Litvinov, V., Ries, M., Baughman, T., Henke, A., & Matloka, P. (2013). Chain Entanglements in Polyethylene Melts. Why Is It Studied Again? Macromolecules DOI: 10.1021/ma302394j 旋转流变仪只给出体积平均的宏观…