ポリエチレン球晶の光学的性質と内部構造について

Abstract

It is well known that the polyethylene spherulites are classed as negatively birefringent. However, the spherulites with positive birefringence were obtained under the special conditions in our previous reports. When we observe these spherulites, they exhibit the interesting patterns in optical behavior. This paper describes more detailed studies and some suggestive models about the internal structure of these positive spherulites from above-stated experiments and observations.