Soy-polyol has been synthesized via a low energy two-step continuous route thus avoiding intermediate steps and chemicals. The functional groups of soy-polyol thus produced were identified by Fourier transform infrared (FTIR) spectroscopy which confirmed the cleavage of the double bonds, the formation of new epoxy linkages and the presence of hydroxyl groups. The change in chemical structure and physical properties of the soy polyol was further characterized and the results indicated a successful conversion with reduced unsaturation, increased hydroxyl number and increased viscosity. Polyurethane foam was prepared from soy-polyol using isocyanate and thermogravimetric analysis was used to study its thermal decomposition behaviour. Multiple transitions were identified in relation to depolymerization and bond dissociation. Density and compressive strength of the soy-foam were found to be satisfactory. An investigation of microstructure of soy foam by scanning electron microscope and X-ray computed tomography revealed the internal cell morphology and cell structure.
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Chuayjuljit S, Sangpakdee T, Saravari O (2007) J Met Mater Miner 17(1):17–23
Guo A, Javni I, Petrovic Z (1999) ACS PMSE Preprints 80:503
Chian KS, Gan LH (1998) J Appl Polym Sci 68:509
Dahlke B, Poltrock R, Larbig H, Scherzer HD (1998) J Cell Plast 34:361
Hoefer R, Daute P, Grutzmacher R, Westfechtel A (1997) J Coat Technol 69:65
Reed D (1997) Urethane Technol 14:20
Baser SA, Khakhar DV (1993) Cell Polym 12:390
Saggese EJ, Bilyk A, Artymyshyn B, Zubillaga M (1980) J Cell Plast 16:102
Lyon CK, Garrett VH, Frankel EN (1974) J Am Oil Chem Soc 51:331
Szycher M (1999) Szycher’s handbook of polyurethanes. CRC Press, Boca Raton
ASTM (1997) In: Annual book of standards. ASTM, West Conshohocken, PA, Method D1959-97
AOCS (1997) Hydroxyl value of epoxidized oils, official methods and recommended practices of the AOCS, 5th edn. AOCS Press, Champaign, Official Method Tx 1a-6
Doi M, Edwards SF (1992) The theory of polymer dynamics, vol 73. Oxford University Press, New York
Guo A, Cho Y, Petrovic ZS (2000) J Polym Sci A Polym Chem 38:3900
John J, Bhattacharya M, Turner RB (2002) J Appl Polym Sci 86:3097–3107
Pielichowski K, Kulesza K, Pearce EM (2003) J Appl Polym Sci 88:2319–2330
Ravey M, Pearce EM (1997) J Appl Polym Sci 63:47–74
Bakirova IN, Vluev VI, Demchenko IG, Zenitova LA (2002) J Polym Sci A 44(6):615–622
Molero C, de Lucas A, Rodríguez JF (2008) Polym Degrad Stab 93:353–361
Banik I, Sain M (2008) J Reinf Plast Comp 27(4):357–373
Banik I, Sain M (2008) J Reinf Plast Comp 27:1515–1524
The authors acknowledge Dr. I. Banik, S. Ghosh Roy, and V. Mavisakalyan from the Faculty of Forestry at the University of Toronto for their help. They also acknowledge Arkema Canada Inc., BioCar® and Natural Sciences and Engineering Research Council of Canada for supporting the project.
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Bandyopadhyay-Ghosh, S., Ghosh, S.B. & Sain, M. Synthesis of Soy-Polyol by Two Step Continuous Route and Development of Soy-Based Polyurethane Foam. J Polym Environ 18, 437–442 (2010). https://doi.org/10.1007/s10924-010-0186-z
- Soybean oil
- Polyurethane foam