Institute for Polymer Research 40th Anniversary Distinguished Lecturer: Marc HillmyerExport this event to calendar

Thursday, May 10, 2018 — 10:00 AM EDT

Nanoporous Materials Employing Disordered Block Polymers as Key Ingredients

Marc Hillmyer
McKnight Presidential Endowed Chair
Distinguished University Teaching Professor
Center for Sustainable Polymers Director
Department of Chemistry
University of Minnesota

Thursday, May 10, 2018
10:00 a.m.
QNC 0101

Abstract:  Self-assembled block polymers containing a sacrificial (i.e., chemically etchable) component are versatile precursors to functional nanoporous materials. The two most common ordered morphologies used to generate nanoporous materials in this way are the hexagonally-packed cylindrical and bicontinuous  gyroid phases. In this talk I will discuss our approaches to nanostructured, bicontinuous but disorganized morphologies through either thermal or light-induced chemical fixation of block polymers in the disordered state in close proximity to the order-disorder transition. Composition fluctuations in disordered block polymers can be trapped using this versatile strategy. In the cases where one of the blocks is chemically etchable (e.g., polylactide), nanoporous polymers with narrow pore size distributions can be generated and utilized as, for example, ultrafiltration membranes for water purification. I will focus on the synthesis, characterization and applications of this class of nanoporous and related nanostructured materials.

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