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- W1551896656 abstract "When a mixture of propylene oxide and styrene in methylene dichloride was reacted with boron trifluoride etherate as catalyst, a copolymer and the homopolymer of propylene oxide were formed. The poly(propylene oxide) was formed almost quantitatively in the initial stage of the reaction. The amount of homopolymer then gradually decreased as the formation of the copolymer progressed. The copolymer was also formed by the polymerization of styrene in the presence of poly(propylene oxide). The copolymerization is thought to proceed largely by a chain-transfer reaction. Bei Umsetzung einer Lösung von Propylenoxid und Styrol in Methylenchlorid mit Bortrifluoridätherat als Katalysator bildet sich ein Copolymeres undas Homopolymere des Propylenoxids. Das Polypropylenoxid wird im Anfangsstadium der Reaktion nahezu quantitativ gebildet. Die Menge des Homopolymeren sinkt dann in dem Maße, wie die Bildung des Copolymeren fortschreitet. Das Copolymere bildet sich auch bei der Polymerisation des Styrols in Gegenwart. von Polypropylenoxid. Es wird angenommnen, daß die Copolymerisation größtenteils dureb eine Kettenübertragung vor sich. geht." @default.
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- W1551896656 date "1969-05-22" @default.
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- W1551896656 doi "https://doi.org/10.1002/macp.1969.021240125" @default.
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