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Cost-Effective Water-Soluble Poly(vinyl alcohol) as a Functional Binder for High-Sulfur-Loading Cathodes in Lithium-Sulfur Batteries.

Author(s): Liao J, Liu Z, Wang J, Ye Z

ACS Omega. 2020 Apr 14;5(14):8272-8282 Authors: Liao J, Liu Z, Wang J, Ye Z

Article GUID: 32309738
Dual Reduction/Acid-Responsive Disassembly and Thermoresponsive Tunability of Degradable Double Hydrophilic Block Copolymer.

Author(s): Maruya-Li K, Shetty C, Moini Jazani A, Arezi N, Oh JK

ACS Omega. 2020 Feb 25;5(7):3734-3742 Authors: Maruya-Li K, Shetty C, Moini Jazani A, Arezi N, Oh JK

Article GUID: 32118189
Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol.

Author(s): Liang Y, Manioudakis J, Macairan JR, Askari MS, Forgione P, Naccache R

ACS Omega. 2019 Sep 17;4(12):14955-14961 Authors: Liang Y, Manioudakis J, Macairan JR, Askari MS, Forgione P, Naccache R

Article GUID: 31552336
Facile Strategies to Synthesize Dual Location Dual Acidic pH/Reduction-Responsive Degradable Block Copolymers Bearing Acetal/Disulfide Block Junctions and Disulfide Pendants.

Author(s): Jazani AM, Arezi N, Maruya-Li K, Jung S, Oh JK

ACS Omega. 2018 Aug 31;3(8):8980-8991 Authors: Jazani AM, Arezi N, Maruya-Li K, Jung S, Oh JK

Article GUID: 31459031
Title:Dual Reduction/Acid-Responsive Disassembly and Thermoresponsive Tunability of Degradable Double Hydrophilic Block Copolymer.
Authors:Maruya-Li K,  Shetty C,  Moini Jazani A,  Arezi N,  Oh JK
Link:https://www.ncbi.nlm.nih.gov/pubmed/32118189?dopt=Abstract
DOI:10.1021/acsomega.9b04430
Category:ACS Omega
PMID:32118189
Dept Affiliation: CHEMBIOCHEM
1 Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada.

Description:

Dual Reduction/Acid-Responsive Disassembly and Thermoresponsive Tunability of Degradable Double Hydrophilic Block Copolymer.

ACS Omega. 2020 Feb 25;5(7):3734-3742

Authors: Maruya-Li K, Shetty C, Moini Jazani A, Arezi N, Oh JK

Abstract

We report a thermoresponsive double hydrophilic block copolymer degradable in response to dual reduction and acidic pH at dual locations. The copolymer consists of a poly(ethylene oxide) block covalently connected through an acid-labile acetal linkage with a thermoresponsive polymethacrylate block containing pendant oligo(ethylene oxide) and disulfide groups. The copolymer undergoes temperature-driven self-assembly in water to form nanoassemblies with acetal linkages at the core/corona interface and disulfide pendants in the core, exhibiting dual reduction/acid responses at dual locations. The physically assembled nanoaggregates are converted to disulfide-core-crosslinked nanogels through disulfide-thiol exchange reaction, retaining enhanced colloidal stability, yet degraded to water-soluble unimers upon reduction/acid-responsive degradation. Further, the copolymer exhibits improved tunability of thermoresponsive property upon the cleavage of junction acetal and pendant disulfide linkages individually and in combined manner. This work suggests that dual location dual reduction/acid-responsive degradation is a versatile strategy toward effective drug delivery exhibiting disulfide-core-crosslinking capability and disassembly as well as improved thermoresponsive tunability.

PMID: 32118189 [PubMed]