Method for preparation of polymer by molysite catalyzed atom transfer radical polymerization under natural light irradiation

Abstract

A method of molysite-catalyzed atom transfer radical polymerization under natural light irradiation belongs to the technical field of high polymer chemical reaction methods. A monomer, an initiator, a molysite catalyst, a ligand of ferric salt and a reducing agent for radical polymerization are combined into a polymerization reaction system according to certain proportion for atom transfer radical polymerization under the natural light irradiation and in presence of oxygen to obtain a polymer after the reaction. The obtained polymer has the characteristics of living polymerization. The method is simple in conditions, easy in operation and energy-saving, and provides a simple-cost living polymerization technology.

Description

technical field [0001] The invention relates to the field of macromolecule chemistry, in particular to a method for preparing a polymer by catalyzing an atom transfer radical polymerization by an iron salt under the irradiation of natural light and in the presence of oxygen. Background technique [0002] Atom transfer radical polymerization (ATRP) is a living polymerization technology developed in recent years, which has important application value. In 1995, Professor Wang Jinshan and K. Matyjaszewski (Controlled / living radical polymerization. atom transfer radical polymerization in the presence of transition-metal complexes, J Am Chem Soc, 1995,117,5614-5615.) used CuCl and 2,2 / The complexes of -bipyridyl (BPy) successfully catalyzed the copolymerization reaction of styrene and methacrylic acid. The experimental results found that the polymer synthesized by this method had a narrow relative molecular weight distribution (1.2~1.5), and the monomer conversion rate There ...

AI Technical Summary

Problems solved by technology

The technical problem to be solved in the present invention is to overcome the limitations of high temperature and high energy consumption of atom transfer radical polymerization, and to provide an atom transfer radical polymerization system catalyzed by iron salt under natural light conditions