1
|
Sanger M, Barker D, Jessop PG. Simultaneous switching of two different CO 2-switchable amines in the same solution. Phys Chem Chem Phys 2024; 26:11406-11413. [PMID: 38592846 DOI: 10.1039/d4cp00392f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Most CO2-responsive systems operate by using a base in water that is expected to be mostly deprotonated when under an atmosphere of air and mostly protonated under an atmosphere of CO2. This concept has led to the development of many different CO2-responsive materials such as solvents, polymers, surfactants, and solutes. As CO2-responsive materials research continues, more complex systems may be developed, including systems containing two different bases with different basicities. Understanding the influence each base has on the protonation equilibrium of the other base is important for designing systems in which effective deprotonation and protonation occur. This article presents a model that can predict the solution pH and the % protonation of two different bases at various concentrations under air and CO2. Experimental data was collected to demonstrate the successful simultaneous switching of two amines and to evaluate the accuracy of the predictive model. The simultaneous switching of two different CO2-switchable amines in the same solution was determined to be possible but only if the amine concentrations and basicities are within certain ranges, and only if the pKaH values of the two bases differ by no more than 3 units.
Collapse
Affiliation(s)
- Matthew Sanger
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 2S8.
| | - Daniel Barker
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 2S8.
| | - Philip G Jessop
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario, Canada K7L 2S8.
| |
Collapse
|
2
|
Tang J, Cheng Y, Ding M, Wang C. Bio-Inspired Far-From-Equilibrium Hydrogels: Design Principles and Applications. Chempluschem 2023; 88:e202300449. [PMID: 37787015 DOI: 10.1002/cplu.202300449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
Inspired from dynamic living systems that operate under out-of-equilibrium conditions in biology, developing supramolecular hydrogels with self-regulating and autonomously dynamic properties to further advance adaptive hydrogels with life-like behavior is important. This review presents recent progress of bio-inspired supramolecular hydrogels out-of-equilibrium. The principle of out-of-equilibrium self-assembly for creating bio-inspired hydrogels is discussed. Various design strategies have been identified, such as chemical-driven reaction cycles with feedback control and physically oscillatory systems. These strategies can be coupled with hydrogels to achieve temporal and spatial control over structural and mechanical properties as well as programmable lifetime. These studies open up huge opportunities for potential applications, such as fluidic guidance, information storage, drug delivery, actuators and more. Finally, we address the challenges ahead of us in the coming years, and future possibilities and prospects are identified.
Collapse
Affiliation(s)
- Jiadong Tang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, China
| | - Yibo Cheng
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Muhua Ding
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Chen Wang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, China
| |
Collapse
|
3
|
Cunningham MF, Jessop PG. CO 2-Switchable colloids. Chem Commun (Camb) 2023; 59:13272-13288. [PMID: 37872815 DOI: 10.1039/d3cc03929c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The development and design of CO2-switchable colloidal particles is described. A presentation of the principles of CO2 switching, especially as they apply to colloids, is followed by recent progress in the preparation of several types of colloidal particles (polymer nanoparticles, metal-organic frameworks (MOFs), quantum dots, graphene, cellulose nanocrystals, carbon nanotubes) for various applications (Pickering stabilizers, catalysts, latexes), and our perspective on future opportunities.
Collapse
Affiliation(s)
- Michael F Cunningham
- Queen's University, Department of Chemical Engineering, 19 Division Street, Kingston, ON, Canada.
| | - Philip G Jessop
- Queen's University, Department of Chemistry, 90 Bader Lane, Kingston, ON, Canada
| |
Collapse
|
4
|
Jansen-van Vuuren RD, Naficy S, Ramezani M, Cunningham M, Jessop P. CO 2-responsive gels. Chem Soc Rev 2023; 52:3470-3542. [PMID: 37128844 DOI: 10.1039/d2cs00053a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
CO2-responsive materials undergo a change in chemical or physical properties in response to the introduction or removal of CO2. The use of CO2 as a stimulus is advantageous as it is abundant, benign, inexpensive, and it does not accumulate in a system. Many CO2-responsive materials have already been explored including polymers, latexes, surfactants, and catalysts. As a sub-set of CO2-responsive polymers, the study of CO2-responsive gels (insoluble, cross-linked polymers) is a unique discipline due to the unique set of changes in the gels brought about by CO2 such as swelling or a transformed morphology. In the past 15 years, CO2-responsive gels and self-assembled gels have been investigated for a variety of emerging potential applications, reported in 90 peer-reviewed publications. The two most widely exploited properties include the control of flow (fluids) via CO2-triggered aggregation and their capacity for reversible CO2 absorption-desorption, leading to applications in Enhanced Oil Recovery (EOR) and CO2 sequestration, respectively. In this paper, we review the preparation, properties, and applications of these CO2-responsive gels, broadly classified by particle size as nanogels, microgels, aerogels, and macrogels. We have included a section on CO2-induced self-assembled gels (including poly(ionic liquid) gels).
Collapse
Affiliation(s)
- Ross D Jansen-van Vuuren
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, 1000 Ljubljana, Slovenia
| | - Sina Naficy
- School of Chemical and Biomolecular Engineering, Centre for Excellence in Advanced Food Enginomics (CAFE), The University of Sydney, Sydney, NSW 2006, Australia
| | - Maedeh Ramezani
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, K7K 2N1, Canada.
| | - Michael Cunningham
- Department of Engineering, Dupuis Hall, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Philip Jessop
- Department of Chemistry, Chernoff Hall, Queen's University, Kingston, Ontario, K7K 2N1, Canada.
| |
Collapse
|
5
|
A Review of Oil-Solid Separation and Oil-Water Separation in Unconventional Heavy Oil Production Process. Int J Mol Sci 2022; 24:ijms24010074. [PMID: 36613516 PMCID: PMC9820792 DOI: 10.3390/ijms24010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Unconventional heavy oil ores (UHO) have been considered an important part of petroleum resources and an alternative source of chemicals and energy supply. Due to the participation of water and extractants, oil-solid separation (OSS) and oil-water separation (OWS) processes are inevitable in the industrial separation processes of UHO. Therefore, this critical review systematically reviews the basic theories of OSS and OWS, including solid wettability, contact angle, oil-solid interactions, structural characteristics of natural surfactants and interface characteristics of interfacially active asphaltene film. With the basic theories in mind, the corresponding OSS and OWS mechanisms are discussed. Finally, the present challenges and future research considerations are touched on to provide insights and theoretical fundamentals for OSS and OWS. Additionally, this critical review might even be useful for the provision of a framework of research prospects to guide future research directions in laboratories and industries that focus on the OSS and OWS processes in this important heavy oil production field.
Collapse
|
6
|
Shahrbabaki Z, Oveissi F, Farajikhah S, Ghasemian MB, Jansen-van Vuuren RD, Jessop PG, Yun J, Dehghani F, Naficy S. Electrical Response of Poly( N-[3-(dimethylamino)Propyl] Methacrylamide) to CO 2 at a Long Exposure Period. ACS OMEGA 2022; 7:22232-22243. [PMID: 35811921 PMCID: PMC9260916 DOI: 10.1021/acsomega.2c00914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/08/2022] [Indexed: 05/20/2023]
Abstract
Amine-functionalized polymers (AFPs) are able to react with carbon dioxide (CO2) and are therefore useful in CO2 capture and sensing. To develop AFP-based CO2 sensors, it is critical to examine their electrical responses to CO2 over long periods of time, so that the device can be used consistently for measuring CO2 concentration. To this end, we synthesized poly(N-[3-(dimethylamino)propyl] methacrylamide) (pDMAPMAm) by free radical polymerization and tested its ability to behave as a CO2-responsive polymer in a transducer. The electrical response of this polymer to CO2 upon long exposure times was measured in both the aqueous and solid phases. Direct current resistance measurement tests on pDMAPMAm films printed along with the silver electrodes in the presence of CO2 at various concentrations reveal a two-region electrical response. Upon continuous exposure to different CO2 flow rates (at a constant pressure of 0.2 MPa), the resistance first decreased over time, reaching a minimum, followed by a gradual increase with further exposure to CO2. A similar trend is observed when CO2 is introduced to an aqueous solution of pDMAPMAm. The in situ monitoring of pH suggests that the change in resistance of pDMAPMAm can be attributed to the protonation of tertiary amine groups in the presence of CO2. This two-region response of pDMAPMAm is based on a proton-hopping mechanism and a change in the number of free amines when pDMAPMAm is exposed to various levels of CO2.
Collapse
Affiliation(s)
- Zahra Shahrbabaki
- School
of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Farshad Oveissi
- School
of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Syamak Farajikhah
- School
of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
- The
University of Sydney, Sydney Nano Institute, NSW 2006, Australia
| | - Mohammad B. Ghasemian
- School
of Chemical Engineering, University of New
South Wales (UNSW), Sydney, NSW 2052, Australia
| | - Ross D. Jansen-van Vuuren
- Faculty
of Chemistry and Chemical Technology, University
of Ljubljana, Večna
Pot 113, 1000 Ljubljana, Slovenia
| | - Philip G. Jessop
- Department
of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Jimmy Yun
- School
of Chemical Engineering, University of New
South Wales (UNSW), Sydney, NSW 2052, Australia
- Qingdao
International Academician Park Research Institute, Qingdao, Shandong 266104, PR China
| | - Fariba Dehghani
- School
of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
- The
University of Sydney, Sydney Nano Institute, NSW 2006, Australia
| | - Sina Naficy
- School
of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| |
Collapse
|
7
|
Del Giudice D, Frateloreto F, Sappino C, Di Stefano S. Chemical Tools for the Temporal Control of Water Solution pH and Applications in Dissipative Systems. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniele Del Giudice
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Federico Frateloreto
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Carla Sappino
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Stefano Di Stefano
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry Department Piazzale Aldo Moro 5 00185 Rome ITALY
| |
Collapse
|
8
|
Püschel S, Sadowski J, Rösler T, Ehmann KR, Vorholt AJ, Leitner W. Auto-Tandem Catalytic Reductive Hydroformylation in a CO 2-Switchable Solvent System. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:3749-3756. [PMID: 35360052 PMCID: PMC8942186 DOI: 10.1021/acssuschemeng.2c00419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/21/2022] [Indexed: 06/14/2023]
Abstract
Upgradation of olefin-enriched Fischer-Tropsch cuts by the synthesis of alcohols leads to drop-in-capable biosynthetic fuels with low carbon emissions. As an alternative to the conventional two-step production of long-chain alcohols, tandem catalytic systems improve the energy and resource efficiency. Herein, we present an auto-tandem catalytic system for the production of alcohols from olefin-paraffin mixtures. By utilization of a tertiary alkanolamine as the ligand as well as the switchable component in the solvent system, a lean reaction system capable of catalyst recycling was developed. The system was characterized with regard to the switchable solvent separation approach and reaction parameters, resulting in alcohol yields of up to 99.5% and turnover frequencies of up to 764 h-1. By recycling the catalyst in 10 consecutive reactions, a total turnover number of 2810 was achieved.
Collapse
Affiliation(s)
- Sebastian Püschel
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Jan Sadowski
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Thorsten Rösler
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Kira Ruth Ehmann
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Andreas J. Vorholt
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
| | - Walter Leitner
- Max
Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany
- Institute
for Technical and Macromolecular Chemistry, RWTH Aachen University, 52074 Aachen, Germany
| |
Collapse
|
9
|
Jiménez-Skrzypek G, Ortega-Zamora C, González-Sálamo J, Hernández-Borges J. Miniaturized green sample preparation approaches for pharmaceutical analysis. J Pharm Biomed Anal 2022; 207:114405. [PMID: 34653744 DOI: 10.1016/j.jpba.2021.114405] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/27/2022]
Abstract
The development of green sample preparation procedures is an extremely important research field in which more and more applications are constantly being proposed in different areas, including pharmaceutical analysis. This review article is aimed at providing a general overview of the development of miniaturized green analytical sample preparation procedures in the pharmaceutical analysis field, with special focus on the works published between January 2017 and July 2021. Particular attention has been paid to the application of environmentally friendly solvents and sorbents as well as nanomaterials or high extraction capacity sorbents in which the solvent volumes and reagents amounts are drastically reduced, with their subsequent advantages from the sustainability point of view.
Collapse
Affiliation(s)
- Gabriel Jiménez-Skrzypek
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España
| | - Cecilia Ortega-Zamora
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España
| | - Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España.
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206 San Cristóbal de La Laguna, España.
| |
Collapse
|
10
|
Rathnakumar K, Osorio-Arias JC, Krishnan P, Martínez-Monteagudo SI. Fractionation of spent coffee ground with tertiary amine extraction. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
11
|
Foster MJ, Carpenter AP, Richmond GL. Dynamic Duo: Vibrational Sum Frequency Scattering Investigation of pH-Switchable Carboxylic Acid/Carboxylate Surfactants on Nanodroplet Surfaces. J Phys Chem B 2021; 125:9629-9640. [PMID: 34402616 DOI: 10.1021/acs.jpcb.1c05508] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Surfactants containing pH-switchable, carboxylic acid moieties are utilized in a variety of environmental, industrial, and biological applications that require controlled stability of hydrophobic droplets in water. For nanoemulsions, kinetically stable oil droplets in water, surface adsorption of the anionic form of the carboxylic acid surfactant stabilizes the droplet, whereas a dominant surface presence of the neutral form leads to destabilization. Through the use of dynamic light scattering, ζ-potential, and vibrational sum frequency scattering spectroscopy (VSFSS), we investigate this mechanism and the relative surface population of the neutral and charged species as pH is adjusted. We find that the relative population of the two surfactant species at the droplet surface is distinctly different than their bulk equilibrium concentrations. The ζ-potential measurements show that the surface concentration of the charged surfactant stays nearly constant throughout the stabilizing pH range. In contrast, VSFSS shows that the neutral carboxylic acid form increasingly adsorbs to the surface with increased acidity. The spectral features of the headgroup vibrational modes confirm this behavior and go further to reveal additional molecular details of their adsorption. A significant hydrogen-bonding interaction occurs between the headgroups that, along with hydrophobic chain-chain interactions, assists in drawing more carboxylic acid surfactant to the interface. The charged surfactant provides the stabilizing force for these droplets, while the neutral surfactant introduces complexity to the interfacial structure as the pH is lowered. The results are significantly different than what has been found for the planar oil/water studies where stabilization of the interface is not a factor.
Collapse
Affiliation(s)
- Marc J Foster
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97405, United States
| | - Andrew P Carpenter
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97405, United States
| | - Geraldine L Richmond
- Department of Chemistry and Biochemistry, University of Oregon, Eugene, Oregon 97405, United States
| |
Collapse
|
12
|
Rathnakumar K, Ortega-Anaya J, Jimenez-Flores R, Martínez-Monteagudo SI. Improvements in the extraction of milk phospholipids from beta-serum using ultrasound prior to tertiary amine extraction. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.110864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
13
|
Bio-Based Sensors for Smart Food Packaging-Current Applications and Future Trends. SENSORS 2021; 21:s21062148. [PMID: 33803914 PMCID: PMC8003241 DOI: 10.3390/s21062148] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/14/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
Intelligent food packaging is emerging as a novel technology, capable of monitoring the quality and safety of food during its shelf-life time. This technology makes use of indicators and sensors that are applied in the packaging and that detect changes in physiological variations of the foodstuffs (due to microbial and chemical degradation). These indicators usually provide information, e.g., on the degree of freshness of the product packed, through a color change, which is easily identified, either by the food distributor and the consumer. However, most of the indicators that are currently used are non-renewable and non-biodegradable synthetic materials. Because there is an imperative need to improve food packaging sustainability, choice of sensors should also reflect this requirement. Therefore, this work aims to revise the latest information on bio-based sensors, based on compounds obtained from natural extracts, that can, in association with biopolymers, act as intelligent or smart food packaging. Its application into several perishable foods is summarized. It is clear that bioactive extracts, e.g., anthocyanins, obtained from a variety of sources, including by-products of the food industry, present a substantial potential to act as bio-sensors. Yet, there are still some limitations that need to be surpassed before this technology reaches a mature commercial stage.
Collapse
|
14
|
Understanding the switchable solvent extraction of phospholipids from dairy byproducts. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
15
|
Ma W, Dai S, Zhu P, Zhou R, Lu H. Dual CO 2 Responsiveness of an Oil-In-Water Emulsion by Using Sodium Oleate and Water-Soluble Tertiary Amines. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:750-758. [PMID: 33400537 DOI: 10.1021/acs.langmuir.0c03038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two kinds of water-soluble tertiary amines (TAs), triethylamine (TEA, monoamine), and tetramethyltrimethylenediamine (TMA, diamine) were introduced into a NaOA stable oil-water (O/W) emulsion, respectively, and their dual reactivity to carbon dioxide was studied. TA was converted into bicarbonate after bubbling of CO2, which induced the increase of ionic strength of the aqueous phase, and formed ion pair with NaOA through electrostatic interaction. NaOA itself can also be protonated into oleic acid, which can be reverently deprotonated by alternating bubbles of CO2 at 25 °C and N2 at 50 °C, thus affecting the stability and demulsification process of the emulsion. In order to demonstrate TA's and NaOA's synergistic effect on CO2 responsiveness, gas chromatography-mass spectrometry, ζ potential, electrical conductivity, pH value, 1H nuclear magnetic resonance, morphological evolution, and interfacial tension were used to study the contributions of the single component and two components of NaOA, TEA, and TMA to emulsion stability and CO2 responsiveness, respectively. Combined with the composition distribution under different pH conditions, it was further proved that TAs had an effect on the stability and CO2 responsiveness of the NaOA emulsion.
Collapse
Affiliation(s)
- Wenjing Ma
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Shanshan Dai
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
| | - Peiyao Zhu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Ru Zhou
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
| |
Collapse
|
16
|
Dowlati S, Javadi A, Miller R, Bahramian A. Characterization of reactive interfaces via coupled interfacial tension measurements and interphase mass transfer analysis. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
17
|
Wang X, Qiu H, Wu Q, Xie J, Zhou S, Wu W. Salt-Enhanced CO 2-Responsiveness of Microgels. ACS Macro Lett 2020; 9:1611-1616. [PMID: 35617062 DOI: 10.1021/acsmacrolett.0c00617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we report a distinct mechanism for harnessing CO2-responsiveness through enhancing CO2 capture ability. The finding is demonstrated on the microgels that are composed of oligo(ethylene glycol) and sulfonate moieties. Laser light scattering studies on dilute aqueous dispersion of these microgels indicated a low CO2-responsivity, which can be significantly enhanced by adding NaCl and other salts. This salt-enhanced CO2-responsiveness of microgels can be elucidated by the antipolyelectrolyte behavior and its superposition of forming cross-links physically with CO2 as an intermediate. Further results of the filtration experiments on microgel translocation through pores suggest the feasibility of the explanation. The finding is also supported by the CO2 capture-release experiments on the dispersion, which can reversibly absorb and desorb CO2.
Collapse
Affiliation(s)
- Xiaofei Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Huijuan Qiu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Qingshi Wu
- College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou, Fujian 362000, China
| | - Jianda Xie
- School of Materials Science and Engineering, Xiamen University of Technology, Xiamen, Fujian 361024, China
| | - Shiming Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Weitai Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, The Key Laboratory for Chemical Biology of Fujian Province, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| |
Collapse
|
18
|
Dai S, Li X, Zhao J, Lu H. Hybrid Extraction of Oily Sludge by Tertiary Amines and Protonated Tertiary Amines. Chem Eng Technol 2020. [DOI: 10.1002/ceat.201900469] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shanshan Dai
- Southwest Petroleum University College of Chemistry and Chemical Engineering No. 8 Xindu Avenue 610500 Chengdu China
- Engineering Research Center of Oilfield Chemistry Ministry of Education No. 8 Xindu Avenue 610500 Chengdu China
| | - Xiaojiang Li
- Southwest Petroleum University College of Chemistry and Chemical Engineering No. 8 Xindu Avenue 610500 Chengdu China
| | - Jihe Zhao
- Southwest Petroleum University College of Chemistry and Chemical Engineering No. 8 Xindu Avenue 610500 Chengdu China
| | - Hongsheng Lu
- Southwest Petroleum University College of Chemistry and Chemical Engineering No. 8 Xindu Avenue 610500 Chengdu China
- Engineering Research Center of Oilfield Chemistry Ministry of Education No. 8 Xindu Avenue 610500 Chengdu China
| |
Collapse
|
19
|
Zhang L, Lu X, Liu X, Li Q, Cheng Y, Hou Q. Molecular dynamics simulation of CO 2-switchable surfactant regulated reversible emulsification/demulsification processes of a dodecane-saline system. Phys Chem Chem Phys 2020; 22:23574-23585. [PMID: 33057504 DOI: 10.1039/d0cp03904g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO2-Switchable surfactants are of great potential in a wide range of industrial applications related to their ability to stabilize and destabilize emulsions upon command. Molecular dynamics simulations have been performed to reveal the fundamental mechanism of the reversible emulsification/demulsification processes of a dodecane-saline system by a CO2-switchable surfactant that switches between active (i.e., N'-dodecyl-N,N-dimethylacetamidinium (DMAAH+)) and inactive (i.e., N'-dodecyl-N,N-dimethylacetamidine (DMAA)) forms. The density profiles indicate that DMAAH+ could increase the oil-water interfacial thickness to a greater extent compared to DMAA. DMAAH+ could sharply reduce the interfacial tension of the dodecane-saline system, while DMAA only exhibits a limited decrease, which is in accordance with the experimental observation that DMAAH+/DMAA can reversibly emulsify/demulsify alkane-water systems. Our simulations showed that both the number and lifetime of hydrogen bonds (HBs) between DMAA and water are almost equal to those between DMAAH+ and water. In DMAA, the N atom connecting with the alkyl tail acted as a HB acceptor, while the N atom attached by a proton in DMAAH+ acted as a HB donor. Furthermore, the HBs between DMAAH+ and HCO3- at the interfaces are relatively limited. Hence, it is deduced that the HBs are insufficient to achieve the CO2-switchability of DMAA/DMAAH+. The Lennard Jones and coulombic potentials between DMAA/DMAAH+ and other species show that the coulombic potentials between DMAAH+ and water or anions (i.e., Cl- and HCO3-) sharply decrease with the increase of DMAAH+ and are much lower than those in models with DMAA. The enhanced coulombic interactions between DMAAH+ and anions lead to a remarkable reduction in interfacial tension and the emulsification of the alkane-saline system. Therefore, coulombic interactions are of crucial importance to the reversible emulsification/demulsification processes regulated by CO2-switchable surfactants, namely DMAAH+/DMAA.
Collapse
Affiliation(s)
- Lihu Zhang
- State Key Laboratory for Ore Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.
| | - Xiancai Lu
- State Key Laboratory for Ore Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China. and Key Lab of Surficial Geochemistry of Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China
| | - Xiandong Liu
- State Key Laboratory for Ore Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.
| | - Qin Li
- State Key Laboratory for Ore Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.
| | - Yongxian Cheng
- State Key Laboratory for Ore Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.
| | - Qingfeng Hou
- State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation (CNPC), Beijing 100083, P. R. China
| |
Collapse
|
20
|
Carboxymethyl-chitosan-modified carbon nanotubes have sensitive CO2-responsive dispersion in water. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.09.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
21
|
Carboxymethyl chitosan has sensitive two-way CO2-responsive hydrophilic/hydrophobic feature. Carbohydr Polym 2020; 241:116408. [DOI: 10.1016/j.carbpol.2020.116408] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/17/2020] [Accepted: 04/30/2020] [Indexed: 11/21/2022]
|
22
|
Zhou YN, Li JJ, Wu YY, Luo ZH. Role of External Field in Polymerization: Mechanism and Kinetics. Chem Rev 2020; 120:2950-3048. [PMID: 32083844 DOI: 10.1021/acs.chemrev.9b00744] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The past decades have witnessed an increasing interest in developing advanced polymerization techniques subjected to external fields. Various physical modulations, such as temperature, light, electricity, magnetic field, ultrasound, and microwave irradiation, are noninvasive means, having superb but distinct abilities to regulate polymerizations in terms of process intensification and spatial and temporal controls. Gas as an emerging regulator plays a distinctive role in controlling polymerization and resembles a physical regulator in some cases. This review provides a systematic overview of seven types of external-field-regulated polymerizations, ranging from chain-growth to step-growth polymerization. A detailed account of the relevant mechanism and kinetics is provided to better understand the role of each external field in polymerization. In addition, given the crucial role of modeling and simulation in mechanisms and kinetics investigation, an overview of model construction and typical numerical methods used in this field as well as highlights of the interaction between experiment and simulation toward kinetics in the existing systems are given. At the end, limitations and future perspectives for this field are critically discussed. This state-of-the-art research progress not only provides the fundamental principles underlying external-field-regulated polymerizations but also stimulates new development of advanced polymerization methods.
Collapse
Affiliation(s)
- Yin-Ning Zhou
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Jin Li
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Yi-Yang Wu
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zheng-Hong Luo
- Department of Chemical Engineering, School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| |
Collapse
|
23
|
Shieh YT, Yeh YC, Cheng CC. Two-Way CO 2-Responsive Polymer Particles with Controllable Amphiphilic Properties. ACS OMEGA 2020; 5:1862-1869. [PMID: 32039322 PMCID: PMC7003192 DOI: 10.1021/acsomega.9b03319] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/14/2020] [Indexed: 06/10/2023]
Abstract
Multiple stimuli-responsive amphiphilic block copolymers of poly(methacrylic acid) (PMAA) and poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) were used as emulsifiers to prepare two-way CO2 stimuli-responsive poly(methyl methacrylate) (PMMA) latex particles via aqueous emulsion polymerization. The polymerization at pH 2 and 50 °C produced mainly PDMAEMA-surfaced PMMA latex particles, whereas the polymerization at pH 12 and 50 °C produced mainly PMAA-surfaced particles. Both types of latex particles appeared to precipitate at higher pH values from the emulsifier of a longer PDMAEMA block length. The direction from precipitation to dispersion for PDMAEMA-surfaced particles or from dispersion to precipitation for PMAA-surfaced particles in response to CO2 bubbling of the pH 12 dispersion of particles depended on the PDMAEMA block length. Together, this study reveals that-by tuning the PDMAEMA block length in PMAA-b-PDMAEMA used as an emulsifier and polymerization at pH 2 or 12-PMMA latex particles can exhibit two-way CO2 responsiveness between dispersion and precipitation. Thus, due to their simple preparation and unique dual pH and CO2 responsiveness, these newly developed PMAA-b-PDMAEMA emulsifiers provide a highly efficient approach for the development of smart PMMA latex nanoparticles with desirable multifunctional properties.
Collapse
Affiliation(s)
- Yeong-Tarng Shieh
- Department
of Chemical and Materials Engineering, National
University of Kaohsiung, 700 Kaohsiung University Road, Nanzih District, Kaohsiung 81148, Taiwan
| | - Yao-Chuan Yeh
- Department
of Chemical and Materials Engineering, National
University of Kaohsiung, 700 Kaohsiung University Road, Nanzih District, Kaohsiung 81148, Taiwan
| | - Chih-Chia Cheng
- Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, 43, Keelung Road, Section 4, Da’an District, Taipei 10607, Taiwan
| |
Collapse
|
24
|
Ellis SN, Riabtseva A, Dykeman RR, Hargreaves S, Robert T, Champagne P, Cunningham MF, Jessop PG. Nitrogen Rich CO 2-Responsive Polymers as Forward Osmosis Draw Solutes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04858] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sarah N. Ellis
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Anna Riabtseva
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Ryan R. Dykeman
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Sam Hargreaves
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Tobias Robert
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Pascale Champagne
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
- Department of Civil Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
- Beaty Water Research Centre, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Michael F. Cunningham
- Department of Chemical Engineering, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| | - Philip G. Jessop
- Department of Chemistry, Queen’s University, Kingston, Ontario, Canada K7L 3N6
| |
Collapse
|
25
|
Shieh YT, Yeh YC, Cheng CC. Multistimuli-Responsive Emulsifiers Based on Two-Way Amphiphilic Diblock Polymers. ACS OMEGA 2019; 4:15479-15487. [PMID: 31572848 PMCID: PMC6761613 DOI: 10.1021/acsomega.9b01728] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/03/2019] [Indexed: 06/10/2023]
Abstract
Diblock copolymers of poly(tert-butyl methacrylate) (PtBuMA) and poly(2-dimethylaminoethyl methacrylate) (PDMAEMA) of four different block lengths were prepared by sequential two-step reversible addition-fragmentation chain transfer radical polymerization, followed by hydrolysis of the PtBuMA blocks to obtain poly(methacrylic acid)-b-PDMAEMA (PMAA-b-PDMAEMA). The effect of the PDMAEMA block length on the multistimuli-responsive amphiphilic features of both types of diblock copolymers was investigated as CO2-switchable emulsifiers for emulsification/demulsification of n-octane (an oil) in water in response to CO2/N2 bubbling. The amphiphilicity of PtBuMA-b-PDMAEMA was switched on, and the amphiphilicity of PMAA-b-PDMAEMA was switched off by CO2 bubbling at pH 12 and 25 °C to achieve emulsification/demulsification. A longer PDMAEMA block length in PMAA-b-PDMAEMA conferred more sensitive CO2-responsive amphiphilicity but reduced the extent of recovery of emulsification ability on N2 bubbling. This newly developed diblock copolymer system could potentially serve as a "multifunctional surfactant" for CO2-switchable emulsification/demulsification of oil-in-water and water-in-oil mixtures.
Collapse
Affiliation(s)
- Yeong-Tarng Shieh
- Department
of Chemical and Materials Engineering, National
University of Kaohsiung, No. 700, Kaohsiung University Road, Nanzih District, Kaohsiung 81148, Taiwan
| | - Yao-Chuan Yeh
- Department
of Chemical and Materials Engineering, National
University of Kaohsiung, No. 700, Kaohsiung University Road, Nanzih District, Kaohsiung 81148, Taiwan
| | - Chih-Chia Cheng
- Graduate
Institute of Applied Science and Technology, National Taiwan University of Science and Technology, No. 43, Section 4, Keelung Road, Da’an District, Taipei 10607, Taiwan
| |
Collapse
|
26
|
Cunningham MF, Jessop PG. Carbon Dioxide-Switchable Polymers: Where Are the Future Opportunities? Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00914] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
27
|
Jiang B, Zhang Y, Huang X, Kang T, Severtson SJ, Wang WJ, Liu P. Tailoring CO2-Responsive Polymers and Nanohybrids for Green Chemistry and Processes. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02433] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Bingxue Jiang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Yuchen Zhang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Xiaodong Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Ting Kang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
| | - Steven J. Severtson
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, 2004 Folwell Avenue, St. Paul, Minnesota 55108, United States
| | - Wen-Jun Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Pingwei Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, China
- Institute of Zhejiang University - Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| |
Collapse
|
28
|
Hellström A, Nordstierna L, Bordes R. Carbamate Chemistry at Interfaces: Practical Considerations and Challenges of Studying Amine Surfactants. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anna‐Karin Hellström
- Department of Chemistry and Chemical EngineeringChalmers University of Technology Göteborg Sweden
| | - Lars Nordstierna
- Department of Chemistry and Chemical EngineeringChalmers University of Technology Göteborg Sweden
| | - Romain Bordes
- Department of Chemistry and Chemical EngineeringChalmers University of Technology Göteborg Sweden
| |
Collapse
|
29
|
Dai S, Zhu P, Suo Y, Lu H. Controllable CO 2-Responsiveness of an Oil-in-Water Emulsion by Varying the Number of Tertiary Amine Groups or the Position of the Hydroxyl Group of Tertiary Amine. J Phys Chem B 2019; 123:2558-2566. [PMID: 30802057 DOI: 10.1021/acs.jpcb.8b11344] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A series of water-soluble tertiary amines (TAs) are introduced into an oil-in-water (O/W) emulsion stabilized by sodium oleate (NaOA). TAs convert into bicarbonate salts upon bubbling of CO2, which could induce the increase of ionic strength of the aqueous phase, form ion pairs with NaOA by electrostatic interaction, and finally result in demulsification. ζ-Potential, conductivity, pH value, 1H NMR, separation rate, and interfacial tension are applied to figure out the effects of number of tertiary amine groups and different positions of the hydroxyl group. TA with an increasing number of tertiary amine groups can further stabilize the O/W emulsion and accelerate the process of demulsification by bubbling CO2. More tertiary amine groups bring about a more stable emulsion and faster demulsification by bubbling CO2. The position of the hydroxyl group is a key factor affecting the solubility of the corresponding ion pair formed with NaOA. The better the water solubility, the slower the demulsification. The worse the water solubility of the ion pair, the more perfect the demulsification is. More importantly, water-soluble TA, with proper structure, could bring about perfect demulsification.
Collapse
Affiliation(s)
- Shanshan Dai
- College of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , P. R. China.,Engineering Research Center of Oilfield Chemistry , Ministry of Education , Chengdu 610500 , P. R. China
| | - Peiyao Zhu
- College of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , P. R. China
| | - Yuxin Suo
- College of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering , Southwest Petroleum University , Chengdu 610500 , P. R. China.,Engineering Research Center of Oilfield Chemistry , Ministry of Education , Chengdu 610500 , P. R. China
| |
Collapse
|
30
|
|
31
|
Reversible flocculation of nanoparticles by a carbamate surfactant. J Colloid Interface Sci 2018; 536:722-727. [PMID: 30414558 DOI: 10.1016/j.jcis.2018.10.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 10/17/2018] [Accepted: 10/19/2018] [Indexed: 11/23/2022]
Abstract
Fatty alkyldiamine readily reacts with CO2 in aqueous solution at pH 12 to reversibly form surface active carbamate species. The carbamate can be reverted to the amine by exposure to N2 and heat. In this work, a carbamate-based surfactant (Y12-carbamate) has been used to disperse and stabilize hydrophobic nanoparticles. This state could be regarded as the "on" state of a series of cycle. The nanoparticles were then flocculated when the carbamate groups were cleaved by exposure to N2 and heating, corresponding to the "off" state. In a subsequent cycle, the nanoparticles were re-dispersed by exposure to CO2, while the pH remained at 12. This cycle of re-dispersion and flocculation could be repeated two times without impairing the particle size. However, further cycles increased the particle size, indicating that all particles could not be completely re-dispersed. In addition, we also investigated the effect of pH on the colloidal stability with sodium Y12-carbamate, by measuring particle size and electrophoretic mobility. The results showed that pH strongly influenced the stability of the nanoparticles. Sodium Y12-carbamate stabilized the particles with a negative electrophoretic mobility at pH well above pKa whereas at pH close to pKa of Y12-amine (pKa = 9.0), the particles quickly flocculated, as a result of an ion-pair formation between Y12-ammonium and Y12-carbamate.
Collapse
|
32
|
Su X, Jessop PG, Cunningham MF. ATRP Catalyst Removal and Ligand Recycling Using CO2-Switchable Materials. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01432] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Xin Su
- Department of Chemical Engineering, Queen’s University, 19 Division Street, Kingston, Ontario, Canada K7L 3N6
| | - Philip G. Jessop
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Michael F. Cunningham
- Department of Chemical Engineering, Queen’s University, 19 Division Street, Kingston, Ontario, Canada K7L 3N6
| |
Collapse
|
33
|
Wang J, Wang H, Li Y, Tian L, Chen S, Liu Q, Guo Z. Formation and CO2/N2 Switchable Ability of a Novel Copolymer Poly(N,N-Diethylaminoethyl Methacrylate-co-Sodium Vinylsulfonate). POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x18050139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
34
|
Hellström AK, Oskarsson H, Bordes R. Formation, physicochemical and interfacial study of carbamate surfactants. J Colloid Interface Sci 2018; 511:84-91. [PMID: 28988009 DOI: 10.1016/j.jcis.2017.09.100] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 09/27/2017] [Accepted: 09/27/2017] [Indexed: 01/06/2023]
Abstract
Carbon dioxide is commonly used as pH regulator in switchable surfactant systems and in the formation of alkyl ammonium-alkyl carbamate ion-pair. Its use to form a meta-stable anionic surfactant has been less explored and can impart a cleavable character to the amphiphile. The reaction between CO2 and an alkylamine, N,N-di(propylamino)dodecylamine (Y12-amine), under alkaline pH conditions, produced a stable anionic carbamate-based surfactant (Y12-carbamate). By heating and exposure to N2, anionic Y12-carbamate could slowly be reverted into Y12-amine. The surface activity of Y12-amine and Y12-carbamate was investigated by surface tension measurements. To study the behavior of Y12-amine at the gas-water interface during CO2 exposure, we used the pendant drop technique with a sealed chamber where the gas composition could be controlled. The Y12-carbamate had a higher CMC than Y12-amine at pH 12, and was also less surface active. The ion pair Y12-ammonium - Y12-carbamate, obtained at neutral pH, exhibited the lowest CMC and the highest surface activity. The interfacial formation of anionic Y12-carbamate induced an increase in surface tension. When CO2 was exchanged to N2, the migration from the bulk to the interface of Y12-amine induced a decrease in surface tension. The rate was dependent on the concentration of Y12-amine.
Collapse
Affiliation(s)
- Anna-Karin Hellström
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden.
| | | | - Romain Bordes
- Applied Chemistry, Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, Sweden.
| |
Collapse
|
35
|
Clarke CJ, Tu WC, Levers O, Bröhl A, Hallett JP. Green and Sustainable Solvents in Chemical Processes. Chem Rev 2018; 118:747-800. [DOI: 10.1021/acs.chemrev.7b00571] [Citation(s) in RCA: 897] [Impact Index Per Article: 149.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Coby J. Clarke
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
| | - Wei-Chien Tu
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
| | - Oliver Levers
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
| | - Andreas Bröhl
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
| | - Jason P. Hallett
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, United Kingdom
| |
Collapse
|
36
|
Harrell ML, Malinski T, Torres-López C, Gonzalez K, Suriboot J, Bergbreiter DE. Alternatives for Conventional Alkane Solvents. J Am Chem Soc 2016; 138:14650-14657. [DOI: 10.1021/jacs.6b07967] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mary L. Harrell
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Thomas Malinski
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Coralys Torres-López
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Kimberly Gonzalez
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - Jakkrit Suriboot
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| | - David E. Bergbreiter
- Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, United States
| |
Collapse
|