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Bio-based Polyurethane Derived from Carbon Dioxide and Epoxidized Soybean Oil |
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| รหัสดีโอไอ | |
| Creator | Naruebhorn Piyataksanon |
| Title | Bio-based Polyurethane Derived from Carbon Dioxide and Epoxidized Soybean Oil |
| Contributor | Manus Seadan, Supakij Suttiruengwong |
| Publisher | Faculty of Science and Technology, Suan Sunandha Rajabhat University |
| Publication Year | 2565 |
| Journal Title | Suan Sunandha Science and Technology Journal |
| Journal Vol. | 9 |
| Journal No. | 2 |
| Page no. | 8 to 14 |
| Keyword | Non-isocyanate polyurethanes, Bio-based polyurethane, Epoxidized soybean oil, Bioadhesives |
| URL Website | http://www.ssstj.sci.ssru.ac.th/ |
| Website title | Suan Sunandha Science and Technology Journal (SSSTJ) |
| ISSN | 2351-0889 |
| Abstract | The synthesis of polyurethane relies on a toxic and petroleum-based isocyanate reactant. The aim of this researchwas to synthesize Polyurethane using environment-benign and renewable starting materials such as carbon dioxideand soybean oil. The carbonated soybean oil was first prepared from carbon dioxide (CO2) and epoxidized soybeanoil (ESBO) using zinc glutarate (ZnGA) as a catalyst but the result of FTIR indicated the absence of the peak ofcyclic carbonate around 1800 cm-1. Therefore, in this work, the synthesis of Polyurethane was modified from A.Lee (Lee & Deng, 2015) using tetramethylammonium bromide (TBAB) as a catalyst. The as-synthesizedcarbonated soybean oil (CSBO) was allowed to react with two types of substances, 3-aminopropyltriethoxysilaneor diethylenetriamine with the molar ratios of cyclic carbonate:NH2 of 1:1 with THF or DMF as solvents to obtainPolyurethanes (U1THF, U1DMF, U2THF, U2DMF). After 3 hours lignin solution was added to form a film.Raman spectra confirmed the catalyst removal from CSBO. FTIR spectra showed the peak around 1800 cm-1assigned to cyclic carbonate of CSBO, and a new peak of urethane linkage around 1700 cm-1(C=O stretching) ofPolyurethanes. The conversion of epoxide to cyclic carbonate was also confirmed by 1H-NMR. Upon addinglignin into the Polyurethanes, the lignin-urethane U1THF, and U1DMF formed films whereas U2THF, andU2DMF formed viscous liquids. In terms of applications, all four formulations can be potentially applied asbioadhesives. |
