Beijing National Laboratory for Molecular Sciences,Radio Chemistry and Radiation Chemistry Key Laboratory of Fundamental Science,The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China;
Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China;
POSS; Silicone rubber; Thermal stability; Radiation resistance; Radiation crosslinking and degradation; mechanism;