Supporting data for "Efficient Polymerization of Methyl-ε-Caprolactone Mixtures to Access Sustainable Aliphatic Polyesters"

  • Derek C Batiste (Creator)
  • Marianne S Meyersohn (Creator)
  • Marc A Hillmyer (Creator)
  • Annabelle Watts (Creator)



These files contain primary data along with associated output from instrumentation supporting all results reported in Batiste et. al. "Efficient Polymerization of Methyl-ε-Caprolactone Mixtures to Access Sustainable Aliphatic Polyesters." In Batiste et. al. we found: Aliphatic polyesters are a versatile class of materials that can be sourced from bioderived feedstocks. Poly(γ-methyl-ε-caprolactone) (PγMCL) in particular can be used to make degradable thermoplastic elastomers (TPEs) with outstanding mechanical properties. PγMCL can potentially be manufactured economically from p-cresol, a component of lignin bio oils. A complication is that additional manufacturing processes are necessary to isolate pure cresol isomers. Using mixed feedstocks of cresol isomers to access the corresponding methyl substituted ε-caprolactone (MCL) monomer mixtures would convey economic advantages to sourcing these materials sustainably. Moreover, the use of organocatalysts in lieu of traditional tin-based catalysts averts issues with potential environmental and human toxicity. With these motivations in mind, we explored the ring-opening transesterification polymerization (ROTEP) of MCL mixtures and characterized the molecular, thermal and rheological properties of the resulting copolymers. The molar mass of MCL mixtures that would be obtained from meta- and para-cresol can be readily modulated. The thermal and rheological properties of these statistical co- and terpolymers were at parity with pure PγMCL homopolymer. The use of diphenyl phosphate (DPP) and dimethyl phosphate (DMP) as organocatalysts enabled access to these materials on reasonable polymerization timescales and have potential to improve sustainability in the synthesis of these polyesters.

The folder below includes NMR, SEC, TGA, DSC, MALDI, and DMTA data for all reported samples. The zipped folder contains a series of subfolders with the data for each scheme, figure, or table, organized by the order in which each of these elements appear in the manuscript and supporting information document. and PrimaryData.RAR are the same files and data. The zip-formatted file may present an error to users working with a Windows OS, but can still be opened using a third-party program such as 7zip. This error should not occur for users using a Mac OS.

Funding information
Sponsorship: National Science Foundation, CHE-1901635
Date made available2019
PublisherData Repository for the University of Minnesota
Date of data productionJan 1 2018 - Nov 28 2019

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