Synthesis of Polyketone STCO Promoted by Rare Earth Catalyst

【摘要】 <正>To lower the cost of polyketone synthesis, rare earth coordinate catalyst was introduced to the copoiymerization of carbon monoxide (CO) and styrene (ST) to synthesize aliphatic polyketone STCO. The catalytic system was composed of rare earth neodymium acetate, yttrium acetate, 2,2’-bipyridine, p-toluensulfonic acid, cupric p-toluensulfonate, and 1,4-benzoquinone. The catalyst and the copolymer were characterized by infrared spectrum and X-ray photoelectron spectrosco py respectively. The effects of each component of catalytic system and the kinds of rare earth acetates on catalytic activity of copoiymerization were investigated. The results show that the proposed rare earth has distinct catalytic activity in the copoiymerization of CO and ST and the maximum activity can reach 303.3 gSTCO/(mol·h).更多还原

【Abstract】 To lower the cost of polyketone synthesis, rare earth coordinate catalyst was introduced to the copoiymerization of carbon monoxide (CO) and styrene (ST) to synthesize aliphatic polyketone STCO. The catalytic system was composed of rare earth neodymium acetate, yttrium acetate, 2,2’-bipyridine, p-toluensulfonic acid, cupric p-toluensulfonate, and 1,4-benzoquinone. The catalyst and the copolymer were characterized by infrared spectrum and X-ray photoelectron spectrosco py respectively. The effects of each component of catalytic system and the kinds of rare earth acetates on catalytic activity of copoiymerization were investigated. The results show that the proposed rare earth has distinct catalytic activity in the copoiymerization of CO and ST and the maximum activity can reach 303.3 gSTCO/(mol·h).更多还原