Synthesis and characterization of novel soybean-oil-based elastomers with favorable processability and tunable properties
Synthesis and characterization of novel soybean-oil-based elastomers with favorable processability and tunable properties
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DOI：
10.1021/ma301938a
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发表时间：
2012-11
期刊：
影响因子：
5.5
通讯作者：
Zhao Wang;Xing Zhang;Runguo Wang;Hailan Kang;Bo Qiao;Jun Ma;Liqun Zhang;Hao Wang
中科院分区：
文献类型：
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作者：
Zhao Wang;Xing Zhang;Runguo Wang;Hailan Kang;Bo Qiao;Jun Ma;Liqun Zhang;Hao Wang
以环氧大豆油（ESO）和十亚甲基二胺（DDA）为原料，采用不同摩尔比的开环聚合法制备了聚环氧大豆油-共十亚甲基二胺（PESD）新型豆油基弹性体。通过各种方法鉴定了摩尔比对PESD结构和性能的影响。傅里叶变换红外光谱（FTIR）、核磁共振（1H NMR）和热重（TGA）分析结果表明，在聚合过程中，ESO的甘油中心被氨解破坏，得到非交联弹性体，玻璃化转变温度（Tg）较低，范围为- 30 ~ - 17℃。psd -3 （DDA与ESO的摩尔比为2:1）分子量最高，最适合进一步加工。然后，采用一般橡胶加工方法，通过丁二酸酐成功交联PESD-3，得到交联生物弹性体。链式增长的机制，…
A new series of soybean-oil-based elastomers poly(epoxidized soybean oil-co-decamethylene diamine) (PESD) was synthesized by ring-opening polymerization from epoxidized soybean oil (ESO) and decamethylene diamine (DDA) in different molar ratios. The effect of the molar ratio on the structure and properties of PESD was identified by various methods. According to the results of Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (1H NMR) and thermogravimetry (TGA), the glycerol center of ESO was broken by ammonolysis as expected in the process of polymerization, which resulted in un-cross-linked elastomers with low glass transition temperatures (Tg) ranging from −30 to −17 °C. PESD-3 (molar ratio of DDA to ESO is 2:1) was found to have the highest molecular weight and was most suitable for further processing. Then, PESD-3 was successfully cross-linked through succinic anhydride by a general rubber processing method to obtain a cross-linked bioelastomer. The mechanism of chain growth, ...