Cross-linked porous polyurethane materials featuring dodecaborate clusters as inorganic polyol equivalents

Dahee Jung; Fernando Raffan-Montoya; Roshini Ramachandran; Yuanyuan Zhang; Timur Islamoglu; Gustavo Marin; Elaine A. Qian; Rafal M. Dziedzic; Omar K. Farha; Stanislav I. Stoliarov; Alexander M. Spokoyny

doi:10.1039/C9CC03350E

Cross-linked porous polyurethane materials featuring dodecaborate clusters as inorganic polyol equivalents†

Dahee Jung,

^ab Fernando Raffan-Montoya,

^c Roshini Ramachandran,

^a Yuanyuan Zhang,

^d Timur Islamoglu,

^d Gustavo Marin,

^a Elaine A. Qian,

^abe Rafal M. Dziedzic,

^a Omar K. Farha,

^d Stanislav I. Stoliarov

^c and Alexander M. Spokoyny

*^ab

Author affiliations

* Corresponding authors

^a Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095, USA
E-mail: spokoyny@chem.ucla.edu

^b California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA

^c Department of Fire Protection Engineering, University of Maryland, 4356 Stadium Drive, College Park, MD 20742, USA

^d Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA

^e Department of Bioengineering, University of California, Los Angeles, 420 Westwood Plaza, Los Angeles, CA 90095, USA

Abstract

We report the discovery that a perhydroxylated dodecaborate cluster ([B₁₂(OH)₁₂]²⁻) can act as an inorganic polyol, serving as a molecular cross-linker in the synthesis of polyurethane-based materials. We further demonstrate how the inherent robustness of the utilized boron cluster can effectively enhance the thermal stability of the produced polyurethane materials incorporating [B₁₂(OH)₁₂]²⁻ building blocks compared to analogous polymers made from carbon-based polyols. Ultimately, this approach provides a potential route to tune the chemical and physical properties of soft materials through incorporation of polyhedral boron-rich clusters into the polymer network.

This article is part of the themed collection: 2019 Emerging Investigators

Chemical Communications

Cross-linked porous polyurethane materials featuring dodecaborate clusters as inorganic polyol equivalents†

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Cross-linked porous polyurethane materials featuring dodecaborate clusters as inorganic polyol equivalents

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