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本文从正向、反向、同时正向/反向、电子转移活化剂等不同原子转移自由基聚合(ATRP)细乳液引发体系的角度,综述了近年来国内外关于ATRP细乳液聚合的研究进展。在细乳液体系中进行正向ATRP,聚合可控性不理想;反向ATRP相对适合于细乳液体系,其缺点是表面活性剂用量较大;同时正向/反向引发体系的ATRP中催化剂用量大为减少,并且聚合具有良好的可控性;电子转移活化剂(AGET)ATRP是通过电子转移反应来还原过渡金属的氧化态,克服了同时正向/反向ATRP中需要引入自由基引发剂的缺点。
In this paper, the progress of ATRP miniemulsion polymerization at home and abroad was reviewed from the viewpoints of forward-reverse, forward / reverse, electron transfer activator and other atom-transfer radical polymerization (ATRP) . In the mini-emulsion system for the positive ATRP, polymerization controllability is not ideal; reverse ATRP is relatively suitable for the miniemulsion system, the disadvantage is the larger amount of surfactant; at the same time forward / reverse catalyst ATRP catalyst Is greatly reduced, and polymerization has good controllability; electron transfer activator (AGET) ATRP is the electron transfer reaction to restore the oxidation state of the transition metal, overcome the simultaneous forward / reverse ATRP need to introduce free radical initiator Shortcomings.