CN101481440A - Liquid crystal polymer material and composite material realizing photo-induced deformation by visible light irradiation - Google Patents
Liquid crystal polymer material and composite material realizing photo-induced deformation by visible light irradiation Download PDFInfo
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- CN101481440A CN101481440A CNA2009100459030A CN200910045903A CN101481440A CN 101481440 A CN101481440 A CN 101481440A CN A2009100459030 A CNA2009100459030 A CN A2009100459030A CN 200910045903 A CN200910045903 A CN 200910045903A CN 101481440 A CN101481440 A CN 101481440A
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Abstract
The invention provides a novel photo-induced deformation liquid crystal polymer material and a compound material; the polymer material is deformed under the irradiation of visible light at the room temperature and heating or the visible light irradiation is carried out for restoring the original shape. The polymer material and the compound material are used in the fields of micro-actuators, artificial muscles, and the like.
Description
Technical field
The invention belongs to the liquid crystal high polymer material field, be specifically related to a kind of new photo-induced deformation liquid crystal macromolecular material and matrix material, this macromolecular material is at room temperature realized deformation through visible light radiation, can recover deformation again through heating or visible light radiation again.
Background technology
Photo-induced deformation liquid crystal macromolecular material is a kind of intelligent shape-changing material by light guide.Be embodied in: when material is subjected to rayed, (be generally UV-light), its internal structure generation isomerization reaction and reduce the order of liquid crystal molecule, pass through the cooperative motion of polymer segment in the crosslinked liquid crystal network again, make the state generation noticeable change of macromolecular chain, material produces photo-deformable on macroscopic view, thereby realizes the direct conversion from luminous energy to mechanical energy.Use the rayed or the heating of other wavelength after illumination stops instead, material can restore to the original state again.Therefore be a reversible working cycle from photo-deformable to the whole process of recovering, material can be recycled and tangible fatigue phenomenon can not occur.A kind of energy of cleaning only, realize quick, accurate and Long-distance Control easily, so the photo-deformable material becomes the new focus of people's research, can be used for making intelligence sensor and driving mechanism, all have a wide range of applications at artificial-muscle, microsensor, photoswitch and aviation field.
The chemical structure of photo-induced deformation liquid crystal macromolecular material need have the organic chromophores of optical Response, therefore generally will be incorporated in the liquid crystal system such as photochromic molecules such as nitrogen benzide, benzo spiro-pyrans, fulgide, stilbene.With the nitrogen benzide is example, cis-trans isomerism can take place when trans nitrogen benzide bar-shaped in the system is subjected to UV-irradiation change the cis-structure that forms the V font, thereby upset the ordered arrangement of liquid crystal molecule.After the nitrogen benzide chromophoric group was received on the macromolecular chain, its cis-trans isomerism variation can cause the conformational change of high polymer main chain and side chain, the change of simultaneous macromolecular solution and solid physicals and chemical property.Azobenzene group meets the requirement of liquid crystal liquid crystal property molecule because of its bar-shaped constitutional features in this individual system, so play the part of the role of mesomorphic unit simultaneously.Because the ordered arrangement characteristic of liquid crystal makes the nitrogen benzide mesomorphic unit under the light action of specific wavelength, and more consistent metamorphosis takes place, again by with the coupling of macromolecular chain, thereby the material deformation of realization microcosmic on the macroscopic view.
Relevant in the past containing in the research of the chromophoric liquid crystal elastic body of nitrogen benzide it has been found that this material has a kind of special photoresponse performance, and the contraction even the three-dimensional crooked deformation of one dimension, two dimension can take place after absorbing luminous energy.Because liquid crystal elastic body has the dual nature (being elasticity and order) of elastomerics and liquid crystal concurrently, compare character with the non-crosslinked type liquid crystal polymer with many uniquenesses, has good outfield responsiveness and molecule synergy, comprise spontaneously reversible deformation behavior i.e. " soft elasticity " etc., and this reversible deformation has advantages such as deformation quantity is big, good reversibility, thereby liquid crystal elastic body has tempting development prospect in the intelligent material field.
Yet, the second-order transition temperature of employed crosslinked liquid crystal high polymer material higher (greater than 50 ℃) in research work in the past, photic crooked behavior need could take place under the heated condition of material, so, be unfavorable for miniaturization of devices, and, the excitation light source of the photo-deformable UV-light (200710038100.3,200810032771.3) that adopt less than 380nm more, human body is had certain injury or the like, these weak points directly have influence on the application of material.In view of these reasons, the invention provides and a kind ofly can be at room temperature realize deformation and recover the crosslinked liquid crystal high polymer material and the compound material thereof of deformation under visible light radiation or heating condition by visible light radiation, it have overcome the shortcoming that the higher and exciting light of current material glass transition temperature material degree uses UV-light.The present invention also further provides the synthetic method of described liquid crystal high polymer material and the preparation method of matrix material thereof.Described liquid crystal high polymer material and matrix material thereof can be used for fields such as microactrator, artificial-muscle.
Summary of the invention
One of purpose of the present invention provides and a kind ofly can be at room temperature realize deformation and the crosslinked liquid crystal high polymer material that recovers by visible light radiation under the radiation of visible light or the condition of heating, it is characterized in that, at first organic synthesis goes out monomer X and linking agent Y, and then mix with a certain amount of light trigger or thermal initiator, put into reactor, select suitable light intensity or temperature of reaction, generate liquid crystal high polymer material by photopolymerization reaction or heat polymerization;
Wherein, the general formula of described monomer X is:
D
1——A
1——R
The general formula of described linking agent Y is:
D
2——A
2——D
3
Wherein R is H, or C
1-C
20Replacement or unsubstituted alkyl or alkoxyl group, or have the polar end group; A
1, A
2A kind of group or two kinds of group or three kinds of structural bonds with correspondence that form with the structural bond link of correspondence of being selected from the following structure link the group that forms,
—B
1—C≡C—B
2— —B
1—CH＝CH—B
2— —B
1—N＝N—B
2—
A
1, A
2Structure identical or different, in above-mentioned group, B, B
1, B
2Be replacement or unsubstituted aliphatics ring, aromatic ring, condensed ring, heterocycle, or their corresponding derivatives, B, B
1, B
2Structure identical or different, but A
1, A
2The conjugated structure that one of them contains nitrogen benzide at least is not limited to following structure,
Wherein, D
1～D
3Be to contain the group that can carry out polymeric carbon-carbon double bond structure, they independently are selected from a kind of in the following structure, D
1～D
3Structure is identical or different,
R wherein
1Be H or CH
3R
2Be H, perhaps in the monomer general formula, do not occur, or C
1-C
20Replacement or unsubstituted alkyl or alkoxyl group, alkylthio, alkylamino, dialkylamino, alkyloyl, alkanoyloxy, alkyl amide, alkane alkylsulfonyl, or their corresponding derivatives.
In an optimized technical scheme, R is C preferably
1～C
12Replacement or unsubstituted alkyl or alkoxyl group, or have the polar end group, described have the polar end group preferably from F, Cl, Br, I or ester group.
In an optimized technical scheme, R
2C preferably
1～C
12Replacement or unsubstituted alkyl, described alkyl can be saturated or unsaturated, or is selected from alkoxyl group.
The molar ratio of monomer and linking agent is 99:1-1:99 among the present invention.In an optimized technical scheme, be preferably 95:5-50:50.
Wherein, the light trigger that the present invention relates to is selected from organic carbonyl complex and organo-metallic compounds, and preferably from Irgacure 784, Irgacure 819, their structural formula is as follows:
The thermal initiator that the present invention relates to is selected from azo compound, preferably from Diisopropyl azodicarboxylate, 2,2'-Azobis(2,4-dimethylvaleronitrile).
Wherein, the selected light trigger or the consumption of thermal initiator are 0.1%-10% of monomer and linking agent mole number sum, preferably 1%-5%.
Wherein, selected wavelength region is 300nm-800nm when carrying out photopolymerization, preferably 400nm-600nm; The light intensity scope is 0.1mW/cm
2-20mW/cm
2, 1mW/cm preferably
2-10mW/cm
2Carrying out photopolymerisable polymerization time scope is 0.5h-20h, preferably 2h-10h; The polymerization temperature scope is 50 ℃-200 ℃, preferably 80 ℃-150 ℃.
The polymerization time scope of carrying out thermopolymerization is 1h-100h, preferably 3h-50h; The polymerization temperature scope is 20 ℃-200 ℃, preferably 40 ℃-150 ℃.
Another object of the present invention provides a kind of method that makes liquid crystal high polymer material produce deformation and recovery, it is characterized in that, at room temperature promptly can make material generation deformation by radiation of visible light, the radiation of visible light of process or heating can be returned to initial state again again.
In aforesaid method, the wavelength of visible light of control material deformation is 380nm-480nm, and light intensity is at 1mW/cm
2-300mW/cm
2, be preferably 5mW/cm
2-50mW/cm
2The wavelength of visible light that material is restPosed is 500nm-800nm, and intensity is 1mW/cm
2-300mW/cm
2,, be preferably 10mW/cm
2-100mW/cm
2
A further object of the present invention provides a kind of matrix material, and described matrix material comprises three-decker, and the first layer is crosslinked liquid crystal high polymer material, and thickness is 5 μ m-100 μ m; Middle one deck is the compound agent layer that sticks with glue, and tackiness agent is selected from a kind of in cyanoacrylate, polyurethanes, acrylic acid or the like, the polyacrylic, and its thickness is 1 μ m-100 μ m; The 3rd layer is the flexible substrate material, is selected from a kind of in polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polycarbonate (PC), the natural rubber (NR), and its thickness is 5 μ m-5mm.
In an optimized technical scheme, the thickness of described crosslinked liquid crystal high polymer material is 40 μ m-60 μ m, and the thickness of described adhesive layer is 5 μ m-30 μ m, and the thickness of described flexible substrate material is 30 μ m-70 μ m.
The invention provides a kind of new photo-induced deformation liquid crystal macromolecular material and matrix material, this macromolecular material is at room temperature realized deformation through visible light radiation, can recover deformation again through heating or visible light radiation again.This macromolecular material and matrix material can be used for fields such as microactrator, artificial-muscle.
Description of drawings
Fig. 1 is the Experimental equipment of synthesizing cross-linked liquid crystal high polymer material in the embodiment of the invention, and wherein the implication of mark is: 1-light source, 2-interval insulant, 3-frictional direction, 4-warm table, 5-substrate, 6-liquid crystal cell;
Fig. 2 is the photo-deformable and the reversible Recovery Process synoptic diagram of liquid crystal high polymer material in the embodiment of the invention, wherein the implication of mark is: the 7-substrate, the crosslinked liquid crystal high polymer material of 8-, the 9-frictional direction, the 10-visible light, the crosslinked liquid crystal high polymer material of deformation takes place in 11-, the 12-visible light, and 13-replys the crosslinked liquid crystal high polymer material of original state.
Embodiment
Now, the one's own profession invention is further described according to accompanying drawing.With monomer vinylformic acid-12-{4-[(4 '-(4 "-ethoxyl phenenyl ethynyl)-2 '-methyl) phenylazo] phenoxy group } synthetic, the polymerization, the crosslinked liquid crystal high polymer material after the polymerization of ten diester (A12ABT) and linking agent 4,4 '-two [12-(acryloxy) dodecyloxy] nitrogen benzide (DA12AB) and poly compound and photo-deformable and recovery carry out the specific embodiment explanation.
Present embodiment has illustrated the synthetic method of 2-methyl-4-bromo-4 '-hydroxyazobenzene.At first 5.0g 2-methyl-4-bromaniline is dissolved in the HCl solution (1mol/L) of 30mL, the aqueous solution 12mL that adds the 1.9g Sodium Nitrite, at 0 ℃～5 ℃ mixed aqueous solution 12mL that stir and add 3.7g salt of wormwood and 2.6g phenol down, reaction 3h, suction filtration obtains crude product.Obtain product 2-methyl-4-bromo-4 '-hydroxyazobenzene 5.6g after purified.
Present embodiment has illustrated the synthetic method of 2-methyl-4-bromo-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide.Synthetic 5.6g 2-methyl-4-bromo-4 '-hydroxyazobenzene among the embodiment 1 is dissolved in 100mL N, in the dinethylformamide (DMF), adds 5.2g salt of wormwood, 10.6g 12-bromo-1-dodecyl alcohol, 100 ℃ of heated and stirred reaction 3h.Reactant finishes the back and adds distilled water, and suction filtration obtains crude product.Obtain product 2-methyl-4-bromo-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide 7.8g after purified.
Present embodiment has illustrated the synthetic method of 2-methyl-4-(trimethylsilyl acetylene base)-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide.In a three-necked bottle, add synthetic 7.8g 2-methyl-4-bromo-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide among the embodiment 2,40g trimethylsilyl acetylene, 1.5g triphenyl phosphorus, 1.0g bi triphenyl phosphorus palladium chloride (PdCl
2(PPh
3)
2), the 3mL triethylamine is dissolved under nitrogen protection in the tetrahydrofuran (THF) (THF), stirs 6h down at 50 ℃.After extracting drying, obtain crude product, obtain product 2-methyl-4-(trimethylsilyl acetylene base)-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide 5.9g after purified again.
Present embodiment has illustrated the synthetic method of 2-methyl-4-ethynyl-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide.In the flask of 500mL, synthetic 5.9g 2-methyl-4-(trimethylsilyl acetylene base)-4 ' among the embodiment 3-(12-hydroxyl dodecyloxy) nitrogen benzide and 4.2g salt of wormwood are joined in the 500mL methyl alcohol, react 10h under the room temperature.After extracting drying, obtain crude product, obtain product 2-methyl-4-ethynyl-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide 1.9g after purified again.
Present embodiment has illustrated the synthetic method of 2-methyl-4-(4 "-phenetole ethynyl)-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide.In a three-necked bottle, with synthetic 1.9g 2-methyl-4-ethynyl-4 ' among the embodiment 4-(12-hydroxyl dodecyloxy) nitrogen benzide, 1.1g is to the oxyethyl group iodobenzene, 0.5g triphenyl phosphorus, 0.3gPdCl
2(PPh
3)
2, the 0.5mL triethylamine is dissolved among the THF under nitrogen protection, stirs 10h down at 60 ℃.After extracting drying, obtain crude product, obtain product 2-methyl-4-(4-phenetole ethynyl)-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide 0.8g after purified again.
Present embodiment has illustrated vinylformic acid-12-{4-[(4 '-(4 "-ethoxyl phenenyl ethynyl)-2 '-methyl) phenylazo] phenoxy group } synthetic method of ten diester (A12ABT).In a three-necked bottle, with synthetic 0.8g 2-methyl-4-among the embodiment 5 (4 "-phenetole ethynyl)-4 '-(12-hydroxyl dodecyloxy) nitrogen benzide, the 0.3mL triethylamine is dissolved among the THF, drip the 0.2mL acrylate chloride after, at room temperature react 24h.After extracting drying, obtain crude product, obtain product A 12ABT0.5g after purified again.
Embodiment 7
Present embodiment has illustrated the synthetic method of 4-(12-hydroxyl dodecyloxy) oil of mirbane.In a three-necked bottle, the 1.7g p-NP is dissolved among the DMF, add 1.7g salt of wormwood, add 3.2g 12-bromo-1-lauryl alcohol then, back flow reaction 3h.Reaction back adds distilled water, and suction filtration gets crude product, obtains product 4-(12-hydroxyl dodecyloxy) oil of mirbane 3.4g after purified again.
Embodiment 8
Present embodiment has illustrated the synthetic method of 4-(12-hydroxyl dodecyloxy) aniline.In a three-necked bottle, 3.4g (12-hydroxyl dodecyloxy) oil of mirbane is dissolved among the THF, behind adding 0.5g 5%Pd/C and the 1.7g sodium borohydride, stirring reaction 2h, add the hydrochloric acid neutralization, get crude product, obtain product 4-(12-hydroxyl dodecyloxy) aniline 2.7g after purified again through suction filtration.
Embodiment 9
Present embodiment has illustrated the synthetic method of 4 '-hydroxyl-4-(12-hydroxyl dodecyloxy) nitrogen benzide.In beaker, 2.7g 4-(12-hydroxyl dodecyloxy) aniline is dissolved in the HCl solution, the aqueous solution 5mL that under 0 ℃～5 ℃ condition, adds Sodium Nitrite 0.6g, stirring reaction 2h, the aqueous solution that adds phenol 0.9g, sodium hydroxide 0.4g, stirring reaction 3h, suction filtration obtains solid, obtains product 4 '-hydroxyl-4-(12-hydroxyl dodecyloxy) nitrogen benzide 2.8g behind the purifying.
Embodiment 10
Present embodiment has illustrated 4, the synthetic method of 4 '-two (12-hydroxyl dodecyloxy) nitrogen benzide.In a three-necked bottle, 2.8g4 '-hydroxyl-4-(12-hydroxyl dodecyloxy) nitrogen benzide is dissolved among the DMF, add 0.5g salt of wormwood and 1.8g12-bromine lauryl alcohol, 100 ℃ of following stirring reaction 4h.Reaction finishes the back and adds distilled water, and suction filtration gets crude product, obtains product 4 behind the purifying, 4 '-two (12-hydroxyl dodecyloxy) nitrogen benzide 3.1g.
Embodiment 11
Present embodiment has illustrated 4, the synthetic method of 4 '-two [12-(acryloxy) dodecyloxy] nitrogen benzide (DA12AB).In a three-necked bottle, with 3.1g 4,4 '-two (12-hydroxyl dodecyloxy) nitrogen benzide, 1.1g triethylamine join among the THF, and agitation condition adds 1.0g acrylate chloride, stirring reaction 24h under the room temperature down.After extracting drying, obtain crude product, obtain product 4,4 '-two [12-(acryloxy) dodecyloxy] nitrogen benzide (DA12AB) 0.8g after purified again.
Embodiment 12
This embodiment has illustrated according to A12ABT that obtains in the embodiment of the invention 6,11 and DA12AB and has carried out the method that photopolymerization prepares liquid crystal high polymer material.See also shown in Figure 1, at first A12ABT and DA12AB are pressed mole number 90:10 proportioning, the light trigger Irgacure 784 that adds A12ABT and DA12AB mole number sum 5% then, inject two liquid crystal cells 6 that substrate 5 is made after the fusion, two 5 of substrates have been placed the certain interval insulant 2 of diameter makes the certain interval of maintenance between the two substrates 5 to control the thickness of prepared crosslinked liquid crystal high polymer material, the internal surface of substrate 5 is directed and rubbed, in order that mesomorphic unit is aligned along frictional direction, frictional direction 3 is asked for an interview shown in the figure, then with 110 ℃ of warm table 4 control reaction temperature, and the wavelength that is sent at light source 1 is greater than 545nm, and light intensity is 5mW/cm
2The following reaction 6h of illumination, open liquid crystal cell 6 and obtain crosslinked liquid crystal high polymer material.
Embodiment 13
This embodiment has illustrated according to A12ABT that obtains in the embodiment of the invention 6,11 and DA12AB and has carried out the method that thermopolymerization prepares liquid crystal high polymer material.At first A12ABT and DA12AB are pressed mole number 90:10 proportioning, the thermal initiator 2,2'-Azobis(2,4-dimethylvaleronitrile) that adds A12ABT and DA12AB mole number sum 1% then, inject two liquid crystal cells 6 that substrate 5 is made after the fusion, two 5 of substrates have been placed the certain interval insulant 2 of diameter makes the certain interval of maintenance between the two substrates 5 to control the thickness of prepared crosslinked liquid crystal high polymer material, the internal surface of substrate 5 is directed and rubbed, in order that mesomorphic unit is aligned along frictional direction, frictional direction 3 is asked for an interview shown in the figure, then with 100 ℃ of warm table 4 control reaction temperature, reaction 12h opens liquid crystal cell 6 and obtains crosslinked liquid crystal high polymer material.
Embodiment 14
This embodiment has illustrated that above prepared crosslinked liquid crystal high polymer material and polythene material carries out composite methods.At first the polythene material of 50 μ m thickness is coated equably the adhesive layer of about 10 μ m thickness, get then after crosslinked fluid polycrystalline macromolecule materials processing that embodiment 13 prepares becomes the thickness of 30 μ m, it entirely is placed on above the polyethylene that scribbles adhesive layer, applies about 0.05Kg/cm
2Pressure, treat static pressure 10min after, obtain matrix material.
Embodiment 15
Present embodiment has illustrated the control of the photo-deformable of crosslinked liquid crystal high polymer material.Ask for an interview shown in Figure 2ly, the crosslinked liquid crystal high polymer material 8 that obtains in embodiment 10 or 11 is placed on the substrate 7, starting wavelength above perpendicular to described liquid crystal high polymer material 8 then is 436nm, and light intensity is 20mW/cm
2Visible light 10 can be observed liquid crystal high polymer material 8 this moment and bend towards the liquid crystal high polymer material 11 that light source has formed generation deformation along frictional direction 9.After stopping the irradiation of visible light 10, start wavelength greater than 545nm, light intensity is 18mW/cm
2Visible light 12, the liquid crystal high polymer material 11 that can be observed described generation deformation has again become the liquid crystal high polymer material 13 of replying original state, this process multi-pass operations that can circulate, and liquid crystal high polymer material 8 itself obvious fatigue phenomenon do not occur.
Claims (12)
1, a kind of liquid crystal high polymer material of realizing photo-deformable by radiation of visible light, it is characterized in that, at first organic synthesis goes out monomer X and linking agent Y, and then mix with a certain amount of light trigger or thermal initiator, put into reactor, select suitable light intensity or temperature of reaction, generate liquid crystal high polymer material by photopolymerization reaction or heat polymerization;
Wherein, the general formula of described monomer X is:
D
1—A
1—R
The general formula of described linking agent Y is:
D
2—A
2—D
3
Wherein R is H, or C
1-C
20Replacement or unsubstituted alkyl or alkoxyl group, or have the polar end group; A
1, A
2A kind of group or two kinds of group or three kinds of structural bonds with correspondence that form with the structural bond link of correspondence of being selected from the following structure link the group that forms,
A
1, A
2Structure identical or different, in above-mentioned group, B, B
1, B
2Be replacement or unsubstituted aliphatics ring, aromatic ring, condensed ring, heterocycle, or their corresponding derivatives, B, B
1, B
2Structure identical or different, but A
1, A
2The conjugated structure that one of them contains nitrogen benzide at least is not limited to following structure,
Wherein, D
1～D
3Be to contain the group that can carry out polymeric carbon-carbon double bond structure, they independently are selected from a kind of in the following structure, D
1～D
3Structure is identical or different,
R wherein
1Be H or CH
3R
2Be H, perhaps in the monomer general formula, do not occur, or C
1-C
20Replacement or unsubstituted alkyl or alkoxyl group, alkylthio, alkylamino, dialkylamino, alkyloyl, alkanoyloxy, alkyl amide, alkane alkylsulfonyl, or their corresponding derivatives.
2, liquid crystal high polymer material as claimed in claim 1 is characterized in that, R is C preferably
1～C
12Replacement or unsubstituted alkyl or alkoxyl group, or have the polar end group, described have the polar end group preferably from F, Cl, Br, I or ester group.
3, liquid crystal high polymer material as claimed in claim 1 is characterized in that, R
2C preferably
1～C
12Replacement or unsubstituted alkyl, described alkyl can be saturated or unsaturated, or is selected from alkoxyl group.
4, liquid crystal high polymer material as claimed in claim 1 is characterized in that, the molar ratio of monomer X and linking agent Y is 99: 1-1: 99, and preferred ratio is 95: 5-50: 50.
5, liquid crystal high polymer material as claimed in claim 1 is characterized in that, described light trigger is selected from organic carbonyl complex and organo-metallic compounds, and preferably from Irgacure 784, Irgacure 819, their structural formula is as follows:
6, liquid crystal high polymer material as claimed in claim 1 is characterized in that, described thermal initiator is selected from azo compound, preferably from Diisopropyl azodicarboxylate, 2,2'-Azobis(2,4-dimethylvaleronitrile).
7, liquid crystal high polymer material as claimed in claim 1 is characterized in that, the selected light trigger or the consumption of thermal initiator are 0.1%-10% of monomer and linking agent mole number sum, preferably 1%-5%.
8, liquid crystal high polymer material as claimed in claim 1 is characterized in that, selected wavelength region is 300nm-800nm when carrying out photopolymerization, preferably 400nm-600nm; The light intensity scope is 0.1mW/cm
2-20mW/cm
2, 1mW/cm preferably
2-10mW/cm
2Carrying out photopolymerisable polymerization time scope is 0.5h-20h, preferably 2h-10h; The polymerization temperature scope is 50 ℃-200 ℃, preferably 80 ℃-150 ℃.
9, liquid crystal high polymer material as claimed in claim 1 is characterized in that, the polymerization time scope of carrying out thermopolymerization is 1h-100h, preferably 3h-50h; The polymerization temperature scope is 20 ℃-200 ℃, preferably 40 ℃-150 ℃.
10, a kind of method that makes liquid crystal high polymer material produce deformation and recovery, it is characterized in that, at room temperature promptly can make material generation deformation by radiation of visible light, the radiation of visible light of process or heating can be returned to initial state again again, wherein the wavelength of visible light of control material deformation is 380nm-480nm, and light intensity is at 1mW/cm
2-300mW/cm
2, be preferably 5mW/cm
2-50mW/cm
2, the wavelength of visible light that material is restPosed is 500nm-800nm, intensity is 1mW/cm
2-300mW/cm
2,, be preferably 10mW/cm
2-100mW/cm
2
11, a kind of matrix material is characterized in that, described matrix material comprises three-decker, and the first layer is crosslinked liquid crystal high polymer material, and thickness is 5 μ m-100 μ m; Middle one deck is the compound agent layer that sticks with glue, and tackiness agent is selected from a kind of in cyanoacrylate, polyurethanes, acrylic acid or the like, the polyacrylic, and its thickness is 1 μ m-100 μ m; The 3rd layer is the flexible substrate material, is selected from a kind of in polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, the natural rubber, and its thickness is 5 μ m-5mm.
12, matrix material as claimed in claim 11 is characterized in that, the thickness of described crosslinked liquid crystal high polymer material is 40 μ m-60 μ m, and the thickness of described adhesive layer is 5 μ m-30 μ m, and the thickness of described flexible substrate material is 30 μ m-70 μ m.
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2009
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