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Related Experiment Video

Updated: Apr 25, 2026

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

Published on: October 26, 2016

Molecular engineering of manipulated alginate-based polyurethanes.

Hamed Daemi¹, Mehdi Barikani¹

¹Department of Polyurethane and Nanopolymers, Iran Polymer and Petrochemical Institute, PO Box 14965/115, Tehran, Islamic Republic of Iran.

Carbohydrate Polymers

|August 18, 2014

Summary

Novel soluble alginate-based polyurethanes were synthesized for the first time. The study details their chemical structures and how alginate

Keywords:

Chemical characterization Chemical modification Organic solvent Polyurethane TBA-alginate

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Last Updated: Apr 25, 2026

Synthesis of Thermogelling PolyN-isopropylacrylamide-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

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Microwave-assisted Functionalization of Polyethylene glycol and On-resin Peptides for Use in Chain Polymerizations and Hydrogel Formation

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Published on: October 29, 2013

Area of Science:

Polymer Chemistry
Materials Science

Background:

Polyurethanes are versatile polymers with diverse applications.
Alginate, a natural polysaccharide, offers biocompatibility and unique properties.
Integrating alginate into polyurethanes can create novel materials with enhanced functionalities.

Purpose of the Study:

To synthesize novel soluble alginate-based polyurethanes in organic solvents.
To characterize the chemical structure and properties of these new materials.
To investigate the effect of alginate incorporation on polyurethane morphology and thermal behavior.

Main Methods:

Synthesis via reaction of NCO-terminated prepolymers and tributylammonium alginate (TBA-Alg).
Characterization using Fourier-transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance ((1)H NMR), and thermogravimetric analysis (TGA).

Main Results:

Successful synthesis of alginate-based polyurethanes confirmed by FTIR and (1)H NMR.
TGA data corroborated FTIR and (1)H NMR findings.
Ionic nature of the polyurethane backbone influenced thermal properties and alginate morphology.
Non-ionic polyurethanes showed distinct alginate phases, while ionomers formed continuous alginate systems at the nanoscale.

Conclusions:

The study presents the first successful synthesis of soluble alginate-based polyurethanes.
The incorporation of alginate significantly impacts the material's thermal properties and nanoscale morphology.
These findings open avenues for developing new alginate-functionalized polymers for advanced applications.