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Preparation method of mesoscale linear organic crystals

An organic crystal and line-shaped technology, which is applied in the field of preparation of mesoscopic-scale line-shaped organic crystals, achieves the effect of low cost, complete crystal lattice, and not easy to agglomerate

Active Publication Date: 2019-05-17
上海多磨新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above methods do not have an effective solution to how to control the direction and size of nanowires. Therefore, how to overcome the above shortcomings and prepare nanowires with controllable size and length is a key problem to be solved in nanomaterial science.

Method used

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  • Preparation method of mesoscale linear organic crystals
  • Preparation method of mesoscale linear organic crystals
  • Preparation method of mesoscale linear organic crystals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] One-dimensional DAST Mesoscopic Scale Organic Crystal Preparation

[0035] Take 0.01-0.13g of DAST crystal raw material, add it into 5ml of anhydrous methanol, and stir at 60°C and 500rad / min for 1.5-4 hours. Take 0.1-1ml of DAST-methanol at room temperature, add it to 10ml of anhydrous methanol, add 0.0002-0.026g of modifier, stir at 800-1200rad / min for 5h, and evaporate under the heating substrate at 50-180 degrees Celsius to obtain a Dimensional DAST Mesoscopic Scale Organic Crystals.

[0036] In this method, due to the influence of the modifier and the material of the substrate, the crystals are aggregated and arranged in one direction, and finally grow into linear crystals. The size direction of the linear organic crystals on the mesoscopic scale changes according to the mass ratio of the modifier to the organic crystals, the temperature of the heated substrate, and the change of the hydrophilicity of the substrate.

Embodiment 2

[0038] One-dimensional DAST Mesoscopic Scale Organic Crystal Preparation

[0039] Take 0.03 g of DAST crystal raw material, add it into 5 ml of anhydrous methanol, and stir at 60° C. and 500 rad / min for 1.5 to 4 hours. Take 0.1ml of DAST-methanol at room temperature, add it to 10ml of anhydrous methanol, add 0.003g of modifier, stir at 800-1200rad / min for 5h, and evaporate under the heating substrate at 60 degrees Celsius to obtain a one-dimensional DAST mesoscale organic crystals.

[0040] The DAST crystals prepared by the method are irregular in shape and have large aggregation phenomenon.

Embodiment 3

[0042] One-dimensional DAST Mesoscopic Scale Organic Crystal Preparation

[0043] Take 0.03 g of DAST crystal raw material, add it into 5 ml of anhydrous methanol, and stir at 60° C. and 500 rad / min for 1.5 to 4 hours. Take 0.1ml of DAST-methanol at room temperature, add it to 10ml of anhydrous methanol, add 0.003g of modifier, stir at 800-1200rad / min for 5h, and evaporate under the heating substrate at 90 degrees Celsius to obtain a one-dimensional DAST mesoscale organic crystals.

[0044] The length of DAST crystals prepared by this method is 150-190 microns.

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Abstract

The invention discloses a mesoscale line-shaped organic crystal; an organic crystal raw material and a modifier are dissolved in an organic solvent and are stirred evenly, then the mixed solution is dripped into a 50-180 DEG C heating substrate and evaporated according to the boiling point of the organic solution, the organic crystal grows in a single direction, and thus the mesoscale line-shaped organic crystal is obtained. In the method, because of fast speed of crystal precipitation, polymerization is too late to perform, the self-assembly process of the solution is generated; with influence of the hydrophilic degree of the heating substrate material, the generation of the mesoscale line-shaped organic crystal is caused; and moreover, the size and direction of the mesoscale line-shaped organic crystal are changed along with change of the modified agent and organic crystal mass ratio, the temperature of the heating substrate and the hydrophilic property of the substrate.

Description

technical field [0001] The invention relates to a method for preparing mesoscale linear organic crystals. Background technique [0002] Nanoscience and technology is one of the main contents of scientific development in the new era and the foundation of high technology in the 21st century. Nanotechnology includes six main parts, namely nanoelectronics, nanophysics, nanochemistry, nanobiology, nanomechanics and nanometrics. Among the six parts, nanoelectronics is the leading one, because it has an important relationship with microelectronic devices that play an important role in human technology, production and life today. Microelectronic devices are the basis of modern computers and automation, and the next generation of its development is nanoelectronic devices. When the substance is as small as 1 to 100 nanometers (10 -9 -10 -7 m), due to its quantum effects, locality of matter, and huge surface and interface effects, many properties of matter undergo qualitative chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/54C30B29/62C30B7/06
CPCC30B7/06C30B29/54C30B29/62
Inventor 蔡斌田甜展鹏张君叶天明
Owner 上海多磨新材料科技有限公司