Glass-transition temperature and microstructure of polybutadienes

Autor: E. V. Temnikova, N. Makhiyanov
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