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Composite materials comprising mechanical ligands

A technology of composite materials and ligands, applied in the fields of nanotechnology, inorganic chemistry, carbon compounds, etc. for materials and surface science, which can solve problems such as reducing the strength of carbon nanotubes

Pending Publication Date: 2020-10-30
纳诺科尔有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, covalent functionalization of CNT surfaces usually reduces the strength of CNTs

Method used

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  • Composite materials comprising mechanical ligands
  • Composite materials comprising mechanical ligands
  • Composite materials comprising mechanical ligands

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 9

[0689] A similar principle is used in Example 9,D. Here, the linker connecting ML (here attached to the nanotube) and SE2 (here the polymer molecule) comprises two ligands with affinity for the nanotube. As described in Example 9,D, this acts as a molecular shock absorber.

[0690] covalent bond.

[0691] Mechanoligands as well as Ligand 2 typically contain one or more covalent bonds. The ligand 2 capable of covalently linking the SE to the linker may contain functional groups such as OH, COOH, NH2, SH and CO, but may be any atom or molecule capable of forming a chemical bond with another atom or molecule. A number of reactive / functional groups are shown below, along with the covalent bonds each pair of functional groups can form. These functional groups and the covalent bonds they form can be included in SE, Linker, Pre-ML, ML and Ligand 2 of the present invention:

[0692] Group 6: Reactive groups and covalent bonds formed upon reaction.

[0693]

[0694] Covalent ...

Embodiment approach

[0922] polymers and additives. In a preferred embodiment, the matrix of the composite material is non-polar. As a result, as mentioned above, non-polar additives (e.g. CNTs, graphene) will generally be more efficiently incorporated into the polymer, making the composite more homogeneous, which is often an advantage. On the other hand, due to the non-polarity of the matrix and the polarity of the additive, the polar additive may in some cases have a strong influence on the electronic and thermal properties of the composite compared to the matrix material without the additive. In some cases, this may be advantageous, for example, when used in sensor applications. Therefore, a preferred embodiment is a composite material in which the matrix (SE2) is non-polar and the additive (SE1) is polar. Another preferred embodiment is a composite material where SE1 is non-polar and the other structural entities of the same CMU are polar (ie SE2 is polar).

[0923] nano sensor. The rema...

Embodiment 11

[6641] Ring closure of a linear molecule surrounding a single-walled carbon nanotube to form a ring-shaped molecule as a mechanoligand, i.e., leads to the formation of the SE1-ML complex.

[6642] In this example, the SE1-ML complex is formed by first binding the precursor-ML to SE1 and then reacting the two ends of the precursor-ML to form a closed loop around SE1. SE1 is a single-walled carbon nanotube (SWNT), the precursor-ML is a linear molecule, and the mechanoligand (ML) is tetrathiafulvalene (exTTF), pyrene, or naphthalimide (NDI) containing a π extension The closed-loop structure of the motif.

[6643] This example is from de Juan et al. (Angew. Chem. 2014, 53(21), 5394-5400, DOI: 10.1002 / anie.201402258). Briefly, 20 mg of single-walled carbon nanotubes ((7,6)-enriched SWNTs, (0.7–1.1 nm in diameter, 90% pure after purification) purchased from Sigma-Aldrich) were dispersed by sonication In 20ml of tetrachloroethane (TCE), and at room temperature with 10mg ( Figure ...

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Abstract

Composite material units (CMU) of the structure (SE1-ML-LinkerL-Ligand2-SE2), are provided, wherein ML is a Mechanical Ligand, LinkerL is a chemical bond or entity that covalently links ML and Ligand2, Ligand2 is a chemical entity that is covalently linked to the structural entity SE2, or forms a mechanical bond with the structural entity SE2, and SE1 and SE2 are structural entities.

Description

[0001] introduction Technical field [0002] Composite materials, especially those where material strength is important. Background technique [0003] Composite materials usually consist of polymer parts and one or more additives. Polymers and additives are usually mixed during the preparation of composites. In the resulting composite, there are usually only weak interactions between the polymer and the additive components; however, the interactions can also be strong, and sometimes the polymer and additive are even held together by covalent bonds. Properties of composite materials, such as strength, are often weakened due to such weak interactions between the different components of the composite material. [0004] Although carbon nanotubes themselves are very strong, it is difficult to create high-strength carbon nanotube composites. This is partly because carbon nanotubes are difficult to anchor effectively in composite materials. Covalent bonding of carbon nanotubes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/00B82Y30/00B82Y40/00C04B28/02C04B35/10C04B35/48C04B35/50C04B35/56C04B35/565C04B35/58C04B35/80C08K9/04C08K9/08C01B32/152C01B32/174C01B32/194
CPCB82Y30/00C04B28/02C04B35/10C04B35/48C04B35/565C08J5/005C08K9/04C08K9/08C08J2323/06C08J2363/00C08J2367/00C08J2369/00C08J2375/04C08J2377/06C01B32/152C01B32/174C01B32/194C08K3/041C08K3/042C04B2235/5288C04B2235/96C04B2235/5284C04B2235/524C04B35/584C04B35/5626C04B35/491C04B35/62844C04B2235/80Y02W30/91C04B35/80C08L25/06C04B14/026C04B14/06C04B14/106C04B18/08C04B18/141C04B18/146C04B2103/10C04B2103/20C04B2103/32C04B14/024B82Y40/00
Inventor 亨里克·佩德森米科尔·蒂波·伦多夫托雷·德林克里斯蒂安·贝内迪克·奥雷亚·尼尔森
Owner 纳诺科尔有限公司
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