Stress Accelerated Degradation in Relation to Fracture Polymeric Materials

9310761 Stivala由于氧化对聚合物材料的机械行为有不利影响，拟议的研究将增加我们对机械力-化学降解过程的理论基础的了解。这项研究将为建立机械力-化学降解过程的热力学关系提供依据，化学势是导致这一现象的驱动力。归根结底，我们将深入了解由分子过程(即应力加速氧化)导致的从延性破坏到脆性破坏的转变。***

9310761 Stivala Since oxidation adversely affects the mechanical behavior of polymeric materials, the proposed study will add to our understanding the theoretical basis of the mechano-chemical degradation process. This study will provide the basis in establishing the thermodynamic relationship for the mechano- chemical degradative process in terms of the chemical potential, the driving force responsible for the phenomena. In the ultimate analysis, an indepth understanding of the transition from ductile to brittle failure resulting from a molecular process (i.e., stress accelerated oxidation) would be afforded. ***