The crosslinked polyacrylonitrile (PAN) wassynthesized by suspension polymerization using acrylonitrile(ANT) and divinylbenzene (DVB). Effects of a varietyof conditions on the polymerization of PAN particle sizeand st...The crosslinked polyacrylonitrile (PAN) wassynthesized by suspension polymerization using acrylonitrile(ANT) and divinylbenzene (DVB). Effects of a varietyof conditions on the polymerization of PAN particle sizeand stiffness were investigated. Polyketone was preparedby the copolymerization of carbon monoxide (CO) andstyrene (ST) catalyzed by PAN resin-supported palladiumacetate. The resin-supported catalyst and the copolymerizationproduct were characterized by infrared spectroscopy(IR) and Scanning Electron Microscopy (SEM). Effects ofthe components of a catalytic system and reaction time onthe catalytic activity were studied. The reusability of theresin-supported catalyst was also investigated.Results indicatedthat the resin-supported catalyst has excellent catalyticproperty. The yield of polyketone was 6.2348 g whenusing 1 g of resin and 22.4 mg of palladium acetate.展开更多
基金the National Natural Science Foundation of China(Grant No.20476080).
文摘The crosslinked polyacrylonitrile (PAN) wassynthesized by suspension polymerization using acrylonitrile(ANT) and divinylbenzene (DVB). Effects of a varietyof conditions on the polymerization of PAN particle sizeand stiffness were investigated. Polyketone was preparedby the copolymerization of carbon monoxide (CO) andstyrene (ST) catalyzed by PAN resin-supported palladiumacetate. The resin-supported catalyst and the copolymerizationproduct were characterized by infrared spectroscopy(IR) and Scanning Electron Microscopy (SEM). Effects ofthe components of a catalytic system and reaction time onthe catalytic activity were studied. The reusability of theresin-supported catalyst was also investigated.Results indicatedthat the resin-supported catalyst has excellent catalyticproperty. The yield of polyketone was 6.2348 g whenusing 1 g of resin and 22.4 mg of palladium acetate.
