Permeation dynamics of dimethyl methylphosphonate through polyelectrolyte composite membranes by in-situ Raman spectroscopy

Colón-Ortiz, Jonathan; Ramesh, Pranav; Tsilomelekis, George; Neimark, Alexander V.

doi:10.1016/j.memsci.2019.117462

Cited by 7 publications

(18 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nerve agents commonly used include Sarin (GB), Soman (GD), and Tabun (GA) 13,17,18 . Due to the toxic nature of the aforementioned agents, compounds such as dimethyl methylphosphonate (DMMP), diethyl cyanophosphonate, and diisopropylfluorophosphate, have been used as simulant molecules to evaluate the efficacy of materials for protective applications 19,20 …”

Section: Introductionmentioning

confidence: 99%

“…PEMs are formed by hydrophilic and hydrophobic blocks, which self‐assemble during the membrane elaboration process allowing the formation of nanoscale hydrophilic channels 25 . Some PEMs used in the manufacture of CPCs include polystyrene sulfonic acid, sulfonated poly (phenylene sulphide) (S‐PPS), sulfonated poly (styrene‐isobutylene‐styrene) (S‐SIBS), Nafion, and Nexar 13,20,26 . To improve selectivity in these polymers, several researchers have made modifications like grafting copolymers and composite membranes using ZnO nanoparticles, 20 reactive metal–organic framework nanoparticles, 21 and carbon nanotubes 27 .…”

Section: Introductionmentioning

confidence: 99%

“…13,17,18 Due to the toxic nature of the aforementioned agents, compounds such as dimethyl methylphosphonate (DMMP), diethyl cyanophosphonate, and diisopropylfluorophosphate, have been used as simulant molecules to evaluate the efficacy of materials for protective applications. 19,20 Materials used in CPC require high breathability, chemical resistance, and must provide protection against exposure to CWAs. 21,22 Polymer materials generally utilized for protective clothing include polytetrafluoroethylene, polyurethane, polyvinylchloride, chlorinated polyethylene, polyethylene, and elastomers like butyl rubber, neoprene rubber, and nitrile rubber.…”

Section: Introductionmentioning

confidence: 99%

“…13,18,25 Given the breathability concerns of the traditional materials, semi-permeable barriers like polyelectrolyte membranes (PEMs) have been successfully utilized due to their, selective permeability, agent protective properties, and ability to transport water through their structure. 20 PEMs are formed by hydrophilic and hydrophobic blocks, which selfassemble during the membrane elaboration process allowing the formation of nanoscale hydrophilic channels. 25 Some PEMs used in the manufacture of CPCs include polystyrene sulfonic acid, sulfonated poly (phenylene sulphide) (S-PPS), sulfonated poly (styrene-isobutylene-styrene) (S-SIBS), Nafion, and Nexar.…”

Section: Introductionmentioning

confidence: 99%

“…25 Some PEMs used in the manufacture of CPCs include polystyrene sulfonic acid, sulfonated poly (phenylene sulphide) (S-PPS), sulfonated poly (styrene-isobutylene-styrene) (S-SIBS), Nafion, and Nexar. 13,20,26 To improve selectivity in these polymers, several researchers have made modifications like grafting copolymers and composite membranes using ZnO nanoparticles, 20 reactive metalorganic framework nanoparticles, 21 and carbon nanotubes. 27 All these improvements have increased the water transport rate in the membranes as well as their selectivity for CPC applications.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Sulfonated poly(styrene‐isobutylene‐styrene) grafted with hexyl‐ and butyl‐imidazolium chloride ionic liquids

Barrios‐Tarazona

Suleiman

2021

Journal of Polymer Science

View full text Add to dashboard Cite

In this work, novel sulfonated poly(ionic liquid)s block-copolymers based on poly(styrene-isobutylene-styrene) (SIBS) are synthesized for chemical protective clothing (CPC) applications. The synthesis consists of the chloromethylation of SIBS, followed by the incorporation of N-alkylimidazole through chemical grafting, and concluding with sulfonation of the resulting compound. Properties of the membranes are determined as a function of different N-alkylimidazoles (butylimidazole and hexylimidazole) and sulfonation levels (7-23 mol%). Results show that the incorporation of imidazole and sulfonic groups increases the thermal stability of SIBS as well as its water absorption capabilities. The interaction between the ionic moieties in the polymeric matrix allows the formation of hydrophilic nanochannels, which promote the transport of permeants through the membrane. The high water vapor transmission rate (above 2000 g m À2 day À1 ) and values of selectivity (~50) demonstrate that the breathability of the synthesized membrane is improved while blocking the passage of dimethyl methylphosphonate (simulant of agent Sarin). The above mentioned observations suggest that sulfonated SIBS-PIL's membranes are potential materials for CPC applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sulfonated poly(styrene‐isobutylene‐styrene) grafted with hexyl‐ and butyl‐imidazolium chloride ionic liquids

Barrios‐Tarazona

Suleiman

2021

Journal of Polymer Science

View full text Add to dashboard Cite

show abstract

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

Gorji

Mazinani

Gharehaghaji

2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

Enhanced heat and moisture management has become highly urgent to clothing systems due to the global need to personalize the ventilation process. As a significant sector of apparel industries, membrane‐based clothing systems offer protection and ventilation functionalities. This review aims at providing a new viewpoint on efforts to improve heat and moisture management in membrane‐based clothing systems according to the latest advances in this field. The study terminates with presenting a perspective on current challenges and opportunities for future research directions in personal thermal and moisture management technologies. In fact, membranes with different functionalities used in clothing systems such as photonic membranes with heating and cooling performances, unidirectional liquid transport membranes, waterproof‐breathable membranes, shape‐memory membranes, thermoregulating membranes, thermal conductive membranes and finally protective membranes are investigated. The essential functions associated to different categories of the investigated membranes along with the relationships between membrane structure and properties are presented.

show abstract

Synthesis and characterization of multi‐ionic block copolymers and blended membranes for chemical protective clothing applications

Tarazona

Ramos‐Rivera

Suleiman

2023

J of Applied Polymer Sci

View full text Add to dashboard Cite

This study discusses the synthesis of sulfonated amine block copolymers and the effect of multiple ionic domains and counter-ion substitution on polymeric membranes' morphology and transport properties for chemical protective clothing (CPC) applications. The monomers 2-(tert-butylamino) ethyl methacrylate, 2-ethoxy ethyl methacrylate, and styrene were used to prepare the block copolymers by atom transfer radical polymerization (ATRP). The copolymers were then sulfonated by chemical grafting with pendants sulfobutyl groups onto the polymer structure. Properties of the resulting membranes were evaluated as a function of block composition, incorporation of sulfonic groups, and counter-ion substitution. Blended membranes with sulfonated poly(styreneisobutylene-styrene) (SIBS) were also studied. A series of materials characterization techniques (e.g., Fourier-transform infrared spectroscopy [FT-IR], thermogravimetric analysis [TGA], atomic force microscopy [AFM], Smallangle X-ray scattering [SAXS]/wide-angle X-ray scattering [WAXS]) were performed to describe the changes to the membranes. The results indicate that synthesized copolymers lack phase segregation mainly because of a low sulfonation on the central amine block, leading the material to have a low Water/ DMMP selectivity. As the sulfonated copolymers were blended with SIBS 75, the breathability of the membranes were enhanced 1.5 times, and almost all candidates achieved the water vapor transport rate limit of 1500 g m À2 day À1 . Finally, the better-found candidates for DMMP CPC were Mg 2+ membranes, achieving selectivity between 20 and 90 range.

show abstract

Permeation dynamics of dimethyl methylphosphonate through polyelectrolyte composite membranes by in-situ Raman spectroscopy

Cited by 7 publications

References 36 publications

Sulfonated poly(styrene‐isobutylene‐styrene) grafted with hexyl‐ and butyl‐imidazolium chloride ionic liquids

Sulfonated poly(styrene‐isobutylene‐styrene) grafted with hexyl‐ and butyl‐imidazolium chloride ionic liquids

A review on emerging developments in thermal and moisture management by membrane‐based clothing systems towards personal comfort

Synthesis and characterization of multi‐ionic block copolymers and blended membranes for chemical protective clothing applications

Contact Info

Product

Resources

About