Meyersohn, Marianne SBlock, AlisonBates, Frank SHillmyer, Marc A2024-05-202024-05-202024-05-20https://hdl.handle.net/11299/263305The files below include raw characterization data used in all analyses. Subfolders and files are organized using the nomenclature established in the manuscript, which is also described in the “README.txt” file. All raw nuclear magnetic resonance spectroscopy data files can be accessed using MNova or Bruker software. CDX files can be viewed with ChemDraw, which is a proprietary software distributed by CambridgeSoft. Copolymerization code files can be opened with any text editor. All other files can be opened using Microsoft Excel. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force or the U.S. Government. This publication was made possible with the support of The Bioindustrial Manufacturing and Design Ecosystem (BioMADE); the content expressed herein is that of the authors and does not necessarily reflect the views of BioMADE. Marc A. Hillmyer and Frank S. Bates are co-founders of Valerian Materials which is commercializing ßMVL under the tradename Nuvone.These files contain primary data along with associated output from instrumentation supporting all results reported in the Meyersohn et al, referenced paper. We found: Thermoplastic polyurethane-ureas (TPUUs) from bio-based, depolymerizable polyesters are promising as high-value polymeric materials for a circular economy. We demonstrate the bulk room temperature polymerization of β-methyl-δ-valerolactone (βMVL, Nuvone™) using HCl (as a solution in ether) as a simple acid catalyst to prepare low molar mass polyols. One of the key challenges of poly(β-methyl-δ-valerolactone) (PβMVL) is appreciable equilibrium monomer concentration ([M]eq) at room temperature and above. To mitigate high [M]eq that results from βMVL polymerization we utilize strategies including (i) rapid distillation to rid the polymer of residual monomer, or (ii) sequestration of remaining monomer with diamines to prepare diamidodiols in situ along with the polyol, which can subsequently be used directly as chain extenders in polyurethane urea syntheses, or (iii) the copolymerization of βMVL with lactone monomers that exhibit a higher ceiling temperature to prepare copolymers with varying degrees of crystallinity, improved thermal stability, and reduced residual βMVL content. The aliphatic polyols can then be used as soft-segments in a one-pot approach to prepare TPUUs by reacting with isophorone diisocyanate and chain extending with water. The resulting TPUUs are tough, elastic materials that can be chemically recycled by depolymerization to βMVL, which can be used to prepare new TPUUs with comparable properties.CC0 1.0 Universalpolyurethane-ureachemical recyclingceiling temperaturerenewable materialscircular economyDatasethttps://doi.org/10.13020/zf53-w893