Ligand-free atom transfer radical polymerization method under action of alkali

Abstract

The invention discloses a ligand-free atom transfer radical polymerization method under the action of alkali. The method is characterized by comprising the following step: mixing reaction raw materials comprising a monomer, an initiator and a catalyst without using a ligand under the action of alkali, so that the monomer is subjected to atom transfer radical polymerization reaction to generate a corresponding polymer. The ligand-free atom transfer radical polymerization method improves the reaction raw materials adopted in the key atom transfer radical polymerization reaction, uses alkali to participate in the reaction, can further optimize components of an atom transfer radical polymerization system, overcomes defects that toxic and volatile organic compounds or polar solvents used by the atom transfer radical polymerization system as the ligands are expensive, highly toxic and volatile in the prior art, and reduces the degree of damage to the environment and the reaction cost.

Description

technical field [0001] The invention belongs to the field of polymer synthesis, and more specifically relates to a ligand-free atom transfer radical polymerization method under the action of an alkali, which is a new implementation method of the atom transfer radical polymerization method. Background technique [0002] Atom transfer radical polymerization has become one of the most important "living" / controllable polymerization methods due to its excellent controllability, and is widely used to synthesize polymers with controllable molecular weight and narrow distribution, and has good molecular design functions . The traditional atom transfer radical polymerization method needs to add organic compounds (such as P, N-containing compounds, organic acids, ionic liquids, etc.) as ligands to form complexes with catalysts to make the system more active. Expensive and highly toxic, it cannot meet the requirements of green development and widespread use of polymerization methods. ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a ligand-free atom transfer radical polymerization method under the action of an alkali, wherein the reaction raw materials used in the key atom transfer radical polymerization reaction are carried out Improvement, the use of bases to participate in the reaction can further optimize the components of the atom transfer radical polymerization system, and overcome the organic compounds or polar solvents used in the atom transfer radical polymerization system in the prior art (such as containing P, N compounds, Organic acids, ionic liquids, and raw materials containing amide groups, etc.) as ligands have disadvantages such as high price, high toxicity and volatility, and reduce the degree of damage to the environment and reaction costs

Images