- Anion templated double cyclization assembly of a chloride selective [2]catenane
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The interweaving of two identical acyclic positively charged anion recognizing units around a chloride anion template leads to the formation of an orthogonal supramolecular ensemble which upon subsequent double ring cyclization gives a chloride selective
- Ng, Ka-Yuen,Cowley, Andrew R.,Beer, Paul D.
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- NOVEL TRIAZINE COMPOUND, ALL-SOLID-STATE POLYMER ELECTROLYTE COMPOSITION AND USE THEREOF
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The present invention relates to a novel triazine compound represented by chemical formula 1, an all-solid-state polymer electrolyte composition comprising the same as a cross-linking agent and uses thereof. More specifically, the triazine compound effectively inhibits crystallization of a plasticizer at a low temperature (room temperature) to show significantly improved ion conductivity, and can realize significantly improved electrochemical stability and excellent battery properties, thereby being usefully used as an all-solid-state polymer electrolyte composition such as a lithium-polymer secondary battery, a dye-sensitized solar cell, etc.COPYRIGHT KIPO 2018
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Paragraph 0178-0181
(2018/04/12)
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- Synthesis of Crown Ether Polymers Incorporating 12- and 13-Membered Tetraoxa Rings Linked to Poly(propylene Oxide) and Poly(phosphazene) Backbones and Behaviour of the Lithium-doped Materials
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The synthesis of a set of 12- and 13-membered crown ether polymers is reported.An oxyethylene chain separates the macrocyclic ring from either a poly(propylene oxide) or a poly(phosphazene) backbone.Addition of Li+ ions to these amorphous polymers and the related poly(methacrylate) polymers results in increases in Tg and the 12-O4 polymers show the largest increases.This behaviour is correlated with changes in the 13C NMR spectra of the polymers as Li+ is added, and the relative sensitivity of the 12-O4 polymers is related to their enhanced tendency to form 2:1 complexes (ring : Li+).Parallel observations were found on examination of the ionic conductivities of the lithium-doped materials, with the 13-O4 polymers showing lower conductivities and in the polypropylene oxide-based polymers the backbone did not contribute significantly to the overall charge transport.
- Denness, James E.,Parker, David,Hubbard, Hugh St. V. A.
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p. 1445 - 1454
(2007/10/02)
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