1,3,5-triazine derivative compounds with high or low polymerization degree and preparation methods

Abstract

The invention discloses 1,3,5-triazine derivative compounds with high or low polymerization degrees and preparation methods. Cyanuric chloride is taken as a raw material, a 1,3,5-triazine derivative compound (Ia) with the low polymerization degree is synthesized firstly through step-by-step pressurizing, batch charging and polymerization of different temperature sections, and a 1,3,5-triazine derivative compound (Ib) with the high polymerization degree is prepared from the 1,3,5-triazine derivative compound (Ia) as the raw material. Compared with other similar triazine polymers, the polymerization degrees of the 1,3,5-triazine derivative compounds are further increased, and the 1,3,5-triazine derivative compound (Ib) with the high polymerization degree has higher heat stability. The compounds are taken as fire retardants for application and constitute self-extinguishing thermoplastic polymers or elastomers. The compounds can be uniformly dispersed in the polymers, so that the flame retardant property of the compounds is enhanced, and the compounds can be widely applied to high polymer materials such as plastics, rubber, coatings and the like; the compounds can further be taken as light stabilizers to be dispersed in the materials, and have broad applications.

Description

technical field The invention belongs to the field of chemical materials, and relates to a class of new materials and a production process thereof, in particular to a class of triazine-based polymers with flame retardancy and light stability and a preparation method thereof. Background technique Since the mid-20th century, polymer materials have been widely used in various fields of the national economy, and the fire losses caused by them have also reached more than 100 billion U.S. dollars. Therefore, the flame retardancy of polymer materials is extremely necessary. The flame retardant treatment of polymer materials is usually to add various flame retardants to the material to prevent the material from igniting, or to delay the combustion reaction, so as to minimize the loss caused by the fire. Commonly used flame retardants are halogen-based, phosphorus-based, metal oxides or hydroxides, etc. However, these traditional materials have more or less negative effects after...

AI Technical Summary

Problems solved by technology

In CN 10575408A, US20150057395, and US20120245291, the low degree of polymerization may be due to the "one-pot method" preparation of the initial raw material from 1,3,5-triazine in the literature, resulting in the hydrolysis of raw materials or intermediate products in the reaction system And thermal decomposition produces a large number of small molecules entrapped in the reaction system without being effectively separated and then proceeds directly to the subsequent polymerization reaction, thus hindering the polymerization of higher molecular weight in the reaction system, resulting in a low final degree of polymerization of the material, which is generally lower than 10

A low degree of polymerization will directly result in a reduction in the application performance of the material.

On the other hand, the catalytic effect of the catalyst may also have a certain impact on the depth of the reaction.