Improving the alkaline stability of pepsin through rational protein design using renin, an alkaline-stable aspartic protease, as a structural and functional reference.
Sign Up to like & getrecommendations! Published in 2021 at "Enzyme and microbial technology"
DOI: 10.1016/j.enzmictec.2021.109871
Abstract: The present study sought to identify the structural determinants of aspartic protease structural stability and activity at elevated pH. Various hypotheses have been published regarding the features responsible for the unusual alkaline structural stability of… read more here.
Keywords: protease structural; alkaline stability; stability; aspartic protease ... See more keywords
Imidazolium functionalized block copolymer anion exchange membrane with enhanced hydroxide conductivity and alkaline stability via tailoring side chains
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2018.01.017
Abstract: Abstract To develop polymer electrolyte membrane with both high hydroxide conductivity and good alkaline stability, series of poly(arylene ether sulfone)s block copolymers bearing varied imidazolium functionalized aromatic pendants are synthesized, and the relationship between ionic… read more here.
Keywords: hydroxide conductivity; block; conductivity; alkaline stability ... See more keywords
The alkaline stability and fuel cell performance of poly(N-spirocyclic quaternary ammonium) ionenes as anion exchange membrane
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2021.119325
Abstract: Abstract A series of polymer based on spirocyclic quaternary ammonium (QA) cations having 5-/6- and 6-/6- membered rings were designed and prepared from tetrakis(bromomethyl) monomers to investigate the alkaline and fuel cell stability of spirocyclic… read more here.
Keywords: alkaline stability; membrane; stability; spirocyclic ionenes ... See more keywords
High Hydroxide Ion Conductivity with Enhanced Alkaline Stability of Partially Fluorinated and Quaternized Aromatic Copolymers as Anion Exchange Membranes
Sign Up to like & getrecommendations! Published in 2017 at "Macromolecules"
DOI: 10.1021/acs.macromol.7b00401
Abstract: For enhancing hydroxide ion conductivity, alkaline stability, and fuel cell performance of quaternaized aromatic/perfluoroaklyl copolymer (QPAF) membranes, ammonium groups attached to the polymer backbone have been investigated. The ammonium groups included dimethylbutylamine (DMBA), dimethylhexylamine (DMHA),… read more here.
Keywords: conductivity; ion; alkaline stability; hydroxide ion ... See more keywords
Alkaline Stability of Anion-Exchange Membranes
Sign Up to like & getrecommendations! Published in 2023 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.2c03689
Abstract: Recently, the development of durable anion-exchange membrane fuel cells (AEMFCs) has increased in intensity due to their potential to use low-cost, sustainable components. However, the decomposition of the quaternary ammonium (QA) cationic groups in the… read more here.
Keywords: alkaline stability; exchange; anion exchange; stability ... See more keywords
Hydrophobic Side-Chain Attached Polyarylether-Based Anion Exchange Membranes with Enhanced Alkaline Stability
Sign Up to like & getrecommendations! Published in 2019 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.9b01553
Abstract: In order to improve the alkaline stability of polyarylether-based anion exchange membranes (AEMs), the strategy of attaching a hydrophobic side-chain to the backbone is proposed. A series of AEMs which include three original quaternary ammonia… read more here.
Keywords: hydrophobic side; side chain; exchange; alkaline stability ... See more keywords
High conductivity and alkaline stability of anion exchange membranes containing multiple flexible side-chain piperidinium ions
Sign Up to like & getrecommendations! Published in 2021 at "Materials Chemistry Frontiers"
DOI: 10.1039/d1qm00826a
Abstract: Densely side-chain type anion exchange membranes: Eight flexible piperidinium ions are incorporated in the repeating unit of AEMs, which is conducive to improving their properties, especially for the conductivity and alkaline stability. read more here.
Keywords: anion exchange; piperidinium ions; side chain; alkaline stability ... See more keywords
Aliphatic Anion Exchange Ionomers with Long Spacers and No Ether Links by Ziegler–Natta Polymerization: Properties and Alkaline Stability
Sign Up to like & getrecommendations! Published in 2022 at "Molecules"
DOI: 10.3390/molecules27020395
Abstract: In this work we report the synthesis of poly(vinylbenzylchloride-co-hexene) copolymer grafted with N,N-dimethylhexylammonium groups to study the effect of an aliphatic backbone without ether linkage on the ionomer properties. The copolymerization was achieved by the… read more here.
Keywords: anion exchange; exchange; ziegler natta; alkaline stability ... See more keywords