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Cited by 128biodegradable polymer synthesis and propertiesPolymer crystallization and propertiesPolymer composites and self-healing

Polymers from Fatty Acids: Poly(ω-hydroxyl tetradecanoic acid) Synthesis and Physico-Mechanical Studies

Liu, Chen, Liu, Fei, Cai, Jiali, Xie, Wenchun, Long, Timothy E., Turner, S. Richard, Lyons, Alan, Gross, Richard A.·2011·Biomacromolecules
DOI 10.1021/bm2007554
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Abstract

This Article describes the synthesis and physicomechanical properties of bioplastics prepared from methyl ω-hydroxytetradecanoic acid (Me-ω-OHC14), a new monomer available by a fermentation process using an engineered Candida tropicalis strain. Melt-condensation experiments were conducted using titanium tetraisopropoxide (Ti[OiPr](4)) as a catalyst in a two-stage polymerization (2 h at 200 °C under N(2), 4 h at 220 °C under 0.1 mmHg). Poly(ω-hydroxytetradecanoate), P(ω-OHC14), M(w), determined by SEC-MALLS, increased from 53K to 110K as the Ti(OiPr)(4) concentration increased from 50 to 300 ppm. By varying the polymerization conditions (catalyst concentration, reaction time, second-stage reaction temperature) a series of P(ω-OHC14) samples were prepared with M(w) values from 53K to 140K. The synthesized polyesters with M(w) ranging from 53K to 140K were subjected to characterization by DSC, TGA, DMTA, and tensile testing. Influences of P(ω-OHC14) molecular weight, melting point, and enthalpies of melting/crystallization on material tensile properties were explored. Cold-drawing tensile tests at room temperature for P(ω-OHC14) with M(w) 53K-78K showed a brittle-to-ductile transition. In contrast, P(ω-OHC14) with M(w) 53K undergoes brittle fracture. Increasing P(ω-OHC14) M(w) above 78K resulted in a strain-hardening phenomena and tough properties with elongation at break ~700% and true tensile strength of ~50 MPa. Comparisons between high density polyethylene and P(ω-OHC14) mechanical and thermal properties as a function of their respective molecular weights are discussed.

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  • Melt condensation of ω-hydroxyl fatty acids catalyzed by Ti(OiPr)4 via a two-stage polymerization generates polyesters with molecular weights ranging from 50 to 110 kDa.

    “Melt condensation of ω-hydroxyl fatty acids, e.g.OH(CH2)13COOH, catalyzed by Ti(O i Pr)4 via a two-stage polymerization (200 °C under N2 then 220 °C under 0.1 mmHg) generate polyesters with molecular weights ranging from 50 to 110 kDa.232”

    From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [232]

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Authors
Liu, C., Liu, F., Cai, J., Xie, W., Long, T. E., Turner, S. R., Lyons, A., & Gross, R. A.
Affiliations
  • New York University (US)
  • Virginia Tech (US)
  • College of Staten Island (US)
Corresponding author
Gross, Richard A.
ORCID
Venue
Biomacromolecules
Publisher
American Chemical Society (ACS)
Published
2011-08-09
Volume
12
Issue
9
Pages
3291-3298
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
DOI
10.1021/bm2007554
OpenAlex
W2332178981
Cited by
128
References
37
Citations by year
2026: 2 · 2025: 10 · 2024: 12 · 2023: 2 · 2022: 4 · 2021: 10 · 2020: 6 · 2019: 14 · 2018: 6 · 2017: 5 · 2016: 15 · 2015: 9 · 2014: 11 · 2013: 14 · 2012: 7
FWCI
4.32
Type
journal article
Language
en
Open access
closed
Locations
  • Biomacromolecules (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
  • Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
Keywords
bioplastics, melt polycondensation, molecular weight effects, tensile properties, ductile-to-brittle transition, strain hardening, crystallization, thermal properties
MeSH terms
Biocompatible Materials, Crystallization, Fatty Acids, Fermentation, Molecular Weight, Myristic Acids, Magnetic Resonance Spectroscopy, Polyesters, Temperature, Tensile Strength, Thermodynamics, Spectroscopy, Fourier Transform Infrared, Bioreactors, Organisms, Genetically Modified, Candida tropicalis

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