Graft polymerization of styrene on lithiated poly(2,6-dimethyl-1,4-phenylene ether)

Autor:	A. J. Chalk, T. J. Hoogeboom
Rok vydání:	1969
Předmět:	chemistry.chemical_compound chemistry Polymerization Phenylene Metalation Polymer chemistry General Engineering Copolymer Ether Polystyrene Tetrahydrofuran Styrene
Zdroj:	Journal of Polymer Science Part A-1: Polymer Chemistry. 7:1359-1369
ISSN:	1542-9350 0449-296X
DOI:	10.1002/pol.1969.150070518
Popis:	Styrene has been grafted onto poly(2,6-dimethyl-1,4-phenylene ether) (I) with the use of lithiated I as an initiator. In benzene solution, solvent metalation resulted in some polystyrene homopolymer. In tetrahydrofuran, however, only graft copolymer was formed. By forming a derivative with trimethylchlorosilane and examining by NMR, it was possible to establish the proportion of lithium scavenged by impurities, the amount of polymeric lithium which reacted with styrene, and the amount which did not. The chain length of the grafted polystyrene was also calculated. No crosslinking was found, except where a high ratio of lithium to styrene resulted in some unreacted ring-metalated polymer. In this case only, reaction with trimethylchlorosilane causes some crosslinking.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7f03101545dfe060d985dc96b2d5397 https://doi.org/10.1002/pol.1969.150070518 Zobrazit plný text záznamu Plný text