A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.
一种与卤化离子具有离子键的非
金属化合物被用作活自由基聚合的催化剂。即使不使用自由基
引发剂,也可以对单体进行自由基聚合,从而获得分子量分布较窄的聚合物。活自由基聚合的成本可以大大降低,而且可以避免使用自由基
引发剂的不良影响(如副反应)。本发明具有催化剂毒性低、催化剂用量少、催化剂溶解度高、反应条件温和、无着色/无气味等优点,与传统活自由基聚合方法相比,具有明显的环境友好性和经济性。该催化剂可用于各种单体,并能合成高分子量聚合物。