On The Degelation Of Networks - Case Of The Radiochemical Degradation Of Methyl Methacrylate - Ethylene Glycol DiMethacrylate Copolymers

Methyl methacrylate networks were synthetized and submitted to radiochemical degradation. Ageing was monitored by means of sol-gel analysis and glass transition temperature measurements. Networks were shown to undergo exclusively chain scission process leading to the degelation of network. The critical conversion degree corresponding to degelation (loss of all elastically active chains) is discussed regarding a statistical theory.