引言自本世纪初Gomberg宣布制备出三苯甲基自由基后,已证明许多化合物,都是以自由基的形式,存在于溶液中或纯净的结晶固体中。三十年代以后,曾迅速发展在许多有机合成和高分子材料的生产过程中。1954年M.S.Kharasch以开创性的工作,对自由基的重要作用,发表过出色的综论。自由基反应,周知发生在气相中,任何有机化合物 Introduction Since Gomberg announced the preparation of trityl free radicals at the beginning of this century, many compounds have been shown to be in free radical form, either in solution or in pure crystalline solids. After the thirties, has rapidly developed in many organic synthesis and polymer materials in the production process. 1954 M.S. Kharasch has delivered excellent reviews with groundbreaking work on the important role of free radicals. Radical reactions, known to occur in the gas phase, are any organic compound