In situ Al-SiOC composite fabricated by in situ pyrolysis of a silicone polymer gel in aluminum melt

2021 ◽  
Author(s):  
Mehran Zare ◽  
Ali Maleki ◽  
Behzad Niroumand
Keyword(s):  
Polymer Gel ◽  
Aluminum Melt ◽  
Silicone Polymer

In Situ Curing Technology for Dual Ceramic Composed by Organic–Inorganic Functional Polymer Gel Electrolyte for Dendritic‐Free and Robust Lithium–Metal Batteries

2020 ◽  
Vol 7 (20) ◽  
pp. 2000830
Author(s):  
Sajid Hussain Siyal ◽  
Muhammad Sufyan Javed ◽  
Ashique Hussain Jatoi ◽  
Jin‐Le Lan ◽  
Yunhua Yu ◽  
...  
Keyword(s):  
Gel Electrolyte ◽  
Polymer Gel ◽  
Lithium Metal ◽  
Polymer Gel Electrolyte ◽  
Functional Polymer ◽  
Lithium Metal Batteries

scholarly journals On-Demand Release of Secondary Amine Bases for the Activation of Catalysts and Crosslinkers

2021 ◽  
Author(s):  
Benjamin Spitzbarth ◽  
Rienk Eelkema
Keyword(s):  
Nmr Spectroscopy ◽  
Secondary Amine ◽  
Self Healing ◽  
Polymer Gel ◽  
Free Base ◽  
H Nmr ◽  
On Demand ◽  
Water Shift ◽  
Reaction Cascades

We demonstrate that the species present in the equilibrium of DCv ureas can be employed in reaction cascades and as triggered organocatalysts. Easily controllable stimuli like heat or addition of water shift the equilibrium towards isocyanate and free base which can function as an in situ released reagent, both catalytically and in an equimolar fashion in different reactions. While applying heat to the system leads to a reversible liberation of amine base, addition of water makes this release irreversible. We demonstrate this application of DCv ureas with two examples via <sup>1</sup>H-NMR spectroscopy. Firstly, we use the liberated base to activate a protected organocatalyst for acylhydrazone formation. Secondly, this base can be employed to trigger the release of nitrile-N-oxides from chlorooximes, which can react with 4-arm PEG-thiols to form a thiohydroximate polymer gel. These findings show the utility of DCv hindered ureas beyond their application in self-healing.

In situ organically cross-linked polymer gel for high-temperature reservoir conformance control: A review

2018 ◽  
Vol 30 (1) ◽  
pp. 13-39 ◽  
Author(s):  
Zulhelmi Amir ◽  
Ismail Mohd Said ◽  
Badrul Mohamed Jan
Keyword(s):  
High Temperature ◽  
Polymer Gel ◽  
Conformance Control

scholarly journals In situ formed polymer gel electrolytes for lithium batteries with inherent thermal shutdown safety features

2019 ◽  
Vol 7 (28) ◽  
pp. 16984-16991 ◽  
Author(s):  
Hongyao Zhou ◽  
Haodong Liu ◽  
Yejing Li ◽  
Xiujun Yue ◽  
Xuefeng Wang ◽  
...  
Keyword(s):  
Lithium Batteries ◽  
Gel Electrolyte ◽  
Polymer Gel ◽  
Lithium Metal ◽  
Lithium Iodide ◽  
Vinylene Carbonate ◽  
Gel Electrolytes ◽  
Polymer Gel Electrolytes ◽  
Safety Features

An in situ formed poly(vinylene carbonate)–lithium iodide gel electrolyte enables stable cycling of lithium metal and a thermal shutdown function.

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