Glass-transition temperature and microstructure of polybutadienes
Autor: | E. V. Temnikova, N. Makhiyanov |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Polymer Science Series A. 52:1292-1300 |
ISSN: | 1555-6107 0965-545X |
DOI: | 10.1134/s0965545x10120072 |
Popis: | DSC and NMR are employed to determine the glass-transition temperatures and the structural features of polybutadienes with widely varying configuration isomeric compositions. The dependences of the glass-transition temperature on the contents of cis-1,4-, trans-1,4, and 1,2-units in polybutadiene chains are plotted and discussed. An analysis of the experimental results and the published data suggests that, in the study of the glass-transition-structure relationship, simplified approaches are inapplicable and it is necessary to consider the configurational and conformational geometry of polybutadiene chains. |
Databáze: | OpenAIRE |
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