Copolymers by Inverse Vulcanization of Sulfur with Pure or Technical‐Grade Unsaturated Fatty Acids
Copolymers by Inverse Vulcanization of Sulfur with Pure or Technical‐Grade Unsaturated Fatty Acids
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DOI：
10.1002/pol.20190138
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发表时间：
2020-02
影响因子：
3.4
通讯作者：
Ashlyn D. Smith;C. McMillen;Rhett C. Smith;Andrew G. Tennyson
中科院分区：
文献类型：
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作者：
Ashlyn D. Smith;C. McMillen;Rhett C. Smith;Andrew G. Tennyson
开发可持续工业过程的努力已经导致了替代依赖石化技术的重大进展。其中一些其他可持续的过程，特别是动物产品提炼和生物柴油生产，产生游离脂肪酸含量高的低价值废物。硫又是化石燃料精炼的主要废物。在目前的贡献中，共聚物是通过元素硫与脂肪酸以几种单体比例反应制备的。评价单不饱和油酸和双（不饱和）亚油酸以评估共聚物性质与脂肪酸共聚单体的不饱和度相关的程度。此外，将由工业级与纯亚油酸制备的共聚物进行比较，以评估更经济实惠的工业级单体的可行性。通过热重分析、差示扫描量热法和动态力学分析对共聚物的热性能和力学性能进行了评价。© 2020威利期刊公司J.波利姆Sci.2020，58，438-445
Efforts to develop sustainable industrial processes have led to significant advances toward supplanting petrochemical‐dependent technologies. Some of these otherwise sustainable processes, notably animal product rendering and biodiesel production, produce low value waste that is high in free fatty acids. Sulfur in turn is a primary waste product of fossil fuel refining. In the current contribution, copolymers are prepared by reaction of elemental sulfur with fatty acids in several monomer ratios. Both monounsaturated oleic acid and bis(unsaturated) linoleic acid were evaluated to assess the extent to which copolymer properties relate to the degree of unsaturation of the fatty acid comonomer. Furthermore, copolymers prepared from technical grade versus pure linoleic acid were compared to evaluate the viability of the considerably more affordable technical grade monomer. The thermal and mechanical properties of the copolymers were assessed by thermogravimetric analysis, differential scanning calorimetry and dynamic mechanical analysis. © 2020 Wiley Periodicals, Inc. J. Polym. Sci.2020,58, 438–445