Change of rheological characteristics of elastomers during the crosslinking induction period

Autor:	S.G. Kulichikhin, V. D. Yulovskaya, A. Ya. Malkin, A. A. Donskoi, A.G. Davtyan, V.A. Shershnev
Rok vydání:	1991
Předmět:	Molecular mass Induction period General Engineering Vulcanization Thermodynamics Elastomer Power law law.invention chemistry.chemical_compound Viscosity chemistry Rheology law Polymer chemistry Isoprene
Zdroj:	Polymer Science U.S.S.R.. 33:1874-1878
ISSN:	0032-3950
DOI:	10.1016/0032-3950(91)90026-m
Popis:	Rheological behaviour of elastomer compositions based on poly(cis-1,4-isoprene) was investigated by means of a rotational viscometer during the induction period of the crosslinking process. The rise in viscosity observed during this period is by no means associated with the presence of vulcanization agents or an accelerator of vulcanization, since it proceeds even in their absence. The molecular mass of poly(isoprene) increases and the relationship between the molecular mass and viscosity obeys a power law with exponent equal to 5.6. An exponent of such magnitude can be explained by the formation of branched structures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26fb2fd8a951b73d38d65fa87a3c0d79 https://doi.org/10.1016/0032-3950(91)90026-m Zobrazit plný text záznamu