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Thermal stability and water vapor sorption of wheat starch modified with isocyanate functional groups
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för skog och träteknik (SOT). Linnaeus University. (Group of Forest Products (GoFP))ORCID-id: 0000-0003-0883-2306
Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för skog och träteknik (SOT). (Group of Forest Products (GoFP))ORCID-id: 0000-0002-6909-2025
University of the Basque Country UPV/EHU, Spain.
2019 (engelsk)Inngår i: 7th International Conference on Biobased and Biodegradable Polymers (BIOPOL), 17-19th June 2019, Stockholm, Sweden, KTH , 2019Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Wheat starch polymer was modified through the unequal reactivity of isocyanate groups in isophorone diisocyanate (IPDI) monomer. Fourier transform infrared spectroscopy (FTIR) and 13C nuclear magnetic resonance (13C NMR) confirmed the presence of both urethane and isocyanate functionalities in the modified polymer. Thermal stability and water vapor sorption properties of the modified polymer were evaluated by means of thermogravimetric analysis (TGA) and auto-dynamic vapor sorption (AVS) method, respectively. The results indicated that the modified starch polymer showed a better thermal stability (e.g. higher temperature at maximum weight loss) compared to the unmodified one. Water vapor sorption of starch polymer was considerably reduced after modification with IPDI monomer.

sted, utgiver, år, opplag, sider
KTH , 2019.
HSV kategori
Forskningsprogram
Teknik, Skog och träteknik
Identifikatorer
URN: urn:nbn:se:lnu:diva-85788OAI: oai:DiVA.org:lnu-85788DiVA, id: diva2:1329306
Konferanse
7th International Conference on Biobased and Biodegradable Polymers (BIOPOL), 17-19th June 2019, Stockholm, Sweden
Prosjekter
Lantmännen projectTilgjengelig fra: 2019-06-24 Laget: 2019-06-24 Sist oppdatert: 2019-08-28bibliografisk kontrollert

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