Synthesis and characterization of novel functional poly(vinyl alcohol-<i>co-</i>styrene sulfonic acid) copolymers

Choudhury, Rikarani R.; Gohil, Jaydevsinh M.; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1080/1023666x.2019.1596367

Cited by 6 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Stiernet et al 51 obtained poly(vinyl alcohol‐ co ‐vinyl amine) (PVA‐ co ‐PNVA) by cobalt‐mediated radical polymerization of VAc and N ‐vinyl amine (NVA). Recently, our research group has used a simple and cost‐effective free radical mechanism, using commercially available AIBN initiator, for the preparation of poly(vinyl alcohol‐ co ‐styrene sulfonic acid) (PVA‐ co‐ PSSA), having a PDI of about 2.3 52 …”

Section: Advances In Pva‐based Polymersmentioning

confidence: 99%

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Choudhury

Gohil

Dutta

2021

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

Clean water and energy are two of the most important requirements for human survival. Membrane‐based filtration represents one of the advanced technologies involved in water decontamination; while, polymer electrolyte membrane fuel cells (PEMFCs) are among the frontrunners in the alternative and renewable energy domain. It is evident that membrane‐based processes provide sustainable solution to the ever‐increasing demand of energy and clean water. Over the years, it has been realized that synthetic poly(vinyl alcohol) (PVA) is one of the potential candidates for the development of membranes, owing to its hydrophilicity, barrier property, film forming ability, crosslinking ability, biodegradability, and low cost. These properties have been widely explored for the fabrication of polymer electrolyte membranes for PEMFCs, in order to improve the ionic conductivity and methanol barrier property, as well as, to reduce the membrane fabrication cost. On the other hand, high water solubility and film forming characteristics of PVA have been used for the formation of water treatment membranes, for enhancing the antifouling property and chemical stability. This review provides in‐depth discussions and analyses on the structure and properties of various PVA‐based copolymers, and their applications as membrane materials for PEMFCs (including direct methanol and alkaline fuel cells) and water remediation.

show abstract

Section: Advances In Pva‐based Polymersmentioning

confidence: 99%

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Choudhury

Gohil

Dutta

2021

Polymers for Advanced Techs

Self Cite

View full text Add to dashboard Cite

show abstract

Acid catalyzed cross‐linking of polyvinyl alcohol for humidifier membranes

Michele

Paschkowski

Hänel

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polyvinyl alcohol (PVA) is a hydrophilic polymer well known for good film forming properties, high water vapor permeance J W , and low nitrogen permeance. However, depending on molar mass and temperature, PVA swells strongly in water until complete dissolution. This behavior affects the usability of PVA in aqueous environments and makes cross-linking necessary if higher structural integrity is envisaged. In this work, PVA networks are formed by thermal cross-linking in the presence of p-toluenesulfonic acid (TSA) and investigated in a design of experiments approach. Experimental parameters are the cross-linking period t c , temperature ϑ and the TSA mass fraction w TSA . Cross-linking is found to proceed via ether bond formation at all reaction conditions. Degradation is promoted especially by a combination of high w TSA , t c and ϑ. Thermal stability of the networks after preparation is strongly improved by neutralizing residual TSA. Humidification membranes with a J W of 6423 ± 63.0 gas permeation units (GPU) are fabricated by coating PVA on polyvinyliden fluoride hollow fibers and cross-linking with TSA. Summarizing, the present study contributes to a clearer insight into the cross-linking of PVA in presence of TSA, the thermal stability of the resulting networks and the applicability as selective membrane layers for water vapor transfer.

show abstract

Synthesis of Poly(styrene sulfonyl chloride) via reversible addition-fragmentation chain transfer polymerization and characterization thereof for membrane applications

Choudhury

Palai

Gohil

et al. 2021

Journal of the Indian Chemical Society

View full text Add to dashboard Cite

Synthesis and characterization of novel functional poly(vinyl alcohol-co-styrene sulfonic acid) copolymers

Cited by 6 publications

References 31 publications

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Poly(vinyl alcohol)‐based membranes for fuel cell and water treatment applications: A review on recent advancements

Acid catalyzed cross‐linking of polyvinyl alcohol for humidifier membranes

Synthesis of Poly(styrene sulfonyl chloride) via reversible addition-fragmentation chain transfer polymerization and characterization thereof for membrane applications

Contact Info

Product

Resources

About