Unlock instant, AI-driven research and patent intelligence for your innovation.
Azobenzene group-containing photoregulation phase change material as well as preparation and use methods of azobenzene group-containing photoregulation phase change material
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of azophenyl group and azophenyl group, which is applied in the field of light-controlled phase change materials to achieve the effect of overcoming uncontrollability, wide application prospects and better compatibility
Inactive Publication Date: 2022-01-18
苏州妥璞智能科技有限公司
View PDF0 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0002] The object of the present invention is to provide a light-adjustable phase change material containing azobenzene group and its preparation and use method, the purpose of which is to solve the phase change by introducing azobenzene compound into the phase change composite material To solve the controllability problem of the process, create a light-adjustable phase-change material containing azophenyl group with more industrial value and its preparation and use method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0039] Preparation of 4-tridecyloxyazobenzene
[0040] Step 1, 4-hydroxyazobenzene (194.6mg, 0.001mol), 1-bromotridecane (474mg, 0.0018mol), anhydrous K 2 CO 3 (1380mg, 0.01mol), KI (133mg, 0.0008mol), and acetone (25ml) were mixed, placed in a three-necked flask, and refluxed at 67°C for 28h;
[0041] Step 2. After the reflux is completed, the mixture is poured into 120 ml of cold aqueous solution to remove inorganic salts, and filtered to obtain an orange-yellow solid, and the precipitate is dried to obtain a crude product;
[0042] Step 3. Purification of the crude product: recrystallize the crude product with ice petroleumether, filter the precipitate, place in a vacuum oven at 63° C., and dry for 24 hours to obtain a pale yellow product.
Embodiment 2
[0044] Preparation of 4-tridecyloxyazobenzene
[0045] 1. Combine 4-hydroxyazobenzene (240.2mg, 1.2mmol), 1-bromotridecane (632.1mg, 2.4mmol), anhydrous K 2 CO 3 (1.656g, 12mmol), KI (180mg, 1.08mmol), and acetone (35ml) were mixed, placed in a three-necked flask, and refluxed at 65°C for 24h;
[0046] Step 2. After the reflux is completed, the mixture is poured into 200 ml of cold aqueous solution to remove inorganic salts, and filtered to obtain an orange-yellow solid, and the precipitate is dried to obtain a crude product;
[0047] Step 3. Purification of the crude product: recrystallize the crude product with ice petroleumether, filter the precipitate, place in a vacuum oven at 60° C., and dry for 26 hours to obtain a light yellow product.
Embodiment 3
[0049] Preparation of 4-tridecyloxyazobenzene
[0050] Step 1, 4-hydroxyazobenzene (208.5mg, 1.05mmol), 1-bromotridecane (394.5mg, 1.5mmol), anhydrous K 2 CO 3 (1449mg, 1.05mmol), KI (150mg, 0.9mmol), and acetone (30ml) were mixed, placed in a three-necked flask, and refluxed at 72°C for 20h;
[0051] Step 2. After the reflux is completed, the mixture is poured into 150 ml of cold aqueous solution to remove inorganic salts, and filtered to obtain an orange-yellow solid, and the precipitate is dried to obtain a crude product;
[0052] Step 3, crude product purification: recrystallize the crude product with ice n-hexane, filter the precipitate, place in a vacuum oven at 58° C., and dry for 24 hours to obtain a light yellow product.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention relates to preparation and use methods of an azobenzene group-containing photoregulation phase change material. The preparation method comprises the following steps: adding halogenated aliphatic hydrocarbon into an acetonesolvent, adding anhydrouspotassiumcarbonate and potassiumiodide, grafting an azobenzene group onto the halogenated aliphatic hydrocarbon under the catalytic auxiliary action of the anhydrouspotassiumcarbonate and potassium iodide, purifying a product obtained in the previous step to obtain a block type compound containing the azobenzene group and groups capable of generating phase change, doping the block type compound body with a basic phase change material, and performing light irradiation with photosensitive wavelength in a heat absorption and heat release phase change process to realize the light control function of the phase change material through cooperation with and utilization of the light controllability of the azobenzene group and the thermal phase change characteristic of basic phase change groups. The invention provides the azobenzene group-containing photoregulation phase-change material capable of realizing phase change by adjusting light, and the preparation method and the use method thereof.
Description
technical field [0001] The invention relates to a light-adjustable phase-change material containing an azophenyl group and a preparation and use method thereof, belonging to the technical field of light-controlled phase-change materials. Background technique [0002] The object of the present invention is to provide a light-adjustable phase change material containing azobenzene group and its preparation and use method, the purpose of which is to solve the phase change by introducing azobenzene compound into the phase change composite material In order to solve the problem of controllability of the process, create a light-adjustable phase-change material containing an azophenyl group with more industrial value and its preparation and use method. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a light-adjustable phase-change material containing azophenyl group under variable temper...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More