Entanglements in linear and cyclic poly(dimethyl siloxane) and other polymers

✍ Scribed by R.F.T. Stepto

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 295 KB
• Volume: 29
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(93)90113-t

✦ Synopsis

Linear and cyclic PDMS have a common value of Me, the molar mass between entanglements. This phenomenon can be understood by recasting the Graessley-Edwards approach to entanglements in linear polymers in terms of binary interactions. The resulting equations provide a correction to the Graessley-Edwards equations for Mc and Me, the entanglement molar mass from the plateau modulus, and define the conditions for common values of Mc and M e for linear and cyclic polymers of the same chain structure.