CN109621835A - A kind of preparation method of photoresponse surfactant aggregates - Google Patents
A kind of preparation method of photoresponse surfactant aggregates Download PDFInfo
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- CN109621835A CN109621835A CN201811623660.XA CN201811623660A CN109621835A CN 109621835 A CN109621835 A CN 109621835A CN 201811623660 A CN201811623660 A CN 201811623660A CN 109621835 A CN109621835 A CN 109621835A
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- photoresponse
- preparation
- surfactant aggregates
- illumination
- surfactant
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
Abstract
The invention discloses a kind of preparation methods of photoresponse surfactant aggregates, comprising the following steps: α-carboxyl alkyl dimethyl amine oxides and photoacid generator are added to the water, after illumination, that is, generate the photoresponse surfactant aggregates.The present invention causes photoacid generator by illumination and chemically reacts, discharge proton, so that system pH changes, and then cause aggregation molecule structure change, so that molecule aggregate pattern changes, cause the significant changes of macro property, obtained aggregation can realize the transformation of globular micelle-vermiculate glues-vesica multiple pattern, and pH fluid-responsive is changed into and may be implemented to remotely operate, wireless driving, photoresponse fluid that is efficient and being easily achieved real-time monitoring and selection region accuracy controlling.
Description
Technical field
The present invention relates to colloidal interface chemical fields, relate in particular to a kind of system of photoresponse surfactant aggregates
Preparation Method.
Background technique
Surfactant is the special small molecule amphipathic compound with surface-active, can be self-assembly of spherical glue
The ordered structure of the variforms such as beam, corynebacterium micella, vermiculate glues, vesica and layered liquid crystal.If in surfactant point
Micella assembling and the component with environmental response can be participated in by being introduced into environmental stimulus response group in son or introducing in system, extraneous
When minor change occurs for environmental condition (temperature, pH, electrolyte, concentration, light, electric field etc.), microstructure accordingly occurs
Transformation, macro morphology, phase, translucency, mechanical performance, surface energy and infiltration rate etc. occur physically or chemically equal
It is corresponding to mutate.Due to environmental stimulus response performance can meet drug transport and control release, biosensor, urge
Change, nano-reactor, organizational project, fluid drag-reduction, oil field gas production, sewage treatment and other biological medicines etc. are answered
With receiving significant attention in recent years.
In many stimuli responsive fluids, light stimulus fluid-responsive has and can remotely operate, wireless to drive, and efficiently and is easy to
Realize the significant advantages such as real-time monitoring and selection region accuracy controlling, thus before high-technology field illustrates tempting application
Scape, it has also become the emerging field of intellectual material research.
Introducing photoresponse group in molecule or the compound addO-on therapy of photoresponse isomerization is added is building photoresponse stream
The method that body generallys use.However, commercialization photoresponse reagent additive types are limited, the photoresponse reagent synthesis of complex and expensive
So that the research of photoresponse SMART FLUID is restricted.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of preparation methods of photoresponse surfactant aggregates.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of photoresponse surfactant is assembled
The preparation method of body, comprising the following steps: α-carboxyl alkyl dimethyl amine oxides and photoacid generator are added to the water,
After illumination, that is, generate the photoresponse surfactant aggregates.
Illumination causes photoacid generator and chemically reacts, and discharges proton, so that system pH changes, and then causes
Aggregation molecule structure change causes the significant changes of macro property so that molecule aggregate pattern changes.
Further, α-carboxyl alkyl dimethyl amine oxides additional amount is 25~300mmol/L.In this concentration
In range, available three classes aggregation under different condition, thus aggregation macroscopic property can be realized by illumination condition
Regulation.
Further, the long alkane carbon chain lengths of α-carboxyl alkyl dimethyl amine oxides are C13~C17.In the carbon
Within the scope of chain length, self assembly aggregation causes the significant changes of macro property.
Further, photoacid generator is the reagent that Hydrogen Proton can be released under illumination condition, after being included in illumination
It can produce all photoacid generators of appropriate amount of acid proton in aqueous solution.
The present invention also provides the photoresponse surfactant aggregates according to made from above-mentioned preparation method.
The beneficial effects of the present invention are embodied in:
The present invention causes photoacid generator by illumination and chemically reacts, and discharges proton, so that system pH changes, into
And cause aggregation molecule structure change, so that molecule aggregate pattern changes, cause the significant changes of macro property,
Environmental protection, oilfield exploitation, textile printing and dyeing, industry cleaning link and preparing in terms of chemicals have broad application prospects.
The present invention breaches the limit that the building of photoresponse molecule aggregate has to pass through the photoresponse reagent synthesis of complex and expensive
System constructs photoresponse molecule aggregate using the photoacid generator of commercialization, expands the range of photoresponse architectural study significantly, and
And photoresponse aggregation can also be made to accept pH response, cheap and easy to get, conveniently regulating and controlling responds rapid feature, obtains than current light
The more superior performance of Response System.
Photoresponse surfactant aggregates of the present invention have cheap and easy to get, conveniently regulating and controlling, and response is rapid.The present invention utilizes
The feature of pH fluid-responsive, introduces photoacid generator, may be implemented to remotely operate so that pH fluid-responsive is changed into, wireless to drive
Dynamic, photoresponse fluid that is efficient and being easily achieved real-time monitoring and selection region accuracy controlling has latent in high-technology field
Application prospect.
Specific embodiment
The present invention will be further described below with reference to examples:
Various raw materials, are such as not specifically noted used in following embodiment, are commercial product well known in the art.
Embodiment 1
The preparation of photoresponse surfactant aggregates
By α-carboxytridecyl dimethyl amine (additional amount 120mmol/L) and iodo- one water of 2- carboxylic acid inner salt of diphenyl
It closes object (additional amount 10mmol/L) to be added in distilled water under 25 DEG C of water bath conditions, obtains transparent uniform solution system,
Then the ultraviolet lighting 20min under the ultraviolet point light source of 200W, system become having certain viscosity, yellow solution；40min
Afterwards, system is in gel, and viscosity can bear self gravity after inversion.
Embodiment 2
The preparation of photoresponse surfactant aggregates
Solid α-carboxypentadecyl dimethyl amine is added in distilled water under 45 DEG C of water bath conditions, is configured to
The solution of 25mmol/L, adds solid diphenyl iodine nitrate, and the concentration of diphenyl iodine nitrate reaches 10mmol/L, passes through
Magnetic agitation makes it dissolve, and acquired solution has shear thinning behavior, and zero-shear viscosity reaches 0.3 Pas.It is ultraviolet in 100W
Illumination 1.5h under lamp, solution become milky, and solution viscosity no longer has shear thinning behavior, and the feature with Newtonian fluid is glued
Degree is reduced to 6 mPas.Solution is characterized using cyro-TEM, is detected wherein with the presence of vesica.
Embodiment 3
The preparation of photoresponse surfactant aggregates
Under 80 DEG C of water bath conditions, hexichol is added into α-carboxyheptadecyl dimethyl amine aqueous solution of 300mmol/L
Base iodine nitrate (additional amount 25mmol/L), the solution poor fluidity of formation can support itself weight when reagent bottle stands upside down
Amount, with 100W UV illumination, liquid can be flowed freely when the time reaches 1h, and measuring zero-shear viscosity is 8mPas.
It should be understood that example as described herein and embodiment are not intended to restrict the invention, this field only for explanation
Technical staff can make various modifications or variation according to it, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of preparation method of photoresponse surfactant aggregates, it is characterised in that: the following steps are included: α-carboxyl is long
Alkyl group dimethyl amine and photoacid generator are added to the water, and after illumination, that is, generate the photoresponse surface-active
Agent aggregation.
2. the preparation method of photoresponse surfactant aggregates according to claim 1, it is characterised in that: α-carboxyl is long
The additional amount of alkyl group dimethyl amine is 25~300mmol/L.
3. the preparation method of photoresponse surfactant aggregates according to claim 1 or 2, it is characterised in that: α-carboxylic
The long alkane carbon chain lengths of base alkyl dimethyl amine oxides are C13~C17.
4. the preparation method of photoresponse surfactant aggregates according to claim 1 or 2, it is characterised in that: photic
Raw acid agent is the reagent that Hydrogen Proton can be released under illumination condition.
5. the preparation method of photoresponse surfactant aggregates according to claim 1 or 2, it is characterised in that: preparation
Process carries out under the conditions of 25~80 DEG C of temperature.
6. light made from the preparation method of photoresponse surfactant aggregates according to any one of claim 1 to 5
Response surface activating agent aggregation.
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| CN201811623660.XA CN109621835A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of photoresponse surfactant aggregates |
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| CN201811623660.XA CN109621835A (en) | 2018-12-28 | 2018-12-28 | A kind of preparation method of photoresponse surfactant aggregates |
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Cited By (2)
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| CN110160390A (en) * | 2019-05-08 | 2019-08-23 | 中国石油大学(北京) | Pipeline drag reduction flows contactless efficient augmentation of heat transfer system and method |
| CN110283671A (en) * | 2019-06-04 | 2019-09-27 | 广州蓝月亮实业有限公司 | A kind of aqueous flavor enhancing composition |
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| CN105482555A (en) * | 2016-02-10 | 2016-04-13 | 吴雯雯 | Jet printing method for foaming ink |
| CN108084797A (en) * | 2016-01-29 | 2018-05-29 | 杭州电子科技大学 | A kind of foam ink of inkjet printing |
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| CN108084797A (en) * | 2016-01-29 | 2018-05-29 | 杭州电子科技大学 | A kind of foam ink of inkjet printing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110160390A (en) * | 2019-05-08 | 2019-08-23 | 中国石油大学(北京) | Pipeline drag reduction flows contactless efficient augmentation of heat transfer system and method |
| CN110283671A (en) * | 2019-06-04 | 2019-09-27 | 广州蓝月亮实业有限公司 | A kind of aqueous flavor enhancing composition |
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Application publication date: 20190416 |