Microphase Separation in Dipolar Diblock Copolymer Melts
ORAL
Abstract
Understanding microphase separation in polar-non-polar diblock copolymer melts is a topic of great interest due to its fundamental and technological importance. In this talk, we will present our work related to modeling the effects of dipolar interactions in affecting microphase separation in linear diblock copolymer melts. Results obtained for freely rotating dipoles, applicable to high temperature disordered melts, will be presented. These results will be compared with field theory-based and coarse-grained molecular dynamics simulations for lamellar morphology. Advantages and disadvantages of the field theory-based simulations will be discussed and importance of correlations in orientations of dipoles will be highlighted.
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Presenters
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Rajeev Kumar
Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
Authors
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Rajeev Kumar
Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
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Wei Li
Oak Ridge National Laboratory, Materials Science and Engineering, Northwestern University
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Bobby G Sumpter
Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, ORNL
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Murugappan Muthukumar
University of Massachusetts Amherst, Department of Polymer Science and Engineering, University of Massachusetts Amherst, University of Massachusetts, Amherst, MA