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Renewable low viscosity polyester-polyols for biodegradable thermoplastic polyurethanes

Journal Article · · Journal of Applied Polymer Science
DOI:https://doi.org/10.1002/app.53062· OSTI ID:2418604
In the transition to renewably sourced, biodegradable polymers, the preparation of low viscosity polyester-polyols has posed a challenge for renewable polyurethane (PU) development. Low viscosity polyols not only reduce the requirement for high process temperatures but also decrease manufacturing time. In our efforts to incorporate increasing ratios of bio-based monomers into renewable PUs, we mixed diacids such as even carbon sebacic acid and odd carbon azelaic acid along with a renewable diol. This provided library of 2000 g/mol molecular weight polyester-polyols, and structures were established by 1H and 13C NMR analysis. The prepared polyester-polyols offered lower viscosity and enable lower fabrication temperatures to make TPUs, and their structure and material metrics were evaluated. The formation of TPUs is ascertained from FTIR and NMR analysis. The final TPUs displayed good physical and mechanical properties. Further, these TPUs exhibited Tg in the range of -56.5 to -39.7°C, corresponding to TPU soft block structure, and Tm between 98.3 and 105.1°C originating from the hard segment. Prepared TPUs exhibit excellent biodegradation under compost environmental conditions. These TPUs showed up to 57% decrease in molecular weight by GPC analysis after 9 weeks of biodegradation, and respirometer analysis displayed up to 97% biodegradation over 120 days.
Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF)
Grant/Contract Number:
EE0008246; EE0009295
OSTI ID:
2418604
Alternate ID(s):
OSTI ID: 1885628
OSTI ID: 2503944
Journal Information:
Journal of Applied Polymer Science, Journal Name: Journal of Applied Polymer Science Journal Issue: 43 Vol. 139; ISSN 0021-8995
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (32)

Nature or Petrochemistry?—Biologically Degradable Materials journal February 2004
Improved dynamic properties of thermoplastic polyurethanes made from co‐monomeric polyester polyol soft segments based on azelaic acid
  • Tuan Ismail, Tuan Noor Maznee; Ibrahim, Nor Azowa; Poo Palam, Kosheela Devi
  • Journal of Applied Polymer Science, Vol. 138, Issue 33 https://doi.org/10.1002/app.50815
journal April 2021
Synthesis of Renewable Copolyacetals with Tunable Degradation journal April 2016
Thermoplastic polyurethanes derived from petrochemical or renewable resources: A comprehensive review journal July 2017
Cross-metathesis of biorenewable dioxalates and diols to film-forming degradable polyoxalates journal May 2018
Structure analysis and thermal degradation characteristics of bio-based poly(propylene succinate)s obtained by using different catalyst amounts journal April 2017
Comparison of Adipic Versus Renewable Azelaic Acid Polyester Polyols as Building Blocks in Soft Thermoplastic Polyurethanes journal September 2016
Seed oil based polyester polyols for coatings journal February 2009
Bioplastic from Renewable Biomass: A Facile Solution for a Greener Environment journal March 2021
Effect of chemical structure on the biodegradation of polyurethanes under composting conditions journal November 1998
Biodegradation of polyurethane: a review journal June 2002
A brief discussion on advances in polyurethane applications journal July 2020
Effect of bio-based components on the chemical structure, thermal stability and mechanical properties of green thermoplastic polyurethane elastomers journal January 2020
Life cycle assessment of bio-based and fossil-based plastic: A review journal July 2020
Renewable polymers and plastics: Performance beyond the green journal January 2021
Synthesis methods, chemical structures and phase structures of linear polyurethanes. Properties and applications of linear polyurethanes in polyurethane elastomers, copolymers and ionomers journal August 2007
Renewable Polyurethanes from Sustainable Biological Precursors journal April 2021
100th Anniversary of Macromolecular Science Viewpoint: Redefining Sustainable Polymers journal December 2020
Synthesis of Biobased Polyurethane from Oleic and Ricinoleic Acids as the Renewable Resources via the AB-Type Self-Condensation Approach journal April 2010
Sustainable polymers from renewable resources journal December 2016
Bioplastics for a circular economy journal January 2022
Residual Monomer Content Affects the Interpretation of Plastic Degradation journal February 2019
Synthesis of biodegradable polymers from renewable resources journal January 2012
Sustainable polyacetals from isohexides journal January 2014
Polyurethane types, synthesis and applications – a review journal January 2016
Renewable polyols for advanced polyurethane foams from diverse biomass resources journal January 2018
Flexible polyurethanes, renewable fuels, and flavorings from a microalgae oil waste stream journal January 2020
Refining plant oils and sugars to platform chemicals, monomers, and polymers journal January 2021
Tailor-made compostable polyurethanes journal January 2022
Biodegradable Plastics from Renewable Resources journal April 2007
Biodegradable and compostable alternatives to conventional plastics journal July 2009
Biodegradation of synthetic polymers in soils: Tracking carbon into CO 2 and microbial biomass journal July 2018