Molecular weight distribution in polymethyl methacrylate

Autor:	Ivan Harris, R. G. J. Miller
Rok vydání:	1951
Předmět:	chemistry.chemical_classification Materials science Disproportionation Polymer Methacrylate chemistry.chemical_compound chemistry Polymerization Chemical engineering Polymer chemistry Molar mass distribution Injection moulding Turbidity Methyl methacrylate
Zdroj:	Journal of Polymer Science. 7:377-392
ISSN:	1542-6238 0022-3832
Popis:	The Morey-Tamblyn turbidity method has been used to investigate the molecular weight distribution in a series of polymethyl methacrylates including commercial and experimental injection moulding powders. Evidence has been obtained that the increase in rate of polymerization occuring in the polymerization of methyl methacrylate (Norrish-Smith effect) causes widening of the distribution in high conversion polymers, but the separation into multiple peaks reported by other authors has not been observed. From an examination of specially prepared polymers, e.g., at small degrees of conversion, it is concluded that chain combination is a more likely termination process than disproportionation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5666c9e8412a49a5efdad7315627a944 https://doi.org/10.1002/pol.1951.120070402 Zobrazit plný text záznamu Plný text