Anionic chlorine-containing amphiphilic polymer and preparation method thereof

An amphiphilic polymer and anionic technology, applied in chemical instruments and methods, semi-permeable membrane separation, membranes, etc., can solve the problems that the hydrophilic monomer components cannot be greatly improved, and achieve excellent hydrophilicity and expand The effect of application range

Active Publication Date: 2020-03-20
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide an anionic chlorine-containing amphiphilic polymer and a separation membrane comprising the polymer. The anionic chlorine-containing amphiphilic polymer comprises a hydrophobic Chlorine monomer and anionic hydrophilic monomer, and the content of the hydrophilic component can be adjusted arbitrarily from 1% to 70wt%; and the hydrophobic component and the hydrophilic component can be selected separately, which solves the problem that the main chain cannot be greatly improved Key Issues with Hydrophilic Monomer Components

Method used

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  • Anionic chlorine-containing amphiphilic polymer and preparation method thereof
  • Anionic chlorine-containing amphiphilic polymer and preparation method thereof
  • Anionic chlorine-containing amphiphilic polymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Synthesis of the anionic chlorine-containing amphiphilic polymer P1 with the chlorine-containing macromolecule dispersant D1 solution as the dispersant:

[0096] Add 100g N, N dimethylacetamide (DMAC), 6g of vinylidene chloride, 5g of acrylic acid, 0.1g of initiator benzoyl peroxide (BPO) into the reactor, dissolve and stir at room temperature for 30 minutes under the condition of nitrogen to remove from the system oxygen. Under the condition of reflux, the temperature was raised to the polymerization temperature of 62° C., and the polymerization reaction was carried out. After 5.5 hours of reaction, the heating was stopped, and air was introduced to terminate the reaction. Obtain chlorine-containing macromolecular dispersant D1 solution. Add 2000ml of deionized water, 1.2g of D1 solution, 1g of bis(2-ethylhexyl) peroxydicarbonate (EHP) into the stainless steel reactor, vacuumize and fill with nitrogen for 3 times, then add 1500g of vinylidene chloride , Solubilizer ...

Embodiment 2

[0102] Chlorine-containing macromolecular dispersant D2 solution is the synthesis of the anionic chlorine-containing amphiphilic polymer P2 of the dispersant:

[0103] The synthesis process of D2 and P2 refers to Example 1, and the formula and process parameters are shown in Table 1 and Table 2 respectively.

[0104] The structure and performance characterization methods of D2 and P2 are the same as those in Example 1. The anionic hydrophilic monomer component content, molecular weight and molecular weight distribution of D2 are shown in Table 3; the anionic hydrophilic monomer component content, molecular weight and molecular weight distribution of P2 are shown in Table 3.

Embodiment 3

[0106] Chlorine-containing macromolecular dispersant D3 solution is the synthesis of the anionic chlorine-containing amphiphilic polymer P3 of the dispersant:

[0107] The synthesis process of D3 and P3 refers to Example 1, and the formula and process parameters are shown in Table 1 and Table 2 respectively.

[0108] The structure and property characterization methods of D3 and P3 are the same as those in Example 1. The anionic hydrophilic monomer component content, molecular weight and molecular weight distribution of D3 are shown in Table 3; the anionic hydrophilic monomer component content, molecular weight and molecular weight distribution of P3 are shown in Table 3.

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Abstract

The invention discloses an anionic chlorine-containing amphiphilic polymer and a preparation method thereof, wherein the anionic chlorine-containing amphiphilic copolymer is formed by polymerizing chlorine-containing macromolecules as a dispersing agent, a small molecular ester as a solubilizer, and a chlorine-containing monomer and other anionic hydrophilic monomers as raw materials through a free radical suspension polymerization method, wherein the chlorine-containing macromolecular dispersing agent is obtained by carrying out solution copolymerization on a chlorine-containing ethyl monomerand an anionic hydrophilic monomer in an organic solvent. According to the invention, the chlorine-containing macromolecular dispersing agent has excellent dispersing effect on chlorine-containing monomers, and the small molecular ester solubilizer can increase the intermiscibility of hydrophilic monomers and chlorine monomers, so that the high-hydrophilicity chlorine-containing amphiphilic copolymer can be prepared; the anionic chlorine-containing amphiphilic polymer can be independently used for preparing a high-hydrophilicity separation membrane, a battery diaphragm material and the like or can be blended with other resins to prepare a high-hydrophilicity separation membrane, a battery diaphragm material and the like; and compared with the existing chlorine-containing separation membrane material, the anionic chlorine-containing amphiphilic polymer is good in hydrophilicity, capable of bringing lithium ions, good in cationic adsorbability, low in cost and good in application prospect.

Description

technical field [0001] The invention belongs to the field of polymer materials, in particular to an anionic chlorine-containing amphiphilic polymer and a preparation method thereof. Background technique [0002] PVC is a non-toxic, odorless white powder. It has good chemical stability and good plasticity. Except for a few organic solvents, it can resist acid, alkali and salt at room temperature; PVC has poor thermal stability and light resistance, and it can start to decompose and change color above 140 °C. Based on the above characteristics, PVC is mainly used in the production of profiles, profiles, pipe fittings, plates, sheets, cable sheaths, hard or soft tubes, blood transfusion equipment, and films. And in the process of use, through continuous research and modification, the application field of PVC has been greatly expanded. [0003] Polyvinylidene chloride has the characteristics of flame resistance, corrosion resistance and good air tightness. Due to its strong ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/08C08F220/06C08F2/20C08J5/18B01D69/02
CPCB01D69/02B01D2325/36C08F2/20C08F214/08C08F220/06C08J5/18C08J2327/08
Inventor 朱宝库王纳川陈彦臣章鹏周名勇孙创超方立峰沈宇杰袁佳佳朱利平
Owner ZHEJIANG UNIV
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