Thermal effects on the structure and relaxation properties of poly(monocyclopentyl itaconate)

✍ Scribed by Ricardo Díaz Calleja; Maria-Jesus Sanchis; Ligia Gargallo; Deodato Radíc

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 361 KB
• Volume: 196
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1995.021961129

✦ Synopsis

Abstract

The effect of thermal treatment and subsequent chemical structural modifications on the viscoelastic and dielectric properties of PMCPI (poly(monocyclopentyl itaconate)) was studied. The low temperature relaxation (γ‐relaxation) is unaffected by the thermal history or chemical modifications. The intermediate relaxation (β‐relaxation) is shifted by about 40°C to higher temperature after thermal treatment. The α‐relaxation (related to the glass transition temperature T~g~) suffers more striking changes when moving to higher temperatures.