List of Articles PVDF Open Access Article Abstract Page Full-Text 1 - Comparison of the effects of graphene and nanoclay nanosheets on crystalline structure of polyvinylidene fluoride علی اکبر یوسفی Open Access Article Abstract Page Full-Text 2 - Comparison of the effects of graphene and nanoclay nanosheets on crystalline structure of polyvinylidene fluoride Ali Akbar Yousefi