Triazine series oligomer and its synthesizing method

A synthesis method and oligomer technology, applied in the direction of organic chemistry, etc., can solve the problems of discontinuous reaction process, large amount of organic solvent, poor thermal stability of products, etc., and achieve convenient solvent recovery and treatment, less amount of organic solvent, and thermal stability. good stability effect

Inactive Publication Date: 2009-06-17
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a novel triazine oligomerization method to solve the disadvantages of discontinuous reaction process, long reaction time, large amount of organic solvent, difficult solvent recovery, poor product thermal stability and low carbon formation in the prior art. substances and their synthesis methods

Method used

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  • Triazine series oligomer and its synthesizing method
  • Triazine series oligomer and its synthesizing method
  • Triazine series oligomer and its synthesizing method

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specific Embodiment approach 1

[0014] Specific embodiment one: the general structural formula of the triazine oligomer of the present embodiment is:

[0015] In the formula: m 1 = 0 or 1, m 2 =1 or 2; R=(CH 2 ) n1 , n1=1~6; X means NHR 1 NH or or where R 1 =(CH 2 ) n2 Or benzene ring, n2=2~6; Y represents piperazine or or m=1-15.

specific Embodiment approach 2

[0016] Specific embodiment two: the synthetic method step of present embodiment triazine series oligomer is as follows: one, take cyanuric chloride as starting raw material, take inorganic alkali as acid-binding agent, cyanuric chloride is added in the reaction vessel, Add solvent to the reaction vessel to disperse cyanuric chloride evenly, add alcohol amine and acid-binding agent dropwise to the reaction vessel under the condition of 0-10°C, control the dropping speed of the acid-binding agent, so that the pH value of the solution can be controlled After 5 to 7 hours of reaction for 2 to 4 hours, when the pH value of the reaction solution is close to neutral, the first step of substitution reaction is completed, and a substituted product of cyanuric chloride, 2-hydroxyalkylamino-4,6-dichloro -1,3,5-triazine, wherein the molar ratio of cyanuric chloride and alkanolamine is 1:1; 2. Raise the temperature to 40~70° C., drop the dichlorohydrin used in the second step substitution r...

specific Embodiment approach 3

[0018] Specific embodiment three: In this embodiment, in step one, the solvent is acetone, water or a mixture of acetone and water. Others are the same as in the second embodiment.

[0019] In this embodiment, when the solvent is a mixture, acetone and water are mixed in any ratio.

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Abstract

The invention relates to a triazine series oligomer and the compound method. The method has the following steps: adding solvent into cyanuric chloride, dropping alkylol amine and acid roping agent to gain substitute of cyanuric chloride; heating, dropping diamidogen and acid roping agent to gain the substitute of cyanuric chloride; adding diamidogen and acid roping agent into reaction solution, heating, pumping, washing, and drying to gain triazine series oligomer. The invention has strong charring and expanding ability, and good thermal stability. It has advantages of continuously reaction process, short reaction time, simple compounding technology, little organic solvent, and easy to recycle organic solvent.

Description

technical field [0001] The invention belongs to the field of organic chemistry, and in particular relates to a triazine derivative and a synthesis method thereof. Background technique [0002] Intumescent flame retardant (IFR) is a halogen-free flame retardant with phosphorus and nitrogen as the main components. When the high polymer containing IFR is heated and burned, a uniform carbon foam layer can be formed on the surface. The charcoal layer in the condensed phase can play the role of heat insulation, oxygen insulation, smoke suppression and prevention of molten droplets, so as to play a role in flame retardancy, and has good resistance to long-term or repeated exposure to flames. Intumescent flame retardant (IFR) overcomes the shortcomings of halogen-containing flame retardants, such as large combustion smoke and many molten droplets, and the adverse effects of inorganic flame retardants on material mechanics and processing properties due to large additions. It is a kin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/54
Inventor 李斌戴进峰李艳涛张秀成
Owner NORTHEAST FORESTRY UNIVERSITY
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