摘要
A new method for the preparation of microcapsule-supported palladium catalyst was described.The highly monodisperse crosslinked polystyrene microcapsules containing phosphine ligand were synthesized by the self-assembling of phase separated polymer （SaPSeP） method using diphenyl（4-vinylphenyl） phosphine and divinylbenzene as a monomer and crosslinking agent,respectively, and 2,2＇-azobisisobutyronitrile（AIBN） as an initiator within the droplets of oil-in-water（O/W） emulsions,which were prepared by using the Shirasu Porous Glass（SPG） membrane emulsification technique.The prepared microcapsule-supported palladium catalyst exhibited high catalytic activity for Heck reaction and can be reused several times without loss of activity.
A new method for the preparation of microcapsule-supported palladium catalyst was described.The highly monodisperse crosslinked polystyrene microcapsules containing phosphine ligand were synthesized by the self-assembling of phase separated polymer （SaPSeP） method using diphenyl（4-vinylphenyl） phosphine and divinylbenzene as a monomer and crosslinking agent,respectively, and 2,2＇-azobisisobutyronitrile（AIBN） as an initiator within the droplets of oil-in-water（O/W） emulsions,which were prepared by using the Shirasu Porous Glass（SPG） membrane emulsification technique.The prepared microcapsule-supported palladium catalyst exhibited high catalytic activity for Heck reaction and can be reused several times without loss of activity.
基金
the National Natural Science Foundation of China(No.20572010) for financial support
supported by the program for Changjiang Scholars and Innovative Research Teams in Universities (No.IRT0711)
