A novel class of bio-lubricants are synthesized by epoxidation of 10-undecylenic acid-based esters

IF 1 4区农林科学 Q4 CHEMISTRY, APPLIED

Grasas y Aceites Pub Date : 2022-06-22 DOI:10.3989/gya.0103211

B. Lakkoju, V. Vemulapalli

引用次数: 1

Abstract

Mineral-based lubricants are being supplanted by bio-based lubricants because of environmental concerns and the depletion of fossil resources. The derivatives of edible and non-edible oils are considered potential alternatives to existing natural mineral oil base stocks in certain lubricant applications, where immediate intraction with the environment is predicted. A new class of epoxides were synthesized from the undecylenic esters of 2-ethyl hexanol, neopentyl glycol (NPG), and trimethylolpropane (TMP). These unsaturated esters were epoxidized by using meta chloro perbenzoic acid. The synthesized epoxides were characterized by spectral studies (1HNMR, 13CNMR, IR) physio-chemical (density, specific gravity) and lubricant properties (kinematic viscosity, viscosity index, flash point, fire point, cloud point, pour point, copper strip corrosion). TMP epoxide has a high viscosity index, high flash point, and low pour point compared to 2-ethyl hexyl epoxide and NPG epoxide.

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以10-十一烯酸酯为基础，通过环氧化反应合成了一类新型的生物润滑油

由于环境问题和化石资源的枯竭，矿物基润滑剂正在被生物基润滑剂所取代。食用油和非食用油的衍生物被认为是在某些润滑剂应用中现有天然矿物油基础油的潜在替代品，在这些应用中，预计会与环境直接相互作用。以2-乙基己醇十一烯酯、新戊二醇(NPG)和三甲基丙烷(TMP)为原料合成了一类新的环氧化合物。用邻氯过苯甲酸对这些不饱和酯进行了环氧化。通过光谱(1HNMR、13CNMR、IR)、理化(密度、比重)和润滑性能(运动粘度、粘度指数、闪点、燃点、浊点、倾点、铜带腐蚀)对合成的环氧化物进行表征。与2-乙基己基环氧化物和NPG环氧化物相比，TMP环氧化物具有高粘度指数、高闪点和低倾点的特点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Grasas y Aceites 工程技术-食品科技

CiteScore

2.50

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Grasas y Aceites is a peer-reviewed journal devoted to the publication of original articles concerning the broad field of lipids, especially edible fats and oils from different origins, including non acyl lipids from microbial origin relevant to the food industry. It publishes full research articles, research notes, reviews as well as information on references, patents, and books. Grasas y Aceites publishes original articles on basic or practical research, as well as review articles on lipid related topics in food science and technology, biology, (bio)chemistry, medical science, nutrition, (bio)technology, processing and engineering. Topics at the interface of basic research and applications are encouraged. Manuscripts related to by-products from the oil industry and the handling and treatment of the wastewaters are also welcomed. Topics of special interest to Grasas y Aceites are: -Lipid analysis, including sensory analysis -Oleochemistry, including lipase modified lipids -Biochemistry and molecular biology of lipids, including genetically modified oil crops and micro-organisms -Lipids in health and disease, including functional foods and clinical studies -Technical aspects of oil extraction and refining -Processing and storage of oleaginous fruit, especially olive pickling -Agricultural practices in oil crops, when affecting oil yield or quality