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Method for preparing PC-g-PMMA grafted copolymer by adopting electron beam irradiation method

A technology of graft copolymer and electron beam irradiation, which is applied in the field of preparation of PC-g-PMMA graft copolymer, can solve the problems such as complex synthesis process, and achieve the effect of simple process, improved compatibility and high efficiency

Active Publication Date: 2010-06-23
NANTONG GUANGTAI BIOCHEM PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No matter what kind of chemical reaction grafting method often involves a variety of raw materials and multi-step reactions, the synthesis process is relatively complicated.

Method used

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  • Method for preparing PC-g-PMMA grafted copolymer by adopting electron beam irradiation method
  • Method for preparing PC-g-PMMA grafted copolymer by adopting electron beam irradiation method
  • Method for preparing PC-g-PMMA grafted copolymer by adopting electron beam irradiation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: An appropriate amount of PC powder is placed in a PE ziplock bag for electron beam pre-irradiation treatment, and the irradiation dose is 15KGray. The above pre-irradiated PC powder was immersed in the monomeric MMA, and the catalyst FeSO was added 4 and H 2 SO 4 , according to the amount of MMA added, calculate the addition amount of catalyst, make its concentration in the system be 0.001mol / L and 0.1mol / L respectively. The reaction was carried out under nitrogen protection condition for 6 hours, and the reaction temperature was kept at 60°C. The reaction product was filtered by suction, soaked in acetone and washed several times, then washed several times with deionized water and finally dried under vacuum at 80° C. for 24 hours. The FT-IR figure of the obtained PC-g-PMMA graft copolymer sees figure 1 , 1727cm -1 The nearby characteristic peaks prove the occurrence of grafting reaction.

[0022] The preparation of PC / PMMA blend: a certain amount of PC...

Embodiment 2

[0023] Example 2: The PC film is placed in a PE ziplock bag for electron beam pre-irradiation treatment, and the irradiation dose is 30KGray. The above pre-irradiated PC powder was immersed in the monomer MMA and the solvent butyl acetate, the volume ratio (MMA to butyl acetate) was 1:2, and the catalyst FeSO 4 and H 2 SO 4 , according to the amount of added MMA and solvent, calculate the amount of catalyst that needs to be added, so that its concentration in the system is 0.001mol / L and 0.1mol / L respectively. The reaction was carried out under nitrogen protection condition for 6 hours, and the reaction temperature was kept at 90°C. The reaction product was filtered by suction, soaked in acetone and washed several times, then washed several times with deionized water and finally dried under vacuum at 80° C. for 24 hours. The FT-IR figure of the obtained PC-g-PMMA graft copolymer sees figure 1 , 1727cm -1 The nearby characteristic peaks prove the occurrence of grafting rea...

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Abstract

The invention relates to a method for preparing a PC-g-PMMA grafted copolymer by adopting an electron beam irradiation method. The method comprises the following steps of: carrying out a grafted reaction on a PC sample and an MMA monomer after the PC sample is subjected to the electron beam pre-irradiation under the conditions of a certain solvent and oxidation-reduction catalysts, carrying out suction filtration, washing and drying to obtain a product. The PC-g-PMMA grafted copolymer has excellent performances and can be used as a bulking agent of a PC / PMMA blending system. The electron beam irradiation grafted method adopted in an experiment has the characteristics of high efficiency, simple and convenient process, easy control and the like as well as favorable development prospect.

Description

technical field [0001] The invention relates to a preparation method of a PC-g-PMMA graft copolymer, in particular to a method for preparing a PC-g-PMMA graft copolymer by electron beam irradiation. Background technique [0002] With the continuous development of industry in modern society, various new composite materials are being developed and utilized at an alarming rate. In terms of transparent materials, transparent resin is gradually replacing ordinary glass in many aspects. Compared with traditional glass, transparent resin has light weight. , high light transmittance, not easy to be brittle, etc. Among them, polycarbonate and plexiglass are the most outstanding and widely used. [0003] Bisphenol A polycarbonate (PC) is a thermoplastic engineering plastic with excellent performance. It has the advantages of good toughness, good thermal stability, good transparency, and low water absorption. It has a wide range of industrial applications and can be used as into optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/02C08F2/46C08F4/40C08J7/18
Inventor 刘引烽冉明浩杨红冒海燕陆强周瑞敏华国飞胥成
Owner NANTONG GUANGTAI BIOCHEM PROD
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