Method for preparing fluorinated acrylate copolymer

A technology of fluorinated polyacrylate and butyl methacrylate, which is applied in the field of preparation of organic polymers, can solve the problems of complex process and difficult removal of polymerization product catalysts, and achieve the effect of reducing the content

Inactive Publication Date: 2009-09-30
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, although ATRP technology is an effective means to prepare polymers with controllable struct...

Method used

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  • Method for preparing fluorinated acrylate copolymer
  • Method for preparing fluorinated acrylate copolymer
  • Method for preparing fluorinated acrylate copolymer

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the implementation of the present invention is described in detail:

[0030] Selection of raw materials:

[0031] (1) Select methyl methacrylate and butyl methacrylate monomers (MMA / BMA) and refine them. Add 100 mL of methacrylate monomer to a 250 mL separatory funnel and use 20 mL of 5% NaOH solution was washed several times until the aqueous layer was colorless. The purpose of washing with 5% NaOH solution is to remove the polymerization inhibitor in the monomer. Continue washing the methacrylate monomer with deionized water until the aqueous layer is neutral. Store in a brown bottle and store in the refrigerator for later use.

[0032] (2) select stearyl methacrylate (ODMA) for use, and carry out refining, the solid monomer is dissolved in normal hexane at first, extract several times with 5% NaOH aqueous solution, continue washing with deionized water, until the water layer is neutral. The solvent was removed by d...

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Abstract

The invention discloses a method for preparing an organic polymer, in particular a method for preparing low-fluorine content, high-hydrophobicity and high-lipophobicity fluorinated acrylate copolymer. The method comprises the following steps that: monomers such as methyl methacrylate, butyl mthacrylate and octadecyl methacrylate (ODMA) are copolymerized with perfluoroalkylethyl methacrylate (FMA); an anionic emulsifier (SDS) and a non-ionic emulsifier (OP-10) form a composite emulsifier; potassium persulphate (KPS) is used as an initiator; and the fluorinated acrylate copolymer is obtained through pre-emulsion treatment, reactions under a certain temperature condition and post treatment. The method has the advantages that the copolymer prepared by the method has excellent surface performance, convenient preparation, energy conservation and environmental protection under a condition of low fluorine monomer content. The copolymer prepared by the invention has wide applications.

Description

technical field [0001] The invention relates to a method for preparing an organic polymer, in particular to a method for a fluorinated acrylate copolymer with low fluorine content and high hydrophobic and oleophobic properties. Background technique [0002] It is a common method to introduce fluorine to reduce the surface energy of polymers, but the effective utilization of fluorine has always been a concern. Ensuring the excellent surface properties of polymers while reducing the amount of fluorine monomers is one of the development directions for the development of fluoropolymer material products. The excellent surface properties of fluorinated polymers come from the enrichment of fluorine-containing components on the surface and the structure they form on the surface. The enrichment of fluorine-containing components on the surface and the orientation and ordered arrangement of perfluoroalkyl groups on the surface are closely related to the chain structure of fluorinated ...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F220/18C08F220/22C08F2/26C08F2/30
Inventor 王新平张伟陈雷倪华刚
Owner ZHEJIANG SCI-TECH UNIV
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