CN108264628A - A kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch - Google Patents
A kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
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- C08G18/329—Hydroxyamines containing aromatic groups
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
- C08G18/4277—Caprolactone and/or substituted caprolactone
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2280/00—Compositions for creating shape memory
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Abstract
The invention discloses a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, the method step is as follows：Potassium carbonate, diethanol amine, potassium iodide are weighed, adds in DMSO dissolvings, the reaction of 9 bromomethyl anthracene DMSO solutions is added dropwise, filters, is dry, obtaining the monomeric compound containing anthracene structural unit；By esterdiol heating melting in monomeric compound and poly epsilon caprolactone, hexamethylene diisocyanate and catalyst are added in, obtains the prepolymer containing photoresponse group；Prepolymer and polytetrahydrofuran ether glycol heating melting are weighed, hexamethylene diisocyanate and catalyst is added in, then adds in Isosorbide-5-Nitrae butanediol, obtain multi-block polymer；Multi-block polymer is poured into Teflon mould, is placed in baking oven and cures, demoulds, obtains shape-memory polymer.Shape-memory polymer prepared by the present invention can effectively realize the deformation to shape-memory polymer local shape and accurately be controlled with replying.
Description
Technical field
The invention belongs to intelligent macromolecule material technical fields, are related to a kind of preparation method of shape-memory polymer, especially
It is related to a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch.
Background technology
Shape memory polymer material is that intellectual material studies one of field the most active.Due to its shape deformation nature
Higher than the marmem being known, and with recovery of shape is had excellent performance, molding processibility is good, production cost is low
The features such as honest and clean, is widely used in aerospace, biological medicine, wearable flexible material, surface interface intelligent response material etc.
Field.Shape memory polymer material can make polymer by shape A Convert to Shape B by certain appropriate stimulation form,
Wherein shape B is the original-shape of material, and shape A is then by certain fixed temporary shapes of process.Different stimulated item
The shape memory polymer material thoughts heat type of part, electrification magnetic-type, feels water type etc. at photosensitive type, wherein finding earliest and by people
What is be most widely used is sensible heat type shape-memory polymer, other incentive conditions are largely to be indirectly converted into heat or triggering
Deformation is caused to the functional group of incentive condition sensitivity in material.At present, sensible heat type shape-memory polymer is all whole
Shape memory responds, it is difficult to accomplish that the deformation of local shape and reply are accomplished accurately to control, in order to reach the change to local shape
Shape accomplishes accurately to control with reply, and need to design a kind of can lock local shape and be unlocked by cordless
Intelligent switch.Therefore, it is necessary to develop a kind of shape-memory polymer with intelligent shape switch, intelligence shape switch can be real
Now the deformation of local shape is accurately controlled with replying.
Invention content
For above-mentioned the problem of can realizing accurate control to sensible heat type shape-memory polymer local shape, the present invention carries
A kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, shape memory prepared by this method are supplied
Polymer can realize the on-off action to local shape by this non contact type control mode of ultraviolet light, can effectively realize
The deformation of shape-memory polymer local shape is accurately controlled with replying.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, includes the following steps：
（1）It weighs potassium carbonate, diethanol amine, potassium iodide to be placed in round-bottomed flask, adds in DMSO dissolvings, it is molten to weigh 9- bromomethyl anthracenes
In DMSO, then 9- bromomethyl anthracene DMSO solutions are slowly added dropwise in the round-bottomed flask of above-mentioned reaction, control potassium carbonate, two
Ethanol amine, potassium iodide molar ratio be 34 ~ 36：19~21：1, the molar ratio of diethanol amine and 9- bromomethyl anthracenes is 1 ~ 1.1：1,
50 ~ 100 DEG C of 6 ~ 8 h of reaction, then pour into reaction solution in a large amount of deionized waters, are obtained after filtering, drying containing anthracene structure list
The monomeric compound of member；
（2）Monomeric compound containing anthracene structural unit and poly-epsilon-caprolactone glycol are added in round-bottomed flask, control contains anthracene
The monomeric compound of structural unit and the molar ratio of poly-epsilon-caprolactone glycol are 3：Melting is heated at 1 ~ 1.1,50 ~ 80 DEG C, is added in
The molar ratio of hexamethylene diisocyanate, control-NCO group and-OH in reactant are 1.2:1 ~ 1.1, it is anti-to add in weight
The stannous octoate of object gross weight 0.5 ~ 1.5% is answered to react 2 ~ 6 h as catalyst at 50 ~ 80 DEG C, obtain containing photoresponse group
Prepolymer；
（3）It weighs the prepolymer containing photoresponse group and polytetrahydrofuran ether glycol is added in round-bottomed flask, control contains light
It is 0.6 to respond the prepolymer of group and the molar ratio of polytetrahydrofuran ether glycol:Melting is heated at 1 ~ 1.1,50 ~ 80 DEG C, is added in
Hexamethylene diisocyanate, it is 0.5 to control the molar ratio of hexamethylene diisocyanate and polytetrahydrofuran ether glycol:1~
1.1, it is the stannous octoate of reactant gross weight 0.5 ~ 1.5%% as catalyst to add in weight, in 50 ~ 80 DEG C of 2 ~ 4 h of reaction, then
Isosorbide-5-Nitrae-butanediol is added in, it is 0.2 to control the molar ratio of Isosorbide-5-Nitrae-butanediol and hexamethylene diisocyanate:1 ~ 1.1,50 ~
The reaction was continued at 80 DEG C 2 ~ 6 h, obtain multi-block polymer；
（4）Multi-block polymer is poured into Teflon mould, is placed in baking oven, 2 ~ 6 h are cured at 50 ~ 80 DEG C, is taken off
Mould obtains shape-memory polymer.
In the present invention, the step（2）The number-average molecular weight of middle poly-epsilon-caprolactone glycol is 530 ~ 5000.
In the present invention, the step（3）The number-average molecular weight of middle polytetrahydrofuran ether glycol is 250 ~ 3000.
The shape-memory polymer of ultraviolet light intelligence shape switch prepared by the present invention contains a large amount of anthracene structural unit, profit
Reversible cycloaddition characteristic can be carried out under different ultraviolet lights with anthracene structural unit, constructs and provides ultraviolet light intelligence shape switch
Shape-memory polymer.Thus obtained shape-memory polymer has unique ultraviolet light response, is more than 350nm in wavelength
Ultraviolet light under, anthracene structural unit occur cycloaddition so that the polymer network structure degree of cross linking improve, heat resistance improve,
At a temperature of the response of original shape memory, shape-memory properties do not respond, that is, show "Off" in intelligent shape switch
State；Under ultraviolet light of the wavelength less than 300nm, solution crosslinking, polymer network crosslink density drop occur for anthracene structural unit
Low, heat resistance reduces, and the shape-memory properties of polymer are opened by intelligent shape switch, and polymer can at a temperature of original responds
Realize shape recovery process.
Existing method is compared to, the present invention has the following advantages：
（1）The ultraviolet light intelligence shape switch of shape-memory polymer prepared by the present invention can be realized by "on" and "off"
The deformation of shape-memory polymer local shape is accurately controlled with replying.
（2）The ultraviolet light intelligence shape switch of shape-memory polymer prepared by the present invention passes through contactless control
Mode can be realized and carry out remote control to shape-memory polymer.
（3）The ultraviolet light intelligence shape switch of shape-memory polymer prepared by the present invention can multiple Reusability.
Description of the drawings
Fig. 1 carries out the reversible cycloaddition schematic diagram of ultraviolet light for anthracene structural unit.
Fig. 2 is the ultraviolet light intelligence shape switch control process schematic of shape-memory polymer in the present invention.
Specific embodiment
Technical scheme of the present invention is further described with reference to embodiment, however, it is not limited to this, every right
Technical solution of the present invention is modified or replaced equivalently, and without departing from the spirit and scope of technical solution of the present invention, should all be contained
It covers in protection scope of the present invention.
Embodiment 1：
Present embodiments provide a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, the side
Method specific implementation step is as follows：
（1）It weighs 34.00g potassium carbonate, 15.32g diethanol amine, 1.20g potassium iodide to be placed in 250mL round-bottomed flasks, add in
50mL DMSO dissolve, and weigh 6.60g 9- bromomethyl anthracenes and are dissolved in 20mL DMSO, then delay 9- bromomethyl anthracene DMSO solutions
Slowly it is added dropwise in the round-bottomed flask of above-mentioned reaction, reacts 6 h at 80 DEG C, then pour into reaction solution in a large amount of deionized waters, mistake
The monomeric compound containing anthracene structural unit is obtained after filter, drying；
（2）By the poly-epsilon-caprolactone glycol that the monomeric compound containing anthracene structural unit and number-average molecular weight are 530 or so（The two
Molar ratio is 3：1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate（Wherein ,-
NCO group and the molar ratio of-OH in reactant are 1.2:1）, add in the stannous octoate conduct that weight is about reactant gross weight 1% and urge
Agent reacts 4 h at 60 DEG C, obtains the prepolymer containing photoresponse group；
（3）The prepolymer containing photoresponse group and number-average molecular weight are weighed as 1000 or so polytetrahydrofuran ether glycol（Two
Person's molar ratio is about 0.6:1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate
（Its molar ratio with polytetrahydrofuran ether glycol is about 0.5:1）, the stannous octoate that weight is about reactant gross weight 1% is added in,
80 DEG C of reaction 4h, then add in 1,4-butanediol（Its molar ratio with hexamethylene diisocyanate is 0.2:1）, at 80 DEG C
The reaction was continued 2 h, obtain multi-block polymer；
（4）Above-mentioned multi-block polymer is poured into Teflon mould, is placed in baking oven, 4 h are cured at 80 DEG C, is taken off
Mould obtains shape-memory polymer.
The shape memory polyurethane polymer that through this embodiment prepared by the above method, containing a large amount of anthracene structural unit,
Under ultraviolet light of the wavelength more than 350nm, cycloaddition occurs for anthracene structural unit so that the polymer network structure degree of cross linking carries
Height, heat resistance improve, it is achieved thereby that the function of intelligent shape memory switch "Off", is less than the ultraviolet lighting of 300nm in wavelength
It penetrates down, solution crosslinking occurs for anthracene structural unit, and polymer network crosslink density reduces, and heat resistance reduces, it is achieved thereby that intelligent shape
The function of shape memory switch "ON".The deformation that can be achieved by ultraviolet light intelligence shape switch to local shape carries out essence with replying
Really control.Anthracene structural unit carries out the reversible cycloaddition schematic diagram of ultraviolet light as shown in Figure 1, the ultraviolet light intelligence of shape-memory polymer
Energy shape switch control process schematic is as shown in Figure 2.
Embodiment 2：
Present embodiments provide a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, the side
Method specific implementation step is as follows：
（1）It weighs 34.00g potassium carbonate, 15.32g diethanol amine, 1.20g potassium iodide to be placed in 250mL round-bottomed flasks, add in
50mL DMSO dissolve, and weigh 6.60g 9- bromomethyl anthracenes and are dissolved in 20mL DMSO, then delay 9- bromomethyl anthracene DMSO solutions
Slowly it is added dropwise in the round-bottomed flask of above-mentioned reaction, reacts 6 h at 80 DEG C, then pour into reaction solution in a large amount of deionized waters, mistake
The monomeric compound containing anthracene structural unit is obtained after filter, drying；
（2）By the poly-epsilon-caprolactone glycol that the monomeric compound containing anthracene structural unit and number-average molecular weight are 530 or so（The two
Molar ratio is 3：1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate（Wherein ,-
NCO group and the molar ratio of-OH in reactant are 1.2:1）, the stannous octoate that weight is about reactant gross weight 1% is added in, 60
DEG C reaction 4 h, obtain the prepolymer containing photoresponse group；
（3）The prepolymer containing photoresponse group and number-average molecular weight are weighed as 3000 or so polytetrahydrofuran ether glycol（Two
Person's molar ratio is about 0.6:1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate
（Its molar ratio with polytetrahydrofuran ether glycol is about 0.5:1）, the stannous octoate that weight is about reactant gross weight 1% is added in,
80 DEG C of reaction 4h, then add in 1,4-butanediol（Its molar ratio with hexamethylene diisocyanate is 0.2:1）, at 80 DEG C
The reaction was continued 2 h, obtain multi-block polymer；
（4）Above-mentioned multi-block polymer is poured into Teflon mould, is placed in baking oven, 4 h are cured at 80 DEG C, is taken off
Mould obtains shape-memory polymer.
The shape memory polyurethane polymer that through this embodiment prepared by the above method, containing a large amount of anthracene structural unit,
Under ultraviolet light of the wavelength more than 350nm, cycloaddition occurs for anthracene structural unit so that the polymer network structure degree of cross linking carries
Height, heat resistance improve, it is achieved thereby that the function of intelligent shape memory switch "Off", is less than the ultraviolet lighting of 300nm in wavelength
It penetrates down, solution crosslinking occurs for anthracene structural unit, and polymer network crosslink density reduces, and heat resistance reduces, it is achieved thereby that intelligent shape
The function of shape memory switch "ON".The deformation that can be achieved by ultraviolet light intelligence shape switch to local shape carries out essence with replying
Really control.Anthracene structural unit carries out the reversible cycloaddition schematic diagram of ultraviolet light as shown in Figure 1, the ultraviolet light intelligence of shape-memory polymer
Energy shape switch control process schematic is as shown in Figure 2.
Embodiment 3：
Present embodiments provide a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, the side
Method specific implementation step is as follows：
（1）It weighs 34.00g potassium carbonate, 15.32g diethanol amine, 1.20g potassium iodide to be placed in 250mL round-bottomed flasks, add in
50mL DMSO dissolve, and weigh 6.60g 9- bromomethyl anthracenes and are dissolved in 20mL DMSO, then delay 9- bromomethyl anthracene DMSO solutions
Slowly it is added dropwise in the round-bottomed flask of above-mentioned reaction, reacts 6 h at 80 DEG C, then pour into reaction solution in a large amount of deionized waters, mistake
The monomeric compound containing anthracene structural unit is obtained after filter, drying；
（2）By the poly-epsilon-caprolactone glycol that the monomeric compound containing anthracene structural unit and number-average molecular weight are 2000 or so（Two
Person's molar ratio is 3：1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate（Wherein ,-
NCO group and the molar ratio of-OH in reactant are 1.2:1）, the stannous octoate that weight is about reactant gross weight 1% is added in, 60
DEG C reaction 4 h, obtain the prepolymer containing photoresponse group；
（3）The prepolymer containing photoresponse group and number-average molecular weight are weighed as 1000 or so polytetrahydrofuran ether glycol（Two
Person's molar ratio is about 0.6:1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate
（Its molar ratio with polytetrahydrofuran ether glycol is about 0.5:1 ）, the stannous octoate that weight is about reactant gross weight 1% is added in,
4h is reacted at 80 DEG C, then adds in 1,4-butanediol（Its molar ratio with hexamethylene diisocyanate is 0.2:1）, at 80 DEG C
Lower the reaction was continued 2 h, obtain multi-block polymer；
（4）Above-mentioned multi-block polymer is poured into Teflon mould, is placed in baking oven, 4 h are cured at 80 DEG C, is taken off
Mould obtains shape-memory polymer.
The shape memory polyurethane polymer that through this embodiment prepared by the above method, containing a large amount of anthracene structural unit,
Under ultraviolet light of the wavelength more than 350nm, cycloaddition occurs for anthracene structural unit so that the polymer network structure degree of cross linking carries
Height, heat resistance improve, it is achieved thereby that the function of intelligent shape memory switch "Off", is less than the ultraviolet lighting of 300nm in wavelength
It penetrates down, solution crosslinking occurs for anthracene structural unit, and polymer network crosslink density reduces, and heat resistance reduces, it is achieved thereby that intelligent shape
The function of shape memory switch "ON".The deformation that can be achieved by ultraviolet light intelligence shape switch to local shape carries out essence with replying
Really control.Anthracene structural unit carries out the reversible cycloaddition schematic diagram of ultraviolet light as shown in Figure 1, the ultraviolet light intelligence of shape-memory polymer
Energy shape switch control process schematic is as shown in Figure 2.
Embodiment 4：
Present embodiments provide a kind of preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, the side
Method specific implementation step is as follows：
（1）It weighs 34.00g potassium carbonate, 15.32g diethanol amine, 1.20g potassium iodide to be placed in 250mL round-bottomed flasks, add in
50mL DMSO dissolve, and weigh 6.60g 9- bromomethyl anthracenes and are dissolved in 20mL DMSO, then delay 9- bromomethyl anthracene DMSO solutions
Slowly it is added dropwise in the round-bottomed flask of above-mentioned reaction, reacts 6 h at 80 DEG C, then pour into reaction solution in a large amount of deionized waters, mistake
The monomeric compound containing anthracene structural unit is obtained after filter, drying；
（2）By the poly-epsilon-caprolactone glycol that the monomeric compound containing anthracene structural unit and number-average molecular weight are 2000 or so（Two
Person's molar ratio is 3：1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate（Wherein ,-
NCO group and the molar ratio of-OH in reactant are 1.2:1）, the stannous octoate that weight is about reactant gross weight 1% is added in, 60
DEG C reaction 4 h, obtain the prepolymer containing photoresponse group；
（3）The prepolymer containing photoresponse group and number-average molecular weight are weighed as 3000 or so polytetrahydrofuran ether glycol（Two
Person's molar ratio is about 0.6:1）It adds in round-bottomed flask, melting is heated at 80 DEG C, then adds in hexamethylene diisocyanate
（Its molar ratio with polytetrahydrofuran ether glycol is about 0.5:1 ）, the stannous octoate that weight is about reactant gross weight 1% is added in,
4h is reacted at 80 DEG C, then adds in 1,4-butanediol（Its molar ratio with hexamethylene diisocyanate is 0.2:1）, at 80 DEG C
Lower the reaction was continued 2 h, obtain multi-block polymer；
（4）Above-mentioned multi-block polymer is poured into Teflon mould, is placed in baking oven, 4 h are cured at 80 DEG C, is taken off
Mould obtains shape-memory polymer.
The shape memory polyurethane polymer that through this embodiment prepared by the above method, containing a large amount of anthracene structural unit,
Under ultraviolet light of the wavelength more than 350nm, cycloaddition occurs for anthracene structural unit so that the polymer network structure degree of cross linking carries
Height, heat resistance improve, it is achieved thereby that the function of intelligent shape memory switch "Off", is less than the ultraviolet lighting of 300nm in wavelength
It penetrates down, solution crosslinking occurs for anthracene structural unit, and polymer network crosslink density reduces, and heat resistance reduces, it is achieved thereby that intelligent shape
The function of shape memory switch "ON".The deformation that can be achieved by ultraviolet light intelligence shape switch to local shape carries out essence with replying
Really control.Anthracene structural unit carries out the reversible cycloaddition schematic diagram of ultraviolet light as shown in Figure 1, the ultraviolet light intelligence of shape-memory polymer
Energy shape switch control process schematic is as shown in Figure 2.
Claims (5)
- A kind of 1. preparation method of the shape-memory polymer with ultraviolet light intelligence shape switch, it is characterised in that the method Step is as follows：（1）It weighs potassium carbonate, diethanol amine, potassium iodide to be placed in round-bottomed flask, adds in DMSO dissolvings, it is molten to weigh 9- bromomethyl anthracenes In DMSO, then 9- bromomethyl anthracene DMSO solutions are slowly added dropwise in the round-bottomed flask of above-mentioned reaction, control potassium carbonate, two Ethanol amine, potassium iodide molar ratio be 34 ~ 36：19~21：1, the molar ratio of diethanol amine and 9- bromomethyl anthracenes is 1 ~ 1.1：1, 50 ~ 100 DEG C of 6 ~ 8 h of reaction, then pour into reaction solution in a large amount of deionized waters, are obtained after filtering, drying containing anthracene structure list The monomeric compound of member；（2）Monomeric compound containing anthracene structural unit and poly-epsilon-caprolactone glycol are added in round-bottomed flask, control contains anthracene The monomeric compound of structural unit and the molar ratio of poly-epsilon-caprolactone glycol are 3：Melting is heated at 1 ~ 1.1,50 ~ 80 DEG C, is added in The molar ratio of hexamethylene diisocyanate and catalyst, control-NCO group and-OH in reactant are 1.2:1 ~ 1.1, catalysis The addition of agent is the 0.5 ~ 1.5% of reactant gross weight, reacts 2 ~ 6 h at 50 ~ 80 DEG C, obtains the pre-polymerization containing photoresponse group Object；（3）It weighs the prepolymer containing photoresponse group and polytetrahydrofuran ether glycol is added in round-bottomed flask, control contains light It is 0.6 to respond the prepolymer of group and the molar ratio of polytetrahydrofuran ether glycol:Melting is heated at 1 ~ 1.1,50 ~ 80 DEG C, is added in Hexamethylene diisocyanate and catalyst, the molar ratio for controlling hexamethylene diisocyanate and polytetrahydrofuran ether glycol are 0.5:1 ~ 1.1, catalyst charge be reactant gross weight 0.5 ~ 1.5%%, 50 ~ 80 DEG C react 2 ~ 4 h, then add in Isosorbide-5-Nitrae- Butanediol, it is 0.2 to control the molar ratio of Isosorbide-5-Nitrae-butanediol and hexamethylene diisocyanate:1 ~ 1.1, continue at 50 ~ 80 DEG C 2 ~ 6 h are reacted, obtain multi-block polymer；（4）Multi-block polymer is poured into Teflon mould, is placed in baking oven, 2 ~ 6 h are cured at 50 ~ 80 DEG C, is taken off Mould obtains shape-memory polymer.
- 2. the preparation method of the shape-memory polymer according to claim 1 with ultraviolet light intelligence shape switch, It is stannous octoate to be characterized in that the catalyst.
- 3. the preparation method of the shape-memory polymer according to claim 1 with ultraviolet light intelligence shape switch, The number-average molecular weight for being characterized in that the poly-epsilon-caprolactone glycol is 530 ~ 5000.
- 4. the preparation method of the shape-memory polymer according to claim 1 with ultraviolet light intelligence shape switch, The number-average molecular weight for being characterized in that the polytetrahydrofuran ether glycol is 250 ~ 3000.
- 5. the preparation method of the shape-memory polymer according to claim 1 with ultraviolet light intelligence shape switch, It is characterized in that the shape-memory polymer has ultraviolet light response, under ultraviolet light of the wavelength more than 350nm, realizes The function of intelligent shape memory switch "Off"；Under ultraviolet light of the wavelength less than 300nm, intelligent shape memory switch is realized The function of "ON".
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111234169A (en) * | 2020-03-17 | 2020-06-05 | 四川大学 | Intelligent material with controllable surface hydrophobicity/super-hydrophobicity and preparation method thereof |
| CN113337238A (en) * | 2021-03-24 | 2021-09-03 | 北京化工大学 | High-strength light reversible adhesive, preparation method and application |
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| CN111234169A (en) * | 2020-03-17 | 2020-06-05 | 四川大学 | Intelligent material with controllable surface hydrophobicity/super-hydrophobicity and preparation method thereof |
| CN111234169B (en) * | 2020-03-17 | 2021-05-28 | 四川大学 | Intelligent material with controllable surface hydrophobicity/super-hydrophobicity and preparation method thereof |
| CN115073698A (en) * | 2021-03-10 | 2022-09-20 | 东北林业大学 | Photo-induced biodegradable shape memory material |
| CN113337238A (en) * | 2021-03-24 | 2021-09-03 | 北京化工大学 | High-strength light reversible adhesive, preparation method and application |
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