- One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries
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We demonstrated a one-step synthesis method for a novel gel polymer electrolyte (named PDMP-Li GPE) based on 3-(dimethylamino) propyl methacrylate, poly(ethylene glycol) diacrylate and 1 M LiPF6 liquid electrolyte solution by a γ-radiation technique for lithium-ion batteries. The resultant PDMP-Li GPE exhibited good thermal stability, excellent mechanical strength and high ionic conductivity, and the highest ionic conductivity reached 8.88 × 10-3 S cm-1 at 25 °C. The LiFePO4/PDMP-Li GPE/graphite pouch-type cell exhibited more than 97% columbic efficiency and the capacity retention was about 86% after 50 cycles at 0.1C. With these outstanding characteristics, it is expected to be a promising candidate for the application in polymer lithium-ion batteries.
- Wang, Yimeng,Qiu, Jingyi,Peng, Jing,Li, Jiuqiang,Zhai, Maolin
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- Supramolecular interaction controlled diffusion mechanism and improved mechanical behavior of hybrid hydrogel systems of zwitterions and cnt
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Hybrid hydrogels of poly(N-isopropylacrylamide) (pNIPAM) containing carboxylate carbon nanotubes (CNTs) and/or zwitterions are synthesized by free radical polymerization. The supramolecular interactions among zwitterionic monomers and CNTs influence the m
- Hashmi, Saud,Ghavaminejad, Amin,Obiweluozor, Francis O.,Vatankhah-Varnoosfaderani, Mohammad,Stadler, Florian J.
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- (Meth) acrylic acid ester manufacturing method of N, N-substituted amino alcohol
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The present invention relates to a process for preparing (meth)acrylic esters (F) of N,N-substituted amino alcohols, by transesterifying N,N-substituted amino alcohols (I) in which Y and Z are each independently C1-C20-alkyl, C3-C15-cycloalkyl, aryl, or Y and Z together with the nitrogen atom connecting them form a 5- to 9-membered saturated heterocyclic radical which optionally has oxygen, sulfur, nitrogen or C1-C4-alkyl-substituted nitrogen as a further heteroatom, and X is C2-C20-alkylene which may be interrupted by 1 to 10 nonadjacent oxy groups and/or unsubstituted or methoxy-substituted C1-C4-alkylimino groups, or C3-C15-cycloalkylene, with at least one (meth)acrylic ester (D) in the presence of at least one heterogeneous catalyst (K), wherein the heterogeneous catalyst (K) is used without any further solvent and the content of polymerization inhibitors in the reaction mixture is 450 ppm, and to the use of the (meth)acrylic esters (F) of N,N-substituted amino alcohols.
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Paragraph 0100-0102
(2017/02/23)
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- BIOCOMPATIBLE, BIOMIMETIC AMPHOLYTE MATERIALS
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New ampholyte biomaterial compounds containing ampholyte moieties are synthesized and integrated into polymeric assemblies to provide hydrophilic polymers exhibiting improved biocompatibility, haemocompatibiiity, hydrophihcity non-thrombogenicity, anti-bacterial ability, and mechanical strength, as well as suitability as a drug delivery platform
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Page/Page column 20-21
(2013/02/28)
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- PROCESS FOR PREPARING (METH)ACRYLIC ESTERS OF N,N-SUBSTITUTED AMINO ALCOHOLS
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The present invention relates to a process for preparing (meth)acrylic esters (F) of N,N-substituted amino alcohols, by transesterifying N,N-substituted amino alcohols (I) in which Y and Z are each independently C1-C20-alkyl, C3-C15-cycloalkyl, aryl, or Y and Z together with the nitrogen atom connecting them form a 5- to 9-membered saturated heterocyclic radical which optionally has oxygen, sulfur, nitrogen or C1-C4-alkyl-substituted nitrogen as a further heteroatom, and X is C2-C20-alkylene which may be interrupted by 1 to 10 nonadjacent oxy groups and/or unsubstituted or methoxy-substituted C1-C4-alkylimino groups, or a C3-C15-cycloalkylene, with at least one (meth)acrylic ester (D) in the presence of at least one heterogeneous catalyst (K), wherein the heterogeneous catalyst (K) is used without any further solvent and the content of polymerization inhibitors in the reaction mixture is 450 ppm, and to the use of the (meth)acrylic esters (F) of N,N-substituted amino alcohols.
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Page/Page column 6
(2012/04/05)
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