Ordering of thin diblock copolymer films.
作者： A. Menelle , T. P. Russell , S. H. Anastasiadis , S. K. Satija , C. F. Majkrzak
DOI: 10.1103/PHYSREVLETT.68.67
关键词: Crystal structure 、 Reflectivity 、 Polymer 、 Thin film 、 Neutron 、 Materials science 、 Condensed matter physics 、 Neutron scattering 、 Phase transition 、 Copolymer
摘要: The ordering in thin films of symmetric diblock copolymers has been studied by neutron reflectivity as a function temperature and film thickness. Exponentially damped oscillatory variations the concentration are shown to propagate info specimens from both surfaces with decay lengths increasing decreasing temperature. No distinguishable order-to-disorder transition is observed; only partially fully ordered state found. this found depend power-law manner on thickness
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