CN108727541B - Preparation method of cellulose-based shape memory material - Google Patents
Preparation method of cellulose-based shape memory material Download PDFInfo
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- CN108727541B CN108727541B CN201710290447.0A CN201710290447A CN108727541B CN 108727541 B CN108727541 B CN 108727541B CN 201710290447 A CN201710290447 A CN 201710290447A CN 108727541 B CN108727541 B CN 108727541B
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- 229920002678 cellulose Polymers 0.000 title claims abstract description 50
- 239000001913 cellulose Substances 0.000 title claims abstract description 50
- 239000012781 shape memory material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 239000000178 monomer Substances 0.000 claims abstract description 19
- 239000003999 initiator Substances 0.000 claims abstract description 14
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000009849 vacuum degassing Methods 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 5
- 235000010980 cellulose Nutrition 0.000 claims description 45
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 20
- 239000001856 Ethyl cellulose Substances 0.000 claims description 19
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims description 19
- 235000019325 ethyl cellulose Nutrition 0.000 claims description 19
- 229920001249 ethyl cellulose Polymers 0.000 claims description 19
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 14
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 9
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 9
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 7
- LCXXNKZQVOXMEH-UHFFFAOYSA-N Tetrahydrofurfuryl methacrylate Chemical compound CC(=C)C(=O)OCC1CCCO1 LCXXNKZQVOXMEH-UHFFFAOYSA-N 0.000 claims description 7
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 7
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 claims description 7
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 7
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 4
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 229920000875 Dissolving pulp Polymers 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- 229920000168 Microcrystalline cellulose Polymers 0.000 claims description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 235000019813 microcrystalline cellulose Nutrition 0.000 claims description 2
- 239000008108 microcrystalline cellulose Substances 0.000 claims description 2
- 229940016286 microcrystalline cellulose Drugs 0.000 claims description 2
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims 1
- 125000000524 functional group Chemical group 0.000 claims 1
- DWXAVNJYFLGAEF-UHFFFAOYSA-N furan-2-ylmethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC1=CC=CO1 DWXAVNJYFLGAEF-UHFFFAOYSA-N 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000002028 Biomass Substances 0.000 description 6
- 239000002861 polymer material Substances 0.000 description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000431 shape-memory polymer Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- -1 coatings Polymers 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007334 memory performance Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009988 textile finishing Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
Abstract
The invention relates to a preparation method of a cellulose-based shape memory material, which comprises the following steps: the first step is as follows: reacting cellulose, methacrylic anhydride and a catalyst at 30-80 ℃ for 1-10 h to prepare a cellulose-based macromonomer; the second step is that: mixing a macromonomer, a monomer A, a monomer B and an initiator according to a certain mass ratio, fully dissolving, then carrying out vacuum degassing, and then reacting at 50-120 ℃ for 1-5 h to prepare the cellulose-based shape memory material. The shape memory material prepared by the method has the advantages of simple operation, rapidness, high efficiency, no chemical solvent, environmental protection and the like.
Description
Technical Field
The invention relates to a preparation method of a cellulose-based shape memory material.
Background
With the increasing consumption of fossil raw materials, the use of renewable resources to prepare high molecular polymers has received great attention. Cellulose is the biomass resource with the largest yield in the world, and has been widely applied to synthetic plastics, coatings, rubber substitutes, printing ink, insulating materials, and can also be used as an adhesive, a textile finishing agent and the like.
The shape memory polymer material is a polymer material which can restore the initial shape thereof through the stimulation of external conditions (such as heat, light, electricity, chemical induction) and the like after the initial shape of the polymer material is changed and fixed under certain conditions. At present, the shape memory polymer material as a novel intelligent material is widely applied to the fields of buildings, aerospace, medicine, health and the like. In order to expand the raw material sources for preparing the shape memory material and reduce the preparation cost thereof, the preparation of the shape memory material by using natural renewable resources has become a hot point of research in recent years. In recent years, many scientists have successfully prepared the biomass-based shape memory material, but the preparation process is complicated, the conditions are strict, and the biomass-based shape memory material is not widely applied. In order to further expand the application range of the biomass-based shape memory material and simplify the preparation process of the biomass-based shape memory material, a polymer material with excellent shape memory performance is prepared by a one-step method at a lower temperature by adopting a solvent-free system, and the focus of attention of people is focused.
Disclosure of Invention
The invention aims to provide a preparation method of a cellulose-based shape memory material, which has the characteristics of high speed and high efficiency, and the reaction is carried out in a solvent-free system, so that the reaction process is more environment-friendly, the additional value of cellulose is improved, and the application range of the cellulose is expanded.
The technical scheme is as follows: the technical scheme of the invention is as follows: a cellulose-based shape memory material having the structure:
in the chemical crosslinking network structure, a cellulose macromonomer is used as a crosslinking agent, and R1 and R2 are structural units of monomers;
the cellulose-based shape memory material is prepared by the following specific steps: the first step is as follows: dissolving cellulose, methacrylic anhydride and a catalyst in a good solvent system according to a certain molar ratio, and reacting at 30-80 ℃ for 1-10 h to prepare a cellulose macromonomer; the second step is that: mixing a cellulose macromonomer, a monomer A, a monomer B and an initiator according to a certain mass ratio, fully dissolving, then carrying out vacuum degassing, and then reacting at 50-120 ℃ for 1-5 hours to prepare the cellulose-based shape memory material.
The cellulose is any one of methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, cellulose acetate, microcrystalline cellulose, and the like. .
The catalyst in the first step is any one of triethylamine, sodium bicarbonate and 4-Dimethylaminopyridine (DMAP).
In the first step, the molar ratio of the reactants is (1)/(0.1-3)/(catalyst).
The good solvent in the first step is any one of tetrahydrofuran, N-dimethylformamide, dimethyl carbonate and dimethylacetamide.
In the second step, the monomer A, B is a combination of any two of Lauryl Methacrylate (LMA), tetrahydrofurfuryl methacrylate (THFMA), octadecyl methacrylate (SMA), Methyl Methacrylate (MMA), Butyl Acrylate (BA), butyl Methacrylate (MBA), furfuryl alcohol methacrylate, styrene, hydroxyethyl methacrylate and hydroxyethyl acrylate.
In the second step, the initiator is any one of dibenzoyl peroxide (BPO) and Azobisisobutyronitrile (AIBN).
In the second step, the mass ratio of the reactants [ cellulose-based macromonomer ]/[ monomer A ]/[ monomer B ]/[ initiator ]/[ 0.1-10 wt% ], 1-90 wt%, (1-90 wt% >), and (0.05-2 wt% >.
Has the advantages that:
1. the preparation method of the cellulose-based shape memory material has the characteristics of rapidness and high efficiency, and the reaction is carried out in a solvent-free system, so that the polymerization process is more environment-friendly, the added value of cellulose is improved, and the application range of the cellulose is expanded.
2. The cellulose-based shape memory material can be used as a novel biomass-based shape memory polymer, has excellent shape fixing rate and shape recovery rate, and can be effectively regulated and controlled by regulating the type and proportion of monomers.
Drawings
FIG. 1 is an infrared spectrum of an ethylcellulose macromer, a shape memory material, in example 1.
FIG. 2 is a stress-strain curve of a uniaxial tensile test of the cellulose-based shape memory material of example 1.
FIG. 3 is a process of recovering the curved shape memory of the cellulose-based shape memory material of example 1.
Detailed Description
The present invention will be further illustrated with reference to the following examples, which, however, do not limit the scope of the present invention, since the method of preparing the cellulose-based shape memory material has a great influence.
Example 1: preparation of cellulose-based shape memory material from ethyl cellulose
Step 1: adding 1g (4.57mmol) of ethyl cellulose and 0.462g (4.57mmol) of triethylamine into a flask, dissolving with tetrahydrofuran, dropwise adding 0.68g (4.57mmol) of methacrylic anhydride, and reacting at 50 ℃ for 3h to obtain an ethyl cellulose macromonomer;
step 2: adding 0.2g of cellulose macromonomer, 5.82g of butyl acrylate, 3.88g of methyl methacrylate and 0.1g of initiator AIBN into a round-bottom flask, mixing, fully dissolving, then vacuum degassing, and then reacting for 3h at 80 ℃ to prepare the ethylcellulose-based shape memory material.
Example 2: preparation of cellulose-based shape memory material from ethyl cellulose
Step 1: adding 1g (4.57mmol) of ethyl cellulose and 0.557g (4.57mmol) of 4-dimethylaminopyridine into a flask, dissolving the mixture with tetrahydrofuran, dropwise adding 0.34g (2.285mmol) of methacrylic anhydride, and reacting at 50 ℃ for 3 hours to obtain an ethyl cellulose macromonomer;
step 2: adding 0.3g of cellulose macromonomer, 6.685g of butyl acrylate, 2.865g of methyl methacrylate and 0.15g of initiator BPO into a round-bottom flask, mixing, fully dissolving, vacuum degassing, and reacting at 70 ℃ for 4h to prepare the ethyl cellulose-based shape memory material.
Example 3: preparation of cellulose-based shape memory material from ethyl cellulose
Step 1: adding 1g (4.57mmol) of ethyl cellulose and 1.114g (9.14mmol) of 4-dimethylaminopyridine into a flask, dissolving the mixture with N, N-dimethylformamide, dropwise adding 0.68g (4.57mmol) of methacrylic anhydride, and reacting at 60 ℃ for 5 hours to obtain an ethyl cellulose macromonomer;
step 2: adding 0.3g of cellulose macromonomer, 6.685g of lauryl methacrylate, 2.865g of tetrahydrofurfuryl methacrylate and 0.1g of initiator AIBN into a round-bottom flask, mixing, fully dissolving, vacuum degassing, and reacting at 100 ℃ for 3h to prepare the ethylcellulose-based shape memory material.
Example 4: preparation of cellulose-based shape memory material from ethyl cellulose
step 2: adding 0.3g of cellulose macromonomer, 4.8g of monomer butyl acrylate, 4.8g of styrene and 0.1g of initiator AIBNP into a round-bottom flask, mixing, fully dissolving, vacuum degassing, and reacting at 60 ℃ for 5 hours to prepare the ethylcellulose-based shape memory material.
Example 5: preparation of cellulose-based shape memory material from hydroxyethyl cellulose
Step 1: adding 1g (3.85mmol) of hydroxyethyl cellulose and 0.469g (3.85mmol) of 4-dimethylaminopyridine into a flask, dissolving the materials with N, N-dimethylformamide, dropwise adding 0.57g (3.85mmol) of methacrylic anhydride, and reacting at 60 ℃ for 5 hours to obtain a hydroxyethyl cellulose macromonomer;
step 2 was as in example 1.
Example 6: preparation of cellulose-based shape memory material from hydroxyethyl cellulose
Step 1: adding 1g (3.85mmol) of hydroxyethyl cellulose and 0.469g (3.85mmol) of 4-dimethylaminopyridine into a flask, dissolving the materials with N, N-dimethylformamide, dropwise adding 0.456g (3.08mmol) of methacrylic anhydride, and reacting at 50 ℃ for 5 hours to obtain a hydroxyethyl cellulose macromonomer;
step 2: adding 0.3g of cellulose macromonomer, 6.685g of lauryl methacrylate, 2.865g of tetrahydrofurfuryl methacrylate and 0.1g of initiator AIBN into a round-bottom flask, mixing, fully dissolving, vacuum degassing, and reacting at 100 ℃ for 3h to prepare the hydroxyethyl cellulose-based shape memory material.
Example 7: preparation of cellulose-based shape memory material using hydroxypropyl cellulose
Step 1: adding 1g (5.62mmol) of hydroxypropyl cellulose and 0.685g (5.62mmol) of 4-dimethylaminopyridine into a flask, dissolving the mixture with N, N-dimethylformamide, dropwise adding 0.665g (5.62mmol) of methacrylic anhydride, and reacting at 50 ℃ for 5 hours to obtain a hydroxypropyl cellulose macromonomer;
step 2: adding 0.3g of hydroxypropyl cellulose macromonomer, 5.76g of lauryl methacrylate, 3.84g of tetrahydrofurfuryl methacrylate and 0.1g of initiator AIBN into a round-bottom flask, mixing, fully dissolving, vacuum degassing, and reacting at 100 ℃ for 3.5h to prepare the hydroxypropyl cellulose-based shape memory material. (ii) a
Spectrogram analysis
FIG. 1 is an IR spectrum of an ethylcellulose macromer, a shape memory material, in example 1: 1730cm in the figure-1The ester bond absorption peak shows the successful synthesis of the ethyl cellulose macromonomer, and 1730cm in an infrared spectrogram of a product after polymerization reaction-1The absorption peak of ester bond belonging to the monomer repeating unit is obviously enhanced, and the successful preparation of the cellulose-based shape memory material can be concluded.
FIG. 2 is a stress-strain curve of a uniaxial tensile test of the cellulose-based shape memory material of example 1: it can be seen from the figure that the shape memory material has good elastomeric properties and can be used as a new generation of elastomeric material.
FIG. 3 is a process for recovering the bent shape memory of the cellulose-based shape memory material of example 1, and it can be seen from the graph that the sample is bent by heating to 110 ℃ and then cooled to 0 ℃ to fix the temporary form, and then reheated to 110 ℃ and the sample is completely recovered to the original form within 80s, indicating that the sample has very excellent shape memory properties.
Claims (1)
1. A preparation method of a cellulose-based shape memory material is characterized by comprising the following steps:
the first step is as follows: dissolving cellulose, methacrylic anhydride and a catalyst in a good solvent system according to a certain molar ratio, and reacting at 30-80 ℃ for 1-10 h to prepare a cellulose macromonomer; the cellulose is any one of methyl cellulose, carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, cellulose acetate and microcrystalline cellulose; the catalyst is any one of triethylamine, sodium bicarbonate and 4-Dimethylaminopyridine (DMAP); the molar ratio of [ cellulose ]/[ methacrylic anhydride ]/[ catalyst ] is1: 0.1 to 3; the good solvent is any one of tetrahydrofuran, N-dimethylformamide, dimethyl carbonate and dimethylacetamide;
the second step is that: mixing cellulose macromonomer, a monomer A, a monomer B and an initiator according to a certain mass ratio, pouring the mixed solution into a mold after full dissolution, carrying out vacuum degassing, then reacting at 50-120 ℃ for 1-5 h to prepare a cellulose-based shape memory material, and finally taking out a shape memory material sample strip from the mold to directly carry out related tests on mechanical properties and shape memory properties; the monomer A and the monomer B are the combination of any two monomers of Lauryl Methacrylate (LMA), tetrahydrofurfuryl methacrylate (THFMA), octadecyl methacrylate (SMA), Methyl Methacrylate (MMA), Butyl Acrylate (BA), butyl Methacrylate (MBA), furfuryl methacrylate, styrene, hydroxyethyl methacrylate and hydroxyethyl acrylate; the initiator is Azobisisobutyronitrile (AIBN); the mass ratio of [ cellulose-based macromonomer ]/[ monomer A ]/[ monomer B ]/[ initiator ]/[ 0.1 to 10 wt%, (1 to 90 wt%), (0.05 to 2 wt%).
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| CN114957553A (en) * | 2022-06-24 | 2022-08-30 | 中国林业科学研究院林产化学工业研究所 | Tung oil modified ethyl cellulose polymer and preparation method thereof |
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| CN103214585A (en) * | 2013-03-28 | 2013-07-24 | 中国林业科学研究院林产化学工业研究所 | Preparation method of ethyecellulose-based macromonomer |
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| CN103214585A (en) * | 2013-03-28 | 2013-07-24 | 中国林业科学研究院林产化学工业研究所 | Preparation method of ethyecellulose-based macromonomer |
Non-Patent Citations (2)
| Title |
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| Preparation of a soft and interconnected macroporous hydroxypropyl cellulose methacrylate scaffold for adipose tissue engineering;Siew Pei Hoo, et al.;《Journal of Materials Chemistry B》;The Royal Society of Chemistry;20130430(第1期);3107-3117 * |
| 马来酸乙基纤维素的制备与表征;莫亚莉等;《林产化学与工业》;20110831;第31卷(第4期);31-35 * |
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