Relation between the crystalline structure and molecular weight of polyethylene adipate

Autor:	N.P. Anoshina, V.I. Kovalenko, N.A. Palikhov, B.Ya. Teitel'baum, A.A. Mukhutdinov
Rok vydání:	1976
Předmět:	chemistry.chemical_classification Materials science General Engineering Polymer Crystal structure Polyethylene law.invention chemistry.chemical_compound chemistry Chemical engineering law Phase (matter) Adipate Polymer chemistry Chemical stability Crystallization
Zdroj:	Polymer Science U.S.S.R.. 18:1596-1604
ISSN:	0032-3950
DOI:	10.1016/0032-3950(76)90363-4
Popis:	Complex studies were made of the crystalline state of several polyethylene adipate samples with Mn = 300–4000. It was shown that they are all characterized by the same crystalline modifications as the preparation previously obtained with Mn = 2000. However, the temperature limits of the range of forming an α or β modification vary according to the value of Mn. At the same time there is no direct relation between the type of spherulitic structure and the phase condition of the polymer. For preparations with minimal values of Mn the thermodynamic stability of modifications is inverted as a result of the formation of highly damaged structures in low temperature crystallization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28222774cfdeb5aeb8eb462c325463f0 https://doi.org/10.1016/0032-3950(76)90363-4 Zobrazit plný text záznamu