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Asymmetric bisected hybrid particle and preparation method thereof

A technology of hybrid particles and dual partitions, which is applied in the field of asymmetric dual partition hybrid particles and its preparation, which can solve the problems of difficult adjustment of particle ratio, inability to prepare according to needs, difficult process control, etc.

Active Publication Date: 2017-12-08
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The existing technology has prepared two-component particles with certain environmental responsiveness, such as: particles containing two components of polystyrene and polyacrylic acid (F.Tu et al., JACS, 2014, 136, 9999-10006) have Emulsion transition ability and pH responsiveness, and this particle is prepared by polystyrene swelling polymerization technology, based on the existing polystyrene microspheres, the preparation method is complicated, the process is not easy to control, and it is not suitable for mass production , and it is difficult to adjust the ratio of the two components in the granules. In addition, this method is limited to the preparation of specific component granules, which is not universal, and can not prepare granules with different components and properties according to needs, and the granules are only for pH responsive, limited application in non-solution environments

Method used

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  • Asymmetric bisected hybrid particle and preparation method thereof
  • Asymmetric bisected hybrid particle and preparation method thereof
  • Asymmetric bisected hybrid particle and preparation method thereof

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Embodiment approach

[0070] According to a preferred embodiment of the present invention, the hybrid monomer is a monomer represented by formula (d), or, the hybrid monomer is a monomer represented by formula (d) with an amide group, a carbonyl group, Mixtures of alkoxy and / or alkyl monomers:

[0071]

[0072] In a further preferred embodiment, in formula (d):

[0073] (1) M is selected from Fe, Si, Ti, Mg, Zr, B or Al, preferably selected from Fe, Si, Ti or Al, more preferably selected from Si or Ti, such as Si;

[0074] (2) R 1 from C 2 ~C 8 Alkenyl, styryl, cyclopentadienyl or groups represented by formula (d-1), preferably selected from C 2 ~C 4 Alkenyl, styryl, cyclopentadienyl or groups represented by formula (d-1), more preferably selected from acryloyloxy, methacryloyloxy, cyclopentadienyl or vinyl;

[0075]

[0076] In formula (d-1), R x for C 1 -C 18 The alkylene group, preferably C 1 -C 6 The alkylene group, more preferably C 1 -C 3 Alkylene groups such as propylene; ...

Embodiment 1

[0166]Dissolve 10g of N-isopropylacrylamide, 0.5g of N,N-methylenebisacrylamide, and 2mg of potassium persulfate in 20ml of water, add 1g of trimethoxyvinylsilane into 50ml of toluene, mix the above two solutions, Then add 0.5g of sodium lauryl sulfate, stir and react at 90°C for 1 hour, cool to room temperature, centrifuge, collect the solid precipitate and wash with 50ml of water and ethanol three times respectively to obtain white particles which are the heterogeneous asymmetric double partitions. particles.

Embodiment 2

[0168] Dissolve 10mg of acrylic acid, 30mg of N-isopropylacrylamide, 1mg of potassium persulfate and 1.4mg of sodium bisulfite in 40ml of water, add 400mg of methyl methacrylate, 20mg of triethoxyvinylsilane into 400ml of pentane , mix the above two solutions, then add 0.45g of dodecyltrimethylammonium chloride, stir and react at 20°C for 2 hours, cool to room temperature, centrifuge, collect the solid precipitate and wash with 50ml of water and ethanol three times respectively to obtain white The particles are the asymmetric responsive hybrid particles.

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Abstract

The invention discloses an asymmetric bisected hybrid particle and a preparation method thereof. The particle comprises a responsive polymer component and a hybrid component. The preparation method comprises the following steps: adding responsive monomers and an initiator into an aqueous phase and carrying out mixing so as to form a water-phase mixture; adding hybrid monomers into an oil phase and carrying out mixing so as to obtain an oil-phase mixture; adding the water-phase mixture into the oil-phase mixture, adding an emulsifier for emulsification and then carrying out polymerization and optionally cooling; optionally, adding a hetero atom precursor for a sol-gel reaction; and finally carrying out centrifuging, collecting a solid precipitate and carrying out washing so as to obtain the hybrid particle. The asymmetric bisected hybrid particle provided by the invention has environmental responsiveness, and the hybrid component can be bonded with various materials, so the asymmetric bisected hybrid particle has good application prospects in various fields such as catalysis, materials and medicine; and the preparation method is simple, easy to control, universal and suitable for mass production.

Description

technical field [0001] The invention relates to a hybrid particle, in particular to an asymmetric dual-partition hybrid particle and a preparation method thereof. Background technique [0002] In the field of material chemistry, a material particle can contain two partitioned components with different chemical compositions, so that the particle has the properties and functions of the two components at the same time. For example, if one component of the particle is hydrophilic and the other is lipophilic, then the particle has both hydrophilic and lipophilic properties, and can be used as a polymer solubilizer, oil-water emulsifier, surfactant, foam stabilizer, wetting agent, etc. Wetting agents, etc. However, so far, it is still challenging to prepare particles containing two partitioned components, and its preparation methods are limited, especially in large quantities. [0003] On the other hand, chemical substances with environmental responsiveness have been widely conc...

Claims

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Application Information

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IPC IPC(8): C08F220/54C08F222/38C08F130/08C08F220/06C08F220/14C08F230/08C08F222/14C08F226/06C08L33/24C08L43/04C08L33/02C08L33/12C08L39/08
CPCC08F130/08C08F220/06C08F220/14C08F220/54C08F226/06C08L33/02C08L33/24C08L39/08C08L43/04C08F230/08C08F222/385C08F222/102
Inventor 刘继广王锐张秀芹
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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