Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance,European Journal of Lipid Science and Technology

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Bio‐Based Polymers Obtained from Modified Fatty Acids and Soybean Oil with Tailorable Physical and Mechanical Performance
European Journal of Lipid Science and Technology ( IF 1.8 ) Pub Date : 2020-08-08 , DOI: 10.1002/ejlt.202000182
Emanuel Hernández ₁ , Mirna. A. Mosiewicki ₁ , Norma. E. Marcovich _{1,

2}

Affiliation

The impending world oil shortage, global climate changes, and environmental pollution encourage the use of natural renewable resources to produce substitutes for petroleum‐derived polymers. In this work, two series of bio‐based thermoset polymers are prepared by free radical polymerization of commercially available acrylated epoxidized soybean oil (AESO) with different amounts of methacrylated oleic (MOA) or lauric (MLA) acids. The characterization of the resulting cured bio‐based copolymers is performed by infrared spectroscopy, dynamic mechanical analysis, thermogravimetric analysis, and tensile tests. Experimental results show that heat resistance index, storage modulus, and crosslinking density increase as the content of AESO in the samples increases, whereas the corresponding glass transition temperatures (T_g) decrease slightly. Samples containing MLA present higher tensile modulus and strength than polymers made from MOA or 100% AESO. All materials are insoluble in water and common organic solvents, show high transparency and water contact angles among 67° and 86.3°, and at least some of the samples demonstrate stress relaxation capacity.

中文翻译：

从改性脂肪酸和豆油获得的生物基聚合物，具有可定制的物理和机械性能

即将来临的世界石油短缺，全球气候变化和环境污染，促使人们使用天然可再生资源来生产石油衍生的聚合物的替代品。在这项工作中，通过将市售的丙烯酸酯化的环氧化大豆油（AESO）与不同量的甲基丙烯酸化的油酸（MOA）或月桂酸（MLA）进行自由基聚合，制备了两种生物基热固性聚合物。通过红外光谱，动态力学分析，热重分析和拉伸试验对所得固化的生物基共聚物进行表征。实验结果表明，随着样品中AESO含量的增加，耐热指数，储能模量和交联密度增加，而相应的玻璃化转变温度（T_g）略有减少。含有MLA的样品比由MOA或100％AESO制成的聚合物具有更高的拉伸模量和强度。所有材料均不溶于水和常见的有机溶剂，显示出高透明度，并且水接触角介于67°和86.3°之间，并且至少某些样品显示出应力松弛能力。

更新日期：2020-10-05

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