A kind of bisbenzenesulfonate interfacial initiator and preparation method thereof

Abstract

The invention relates to a bisbenzenesulfonate interface initiator and a preparation method thereof. Synthesize a tertiary amine compound containing bisbenzenesulfonate anion and didodecanyl, so that it exhibits the characteristics of a surfactant. At the same time, the tertiary amine can undergo a redox reaction with potassium persulfate at room temperature. Cationic free radicals are formed on the surface, and then converted into carbon free radicals at adjacent positions. The generation of free radicals can be repeated many times, flexibly controlled, and multi-phase series polymerization is realized. Styrene and acrylic acid are initiated sequentially on the water / oil interface. Polymerization of butyl ester and styrene and N,N-dimethylacrylamide to obtain a multi-block copolymer. Experiments have proved that the feed ratio of the monomer is very consistent with the composition ratio of the copolymer, indicating that the initiator has a higher initiation efficiency. , the polymerization reaction conditions of this mode are mild and controllable, the energy consumption is low, no other organic solvents and emulsifiers are used, and the product is pure, which fully meets the requirements of green chemistry.

Description

technical field [0001] The invention relates to the technical field of polymer material synthesis, in particular to a bisbenzenesulfonate interface initiator and a chemical preparation method thereof. The novel initiator can be used for the green synthesis of various polyolefin polymer materials. Background technique [0002] Polyolefin is a very important polymer material with adjustable structure, various types and wide application. These materials are generally obtained by homopolymerizing or copolymerizing olefin monomers through initiators. According to different polymerization occasions, initiators can be divided into two categories: oil-soluble and water-soluble, corresponding to the polymerization of oil-soluble and water-soluble monomers respectively. Water-soluble initiators can also initiate the polymerization of oil-soluble monomers by diffusing into emulsion microcapsules, which is surfactant-assisted emulsion polymerization. In the existing polymerization tech...

AI Technical Summary

Problems solved by technology

In the existing polymerization technology, the initiator is only a compound that can generate free radicals. Their use is restricted by the properties of different monomers. People often spare no effort in the design of polymer structures, but the improvement of initiators is insufficient. , although living radical polymerization technology can make the synthesis of block copolymers simple and convenient, these living radical polymerizations can only be carried out in the organic phase generally, and cross-phase polymerization cannot be achieved. Insufficient performance, limited application value, so far cannot be widely promoted

Images