Tricontinuous Nanostructured Polymers via Polymerization-Induced Microphase Separation

Stacey A. Saba, Bongjoon Lee, Marc A. Hillmyer

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Nanostructured tricontinuous block polymers allow for the preparation of single-component materials that combine multiple properties. We demonstrate the synthesis of a mesoporous material from the selective orthogonal etching of a microphase-separated tricontinuous block polymer precursor. Using the synthetic approach of polymerization-induced microphase separation (PIMS), divinylbenzene (DVB) is polymerized from a mixture of poly(isoprene) (PI) and poly(lactide) (PLA) macro-chain transfer agents. In the PIMS process in situ cross-linking by the DVB arrests structural coarsening, resulting in a disordered block polymer morphology that we posit exhibits three nonintersecting continuous domains. Selective etching of the PI domains by olefin cross metathesis and PLA domains by hydrolytic degradation produces a mesoporous polymer with two independent pore networks arising from the different etch mechanisms.

Original languageEnglish (US)
Pages (from-to)1232-1236
Number of pages5
JournalACS Macro Letters
Volume6
Issue number11
DOIs
StatePublished - Nov 21 2017

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