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Non-Toxic, Green Polyhydroxyurethanes Synthesized From Abundant Glucose Sources.

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This summary is machine-generated.

Researchers developed novel non-isocyanate polyhydroxyurethanes (NIPUs) from D-glucose derived cyclic carbonates. These biocompatible and degradable polymers show promise for biomedical applications and coatings.

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biocompatibleglucosenon‐isocyanate routenon‐toxicpolyhydroxyurethane

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Area of Science:

  • Polymer Chemistry
  • Biomaterials Science
  • Organic Synthesis

Background:

  • Conventional polyurethanes often rely on toxic isocyanates, posing health and environmental risks.
  • There is a growing demand for sustainable and biocompatible polymers derived from renewable resources.
  • Non-isocyanate polyurethanes (NIPUs) offer a safer alternative but require efficient synthesis routes.

Purpose of the Study:

  • To synthesize novel cyclic carbonate monomers from D-glucose.
  • To develop a series of non-isocyanate polyhydroxyurethanes (NIPUs) using these monomers.
  • To evaluate the physicochemical properties, biocompatibility, and degradability of the synthesized NIPUs.

Main Methods:

  • Synthesis of a 6-membered mono-cyclic carbonate from D-glucose.
  • Thiol-ene reaction to produce 6-membered bis-cyclic carbonates.
  • Catalyst-free polymerization of bis-cyclic carbonates with various diamines to form NIPUs.
  • Characterization using NMR, FTIR, HRMS, GPC, TGA, and DSC.

Main Results:

  • Novel mono- and bis-cyclic carbonates were synthesized in good to excellent yields (65%-80%).
  • Six NIPUs (NIPU1-NIPU6) were successfully prepared with molecular weights ranging from 7,500 to 160,000 g/mol.
  • The NIPUs exhibited glass transition temperatures between -7°C and -21°C and degradation temperatures (Td,10%) between 195°C and 245°C.
  • All synthesized NIPUs demonstrated enzymatic degradability and biocompatibility.

Conclusions:

  • D-glucose derived cyclic carbonates are effective monomers for synthesizing NIPUs.
  • The developed NIPUs are non-toxic, biocompatible, and enzymatically degradable.
  • The presence of hydroxyl groups allows for further functionalization, making these polymers suitable for biomedical applications, coatings, and adhesives.