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Mechanical and thermal behaviour of networks with “flexible” and “rigid” chains
Author(s) -
Müller Andrea,
Stadler Reimund
Publication year - 1996
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1996.021970416
Subject(s) - polybutadiene , telechelic polymer , differential scanning calorimetry , polymer chemistry , rigidity (electromagnetism) , materials science , thermal , dynamic mechanical analysis , polymer science , composite material , polymer , copolymer , end group , thermodynamics , physics
“Rigid‐rod” telechelics were synthesized via repetitive Diels‐Alder reaction of biscyclohexadienes and bis(1,2,4‐triazoline‐3,5‐diones). The bistriazolinediones were used in slight excess. The rigidity of the building blocks and the molecular weight were varied. Various amounts of these reactive telechelics are used to crosslink cis ‐1,4‐polybutadiene. The mechanical and the thermal properties of these two‐component networks were investigated by stress‐strain, differential scanning calorimetry and dynamic‐mechanical measurements. The occurrence of microphase separation between the “rigid” and the “flexible” components is discussed to explain the properties of these materials.