CN106749978A - The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel - Google Patents
The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel Download PDFInfo
- Publication number
- CN106749978A CN106749978A CN201611128405.9A CN201611128405A CN106749978A CN 106749978 A CN106749978 A CN 106749978A CN 201611128405 A CN201611128405 A CN 201611128405A CN 106749978 A CN106749978 A CN 106749978A
- Authority
- CN
- China
- Prior art keywords
- component
- weight
- aqueous solution
- gel
- deionized water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel.The method is to make comonomer with MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, vinyl pyrrolidone, sorbic acid, PEGDMA-400 makees crosslinking agent, and potassium peroxydisulfate sodium hydrogensulfite makees initiator and carry out copolymerization in deionized water to obtain organic amphiprotic copolymerized macromolecule first network gel；The first network gel is swelling in the aqueous solution that jasmonic, bios Ⅰ, hydroxyethyl methacrylate, the bromo DOPCP of dimethacrylate two and deionized water are prepared, monomer, crosslinking agent in the aqueous solution are copolymerized conjunction, esterification through the effect of potassium peroxydisulfate, pyridoxine hydrochloride, finally obtain organic amphiprotic copolymerized macromolecule interpenetrating networks gel.
Description
Technical field
The present invention relates to a kind of preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel.
Background technology
Gel is a kind of special dispersion, and high-polymer molecular or colloidal solid interconnect, and to form three dimensions netted
Structure, can absorb substantial amounts of water-swellable and water insoluble, and definite shape can be kept in water, have solid and liquid duality concurrently
Matter.Macroscopically see, high-molecular gel has certain shape, applying certain external force can deform, can recover original after removal external force
Shape, the viscoplasticity with solid；Seen on microcosmic, high-molecular gel has three-dimensional net structure water insoluble, three-dimensional network point
Son can stretch in water, with liquid property.With soft, water content it is high and have the viscoelastic gel of rubber environmental protection, weaving,
All many-sides such as building materials, petrochemical industry, food, agricultural gardening, daily cosmetics have and are widely applied.
Organism including humans is all high-molecular gel composition, mostly with electrical, such as protein, amino acid.
Copolymerization Amphiphatic high polymer interpenetrating networks gel can obtain Protean specific performance, particularly height and contains with the change of copolymerization component
The similitude of the electrical and organization of human body in water and molecule, good biocompatibility, environmental stimulus response is cured in biology
The fields such as medicine controlled releasing, bio-sensing, the organizational project in medicine field have obtained some applications.
The problem that the preparation method of current organic amphiprotic copolymerized macromolecule interpenetrating networks gel is primarily present is monomer propylene
The toxic articles of acid amides category " carcinogenic, aberration inducing, mutagenesis ", crosslinking agent N, N methylene diacrylamine toxicity is larger, and gel is deposited
In unfavorable toxic effect；The interpenetrating networks gel stability that single crosslinking agent is formed is relatively low.Exploitation uses nontoxic or low toxicity
Monomer, crosslinking agent carry out combined polymerization to reduce gel toxicity, forming multiple interpenetrating networks using compounding crosslinking agent improves gel
The preparation method of the organic amphiprotic copolymerized macromolecule interpenetrating networks gel of stability has larger practical value.
The content of the invention
For the problem that the preparation method of current organic amphiprotic copolymerized macromolecule interpenetrating networks gel is present, mesh of the invention
Be to provide it is a kind of use nontoxic or low-toxicity monomer, the crosslinking agent to carry out combined polymerization to reduce gel toxicity, use and compound crosslinking agent
The preparation method that multiple interpenetrating networks improve the organic amphiprotic copolymerized macromolecule interpenetrating networks gel of gel stability is formed, it is special
It is that in closed reactor component A and deionized water stirring can added to prepare the aqueous solution to levy, and the weight concentration for controlling component A is
28%~62%；After the completion of prepared by solution, relative degree of vacuum is evacuated to for -0.02MPa~-0.08MPa, be passed through nitrogen and recover anti-
After answering device to normal pressure, add the aqueous solution prepared by B component and deionized water under agitation, the weight concentration of B component for 20%~
40%；After the aqueous solution charging of B component terminates, 35 DEG C~50 DEG C are warming up to, add matched somebody with somebody by component C and deionized water under agitation
The aqueous solution of system, the weight concentration of component C is 5%~15%；Control ph is 4~10, in 35 DEG C~50 DEG C constant temperature, continues to stir
Reaction 2h~3.5h, obtains organic amphiprotic copolymerized macromolecule first network gel；Then cooled down, in the case where nitrogen is passed through, will
The aqueous solution that first network gel input is prepared equipped with D components and deionized water can be swelling in closed reactor, D components
Weight concentration is 1.8%~11%, by weight, first network gel:Weight ratio=1 of D component deionized water solutions:（95~
155）, swelling 2h~6h；Add the aqueous solution prepared by component E and deionized water and continue swelling, the weight concentration of component E is
10%~20%, swelling 16 h~24 h；After the completion of swelling, 75 DEG C~95 DEG C are warming up to, control ph is 3~7,75 DEG C~95
DEG C constant temperature, reacts 4h~6h, obtains organic amphiprotic copolymerized macromolecule interpenetrating networks gel.The component A is by methacryloxypropyl
Ethyl-trimethyl salmiac, vinyl pyrrolidone, sorbic acid composition, by the gauge of material, methylacryoyloxyethyl front three
Ammonium chloride:Vinyl pyrrolidone:The ratio between amount of material of sorbic acid=（0.5~1.2）:（0.3~1.6）:（0.4~
1.1）；B component is PEGDMA-400, and number-average molecular weight is 2000~20000, and its charged material weight is component A
The 2.5%~11% of gross weight；Component C is made up of potassium peroxydisulfate-sodium hydrogensulfite, and its gross weight that feeds intake is component A gross weight
0.3%~1.8%, by weight, potassium peroxydisulfate:Weight ratio=1 of sodium hydrogensulfite:（0.2~1.1）；D components by jasmonic,
Bios Ⅰ, hydroxyethyl methacrylate and the bromo DOPCP of dimethacrylate two composition, by the gauge of material, jasmine
Acid:Bios Ⅰ:The ratio between amount of material of hydroxyethyl methacrylate=（0.5~2.0）:（0.08~0.32）:（0.4~
1.1）, by weight, the bromo DOPCP charged material weight of dimethacrylate two is jasmonic, bios Ⅰ, metering system
Three kinds the 1.8%~5.5% of total monomer weight of sour hydroxyl ethyl ester；Component E is made up of potassium peroxydisulfate, pyridoxine hydrochloride, potassium peroxydisulfate
Charged material weight is the 0.1%~1.2% of D component weights, pyridoxine hydrochloride charged material weight be D component weights 0.8%~
5.6%。
What technical method of the invention was realized in：Methylacryoyloxyethyl front three can be being prepared in closed reactor
Ammonium chloride CH2=C(CH3)COO(CH2)2N(CH3)3Cl, vinyl pyrrolidone H2C=CH-(C4H6NO), sorbic acid CH3CH=
The aqueous solution of CHCH=CHCOOH comonomers；After vacuumizing deoxidation, nitrogen protection is passed through, adds crosslinking agent dimethacrylate
The aqueous solution of macrogol ester；After intensification, redox initiator potassium peroxydisulfate-sodium hydrogensulfite K is added2S2O8-NaHSO3
The aqueous solution, through trigger, combined polymerization chain propagation reaction, crosslinking agent PEGDMA-400 participate in copolyreaction and line
Type copolymerization macromolecular crosslinks reaction and forms cross-linked network structure, through chain termination reaction, obtains organic amphiprotic copolymerized macromolecule
First network gel.Nitrogen protection is passed through, organic amphiprotic copolymerized macromolecule first network gel is in jasmonic HOOCCH2-
(C5H6O)CH2CH=CHC2H5, bios Ⅰ (CH)6(OH)6, hydroxyethyl methacrylate CH2=C(CH3)COOCH2CH2OH, diformazan
The bromo DOPCP CH of base acrylic acid two2=C(CH3)COOCH2C(CH2Br)2CH2OOC(CH3)C=CH2The aqueous solution effect under
It is swelling, add initiator potassium persulfate K2S2O8, catalyst pyridoxine hydrochloride (CH3)(HOCH2)2(HO)C5HNHCl water
Continue swelling in the presence of solution, in swelling process, monomer, crosslinking agent in the aqueous solution, initiator, catalyst enter into organic
Both sexes copolymerized macromolecule first network gel inside is simultaneously uniformly distributed；After intensification, line is formed through initiation, combined polymerization chain propagation reaction
Type copolymerization macromolecular, the bromo DOPCP of crosslinking agent dimethacrylate two participates in copolyreaction and line style copolymerization macromolecular hair
Raw cross-linking reaction, forms cross-linked network structure, pyridoxine hydrochloride molecule of the catalysis with carboxylic group and hydroxyl group point
There is esterification in son, because bios Ⅰ reacts to form cross-linked network knot with six OH groups and the molecule with carboxylic group
Structure；Further reaction, finally due to the chain termination and the completion of esterification of radical copolymerization macromolecular, forms organic amphiprotic
Copolymerized macromolecule interpenetrating networks gel.
Relative to art methods, outstanding advantages of the present invention are monomer methacryloxypropyl second used in technology of preparing
Base trimethyl ammonium chloride, jasmonic, hydroxyethyl methacrylate and the bromo DOPCP of crosslinking agent dimethacrylate two are low
Poison, monomer sorbic acid, vinyl pyrrolidone and crosslinking agent PEGDMA-400, bios Ⅰ are nontoxic, reduce
Gel toxicity；The interpenetrating networks gel of preparation has radical crosslinking and esterification and crosslinking network structure, improves interpenetrating networks
The stability of gel；Preparation method is simple, reaction condition is gentle, be suitable for production, with good environmental benefit and economic benefit.
Specific embodiment
Embodiment 1：By 125g MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chlorides, 44g vinyl pyrrolidones, 56g sorbs
The deionized water of acid and 525ml is added to volume can be uniformly mixed in closed reactor for 1L, the weight of the aqueous solution
Concentration is evacuated to relative degree of vacuum -0.03MPa for 30%, then passes to nitrogen and recovers reactor to normal pressure, adds 7g numbers to divide equally
Son amount is the aqueous solution of 4000 PEGDMA-400 and 25ml deionized waters preparation, and the weight of the aqueous solution is dense
Spend is 21%；36 DEG C are then heated to, adds what 0.87g potassium peroxydisulfates, 0.26g sodium hydrogensulfites and 19ml deionized waters were prepared
The aqueous solution, the weight concentration of the aqueous solution is 5.5%；In 36 DEG C of constant temperature, control ph is 4.6, continues stirring reaction 2.2h, is obtained
To organic amphiprotic copolymerized macromolecule first network gel；Then cooled down, in the case where nitrogen is passed through, organic amphiprotic copolymerized macromolecule
First network gel 107g input volumes can be swelling in closed reactor for 20L's, in the reactor equipped with 126g jasmonics,
19g bios Ⅰs, 65g hydroxyethyl methacrylates, the bromo DOPCP of 4g dimethacrylates two and 10488ml deionizations
The aqueous solution that water is prepared, the weight concentration of the aqueous solution is 2%, the weight of first network gel（107g）：The weight of the aqueous solution
（10702g）=1:100, swelling 2.5h；0.43g potassium peroxydisulfates, 2.14g pyridoxine hydrochlorides and 22ml deionized waters is added to match somebody with somebody
The aqueous solution of system, the weight concentration of the aqueous solution is 10.5%, swelling 18h；77 DEG C are warming up to after the completion of swelling, control ph is
3.4, in 77 DEG C of isothermal reaction 4.2h, obtain organic amphiprotic copolymerized macromolecule interpenetrating networks gel.The gel is water insoluble, can be
It is swelling in water, gel swelling rate（ESR）=5236%（Deionized water）, gel swelling rate（ESR）=5193%（Weight concentration 1%
The NaCl aqueous solution）.
Embodiment 2：By 228g MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chlorides, 167g vinyl pyrrolidones, 112g mountains
The deionized water of pears acid and 338ml is added to volume for 1L can be uniformly mixed in closed reactor, the weight of the aqueous solution
Concentration is 60%, is evacuated to relative degree of vacuum -0.07MPa, then passes to nitrogen and recovers reactor to normal pressure, adds 51g numbers equal
Molecular weight is the aqueous solution that 17000 PEGDMA-400 and 79ml deionized waters are prepared, the weight of the aqueous solution
Amount concentration is 39%；48 DEG C are then heated to, adds 3.80g potassium peroxydisulfates, 3.80g sodium hydrogensulfites and 45ml deionized waters to match somebody with somebody
The aqueous solution of system, the weight concentration of the aqueous solution is 14.5%；In 48 DEG C of constant temperature, control ph is 9.5, continues stirring reaction
3.2h, obtains organic amphiprotic copolymerized macromolecule first network gel；Then cooled down, in the case where nitrogen is passed through, organic amphiprotic is common
Poly- macromolecule first network gel 40g input volume can be swelling in closed reactor for 10L's, and 378g jasmines are housed in the reactor
Jasmine acid, 56g bios Ⅰs, 130g hydroxyethyl methacrylates, the bromo DOPCP of 28g dimethacrylates two and 5334ml
The aqueous solution that deionized water is prepared, the weight concentration of the aqueous solution is 10%, the weight of first network gel（40g）：The aqueous solution
Weight（5927g）=1:150, swelling 5.3h, add 1.19g potassium peroxydisulfates, 5.93g pyridoxine hydrochlorides and 29ml go from
The aqueous solution that sub- water is prepared, the weight concentration of the aqueous solution is 19.5%, swelling 23.5h；92 DEG C, control are warming up to after the completion of swelling
PH value processed is 6.5, in 92 DEG C of isothermal reaction 5.6h, obtains organic amphiprotic copolymerized macromolecule interpenetrating networks gel.The gel is insoluble
Yu Shui, can be swelling in water, gel swelling rate（ESR）=4175%（Deionized water）, gel swelling rate（ESR）=4062%（Weight
The NaCl aqueous solution of concentration 1%）.
Claims (1)
1. a kind of preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel, it is characterized in that can in closed reactor plus
Enter component A and deionized water stirring prepares the aqueous solution, it is 28%~62% to control the weight concentration of component A, after the completion of prepared by solution,
Relative degree of vacuum is evacuated to for -0.02MPa~-0.08MPa, after being passed through nitrogen recovery reactor to normal pressure, is added under agitation
Enter the aqueous solution prepared by B component and deionized water, the weight concentration of B component is 20%~40%, the aqueous solution charging knot of B component
Shu Hou, is warming up to 35 DEG C~50 DEG C, and the aqueous solution prepared by component C and deionized water is added under agitation, and the weight of component C is dense
It is 5%~15% to spend, and control ph is 4~10, in 35 DEG C~50 DEG C constant temperature, continues stirring reaction 2h~3.5h, obtains organic two
Property copolymerized macromolecule first network gel, then cooled down, in the case where nitrogen is passed through, by the first network gel input be equipped with D
The aqueous solution that component and deionized water are prepared can be swelling in closed reactor, the weight concentration of D components is 1.8%~11%, is pressed
Weight meter, first network gel:Weight ratio=1 of D component deionized water solutions:（90~150）, swelling time is 2h~6h, then
The aqueous solution prepared by component E and deionized water is added to continue swelling, the weight concentration of component E is 10%~20%, swelling time
Be 16 h~24 h, it is swelling after the completion of, be warming up to 75 DEG C~95 DEG C, control ph is 3~7, in 75 DEG C~95 DEG C constant temperature, reaction
4h~6h, obtains organic amphiprotic copolymerized macromolecule interpenetrating networks gel；The component A is by methylacryoyloxyethyl trimethyl chlorine
Change ammonium, vinyl pyrrolidone, sorbic acid composition, by the gauge of material, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride:Ethene
Base pyrrolidones:The ratio between amount of material of sorbic acid=（0.5~1.2）:（0.3~1.6）:（0.4~1.1）, B component is diformazan
Base polyalkylene glycol acrylate ester, number-average molecular weight be 2000~20000, its gross weight that feeds intake be component A gross weight 2.5%~
11%, component C is made up of potassium peroxydisulfate-sodium hydrogensulfite, and its gross weight that feeds intake is the 0.3%~1.8% of component A gross weight, by weight
Gauge, potassium peroxydisulfate:Weight ratio=1 of sodium hydrogensulfite:（0.2~1.1）, D components are by jasmonic, bios Ⅰ, methyl-prop
Olefin(e) acid hydroxyl ethyl ester and the bromo DOPCP of dimethacrylate two are constituted, by the gauge of material, jasmonic:Bios Ⅰ:First
The ratio between amount of material of base hydroxy-ethyl acrylate=（0.5~2.0）:（0.08~0.32）:（0.4~1.1）, by weight, diformazan
The bromo DOPCP charged material weight of base acrylic acid two is total jasmonic, bios Ⅰ, three kinds of monomers of hydroxyethyl methacrylate
The 1.8%~5.5% of weight, component E is made up of potassium peroxydisulfate, pyridoxine hydrochloride, and potassium peroxydisulfate charged material weight is D component gross weights
The 0.1%~1.2% of amount, pyridoxine hydrochloride charged material weight is the 0.8%~5.6% of D component weights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128405.9A CN106749978A (en) | 2016-12-09 | 2016-12-09 | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128405.9A CN106749978A (en) | 2016-12-09 | 2016-12-09 | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106749978A true CN106749978A (en) | 2017-05-31 |
Family
ID=58875096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611128405.9A Pending CN106749978A (en) | 2016-12-09 | 2016-12-09 | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106749978A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070116765A1 (en) * | 2003-12-09 | 2007-05-24 | Zhibing Hu | Aqueous dispersion of hydrogel nanoparticles with inverse thermoreversible gelation |
| CN105289316A (en) * | 2015-09-28 | 2016-02-03 | 浙江大学 | Preparation method of composite separating film filled by interpenetrating polymer network hydrogel |
-
2016
- 2016-12-09 CN CN201611128405.9A patent/CN106749978A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070116765A1 (en) * | 2003-12-09 | 2007-05-24 | Zhibing Hu | Aqueous dispersion of hydrogel nanoparticles with inverse thermoreversible gelation |
| CN105289316A (en) * | 2015-09-28 | 2016-02-03 | 浙江大学 | Preparation method of composite separating film filled by interpenetrating polymer network hydrogel |
Non-Patent Citations (5)
| Title |
|---|
| 李友森 主编: "《轻化工业助剂实用手册 造纸、食品、印染工业卷》", 31 July 2002, 化学工业出版社 * |
| 薛巍 等主编: "《生物医用水凝胶》", 31 December 2012, 暨南大学出版社 * |
| 金关泰 主编: "《高分子化学的理论和应用进展》", 31 March 1995, 中国石化出版社 * |
| 韩长日 等主编: "《精细有机化工产品生产技术手册（下卷）》", 30 June 2010, 中国石化出版社 * |
| 魏佳: ""具有半互穿网络结构的两性吸水树脂的合成及性能研究"", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106749978A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750013A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750009A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750021A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750012A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750004A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750015A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750408A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750008A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750413A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750017A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106749976A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106749977A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750411A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750025A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106699994A (en) | Preparation method of organic amphoteric copolymerized interpenetrating polymer network gel | |
| CN106750410A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750405A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106700100A (en) | Preparation method for organic amphoteric copolymer interpenetrating network gel | |
| CN106750005A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750003A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106749979A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750407A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750027A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel | |
| CN106750400A (en) | The preparation method of organic amphiprotic copolymerized macromolecule interpenetrating networks gel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |