Kinetic study of random chain scission by viscometry

✍ Scribed by K. K. Chee

• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 407 KB
• Volume: 41
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1990.070410510

✦ Synopsis

Abstract

Based on the Saito's model for random chain scission, a novel procedure is developed to determine the activation energy of polymer degradation process. Basically, this is a simple viscometric technique which yields reliable results. In fact, it is superior to the existing viscometry which has been widely used to study the kinetics of random scission. The present method is successfully applied to the thermal degradation of natural rubber, polycarbonate, and poly(tetramethylene oxide) in bulk.