可控活性自由基聚合制备端基官能化聚合物研究进展

端基官能化聚合物是指那些在聚合物末端或悬垂端含有活性官能团的聚合物。它们可发挥交联剂或扩链剂的作用,从而制备出不同结构特点的嵌段聚合物、接枝聚合物、星型、超支化或树状聚合物。文章主要对引发转移终止剂(Iniferter)法、原子转移自由基聚合(ATRP)、氮氧自由基调控聚合(NMRP)和可逆加成-断裂链转移自由基聚合(RAFT)等可控活性自由基聚合方法在制备端基官能化聚合物中的应用进行了介绍。最后对可控活性自由基聚合在功能性聚合物制备中的应用前景进行了展望。

Advances in Synthesis of Functionally-terminated Polymer by Controlled/Living Radical Polymerization

Functionally-terminated polymer,defined as macromolecules that contain two reactive terminal groups,are used as cross-linkers,chain extenders and important building blocks for various macromolecular structures,including block and graft copolymers,star,hyperbranched or dendritic polymers.This review describes the general techniques for preparing functionally-terminated polymer via controlled/living radical polymerization,including initiator-transfer agent-terminator (inifenter) method,atom transfer radical polymerization,nitroxide mediated radical polymerization,reversible addition-fragmentation chain transfer polymerization.We also provide a prospect upon this field.