Synthesis and Characterization of Novel Soybean-Oil-Based Elastomers with Favorable Processability and Tunable Properties

2012 ◽  
Vol 45 (22) ◽  
pp. 9010-9019 ◽  
Author(s):  
Zhao Wang ◽  
Xing Zhang ◽  
Runguo Wang ◽  
Hailan Kang ◽  
Bo Qiao ◽  
...  
e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 491-499
Author(s):  
Fukai Yang ◽  
Hao Yu ◽  
Yuyuan Deng ◽  
Xinyu Xu

Abstract In this article, five kinds of soybean oil-based polyols (polyol-E, polyol-P, polyol-I, polyol-B, and polyol-M) were prepared by ring-opening the epoxy groups in epoxidized soybean oil (ESO) with ethyl alcohol, 1-pentanol, isoamyl alcohol, p-tert-butylphenol, and 4-methoxyphenol in the presence of tetrafluoroboric acid as the catalyst. The SOPs were characterized by FTIR, 1H NMR, GPC, viscosity, and hydroxyl numbers. Compared with ESO, the retention time of SOPs is shortened, indicating that the molecular weight of SOPs is increased. The structure of different monomers can significantly affect the hydroxyl numbers of SOPs. Due to the large steric hindrance of isoamyl alcohol, p-hydroxyanisole, and p-tert-butylphenol, SOPs prepared by these three monomers often undergo further dehydration to ether reactions, which consumes the hydroxyl of polyols, thus forming dimers and multimers; therefore, the hydroxyl numbers are much lower than polyol-E and polyol-P. The viscosity of polyol-E and polyol-P is much lower than that of polyol-I, polyol-B, and polyol-M. A longer distance between the molecules and the smaller intermolecular force makes the SOPs dehydrate to ether again. This generates dimer or polymers and makes the viscosity of these SOPs larger, and the molecular weight greatly increases.


2018 ◽  
Vol 6 (10) ◽  
pp. 12865-12871 ◽  
Author(s):  
Xuan Qin ◽  
Yong He ◽  
Shafilluah Khan ◽  
Baihui Zhang ◽  
Fanxing Chen ◽  
...  

2011 ◽  
Vol 239-242 ◽  
pp. 1721-1724 ◽  
Author(s):  
Xiao Qing Zheng ◽  
Li Ting Yang ◽  
Kun Peng Wang

Soybean oil-based alkyd resin was prepared using soy-based polyol, maleic anhydride and phthalic anhydride. The soy-based polyol was obtained through the epoxidization of soybean oil, followed by ring-opening with methanol and, the hydroxyl values of soybean oil-based polyols used in this reaction is 169.93 mgKOH/g. In the reactions of soy-based polyol, maleic anhydride and phthalic anhydride, the molar ratio of hydroxyl value is equal to carboxyl value and the molar ratio of maleic anhydride to phthalic anhydride is 2:1, 1:1 and 1:2, respectively. 1% hydroquinone based on total reactants was used as inhibitor of polymerization, 1% dibutyltin oxide was used as catalyst.


1970 ◽  
Vol 1 (1) ◽  
pp. 29-41 ◽  
Author(s):  
Hiew Ming Yu ◽  
Arun Gupta ◽  
Ritu Gupta ◽  
Saad Bala Husain

Soybean oil is one of the major vegetable oils containing more than 99% of triglycerides of saturated and unsaturated fatty acids and has become an interesting source to produce bioplastic. This study investigates the synthesis and characterization of bioplastic developed by the acrylate epoxidized soybean oil through ring opening polymerization process. The mechanical properties of the samples were characterized using Fourier Transform Infrared Spectroscopy, Thermogravimetric analysis and the physio-chemical properties of the bioplastics were studied. In this study, the bioplastic made up from soybean oil with the lowest glycerol concentration showed the best mechanical properties.


2016 ◽  
Vol 4 (12) ◽  
pp. 6551-6561 ◽  
Author(s):  
Satyabrata Samanta ◽  
Sermadurai Selvakumar ◽  
James Bahr ◽  
Dona Suranga Wickramaratne ◽  
Mukund Sibi ◽  
...  

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