of cefoperazone sodium on the physicochemical properties of surfactants

Additive-induced association in unconventional systems: A case of the hydrotrope

Synthesis and Properties of Dissymmetric Gemini Surfactants ( Journal of Surfactants and Detergents , Volume 16 , Issue 6 )

Hydrotropic properties of a novel alkylnaphthalene sulfonate

Preparation and Application of Fluorinated Cationic Surfactants

Synthesis and Some Properties of Fluorinated Cationic Surfactants

Surface Activity Properties and Aggregation Behaviors of Partially Fluorinated Gemini Surfactants in Aqueous Solution

Synergistic solubilization of decafluorobiphenyl by micelles of fluorocarbon surfactants

Hydrotrope-Induced Enhancement of Room Temperature Surface Activity for High Krafft Point Fluorinated Surfactants

Similar Documents

Hydrotropic and surfactant properties of novel diisopropyl naphthalene sulfonates

Effect of cefoperazone sodium on the physicochemical properties of surfactants

Additive-induced association in unconventional systems: A case of the hydrotrope

Synthesis and Properties of Dissymmetric Gemini Surfactants ( Journal of Surfactants and Detergents , Volume 16 , Issue 6 )

Hydrotropic properties of a novel alkylnaphthalene sulfonate

Preparation and Application of Fluorinated Cationic Surfactants

Synthesis and Some Properties of Fluorinated Cationic Surfactants

Surface Activity Properties and Aggregation Behaviors of Partially Fluorinated Gemini Surfactants in Aqueous Solution

Synergistic solubilization of decafluorobiphenyl by micelles of fluorocarbon surfactants

Hydrotrope-Induced Enhancement of Room Temperature Surface Activity for High Krafft Point Fluorinated Surfactants