Preparation of microcapsule-supported palladium catalyst using SPG （Shirasu Porous Glass） emulsification technique

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） phosp...

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Bibliographic Details
Published in:Chinese chemical letters 2010 (8), p.979-982
Main Author: Ying Liu Xiu Juan Feng De Cai Bao Kai Xiao Li Ming Bao
Format: Article
Language:English
Subjects:
乳化技术
交联聚苯乙烯
偶氮二异丁腈
催化剂制备
多孔玻璃
微胶囊
钯催化剂
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Summary: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.
ISSN:1001-8417
1878-5964