Mechanical and thermal behaviour of networks with “flexible” and “rigid” chains

✍ Scribed by Andrea Müller; Reimund Stadler

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 515 KB
• Volume: 197
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1996.021970416

✦ Synopsis

Abstract

“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.