原子转移自由基聚合(ATRP)是一种活性自由基聚合方法,通过它可以合成结构可控的官能性聚合物.双官能性聚合物是制备嵌段聚合物和模型网络的前驱体,具有较大的理论和应用价值,寻求新的双官能引发剂以获得末端官能性聚合物已经成为当前ATRP研究领域的重要研究方向之一,根据报道,
3-Chloro-2-(chloromethyl)-1-propene (CCMP) was synthesized and used to initiate atom transfer radical polymerization (ATRP) of styrene catalyzed by copper ( Ⅰ ) chloride/2,2′-bipyridine at 125℃. As a difunctional initiator, CCMP can initiate ATRP of styrene with two living end sites at the same time. The structure of the obtained α,ω-chloropolystyrene was confirmed by ^1H-NMR spectra. The living character of the ATRP process is indicated by narrow molecular weight distributions of the obtained polystyrene (Mw/Mn 〈 1.5), a linear In( [ M]0/[ M] ) versus time profile and predictable molecular weights proportional to monomer conversion.