Copolymerization of palm oil with sulfur using inverse vulcanization to boost the palm oil industry
Copolymerization of palm oil with sulfur using inverse vulcanization to boost the palm oil industry
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DOI：
10.1177/09673911211054269
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发表时间：
2021-12-06
影响因子：
2.1
通讯作者：
Ghumman, Ali Shaan Manzoor
中科院分区：
文献类型：
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作者：
Abbasi, Amin;Yahya, Wan Zaireen Nisa;Ghumman, Ali Shaan Manzoor
如今，世界上大部分棕榈油是在马来西亚和印度尼西亚生产的；然而，许多国家对这种植物油作为食用油的需求正在下降，因为过量食用棕榈油会导致严重的健康问题。因此，似乎有必要寻找新的应用，例如利用这种廉价且丰富的植物油生产生物基聚合物。在此，我们报道了棕榈油与硫在不同投料比下通过反相硫化进行共聚。然后使用傅里叶变换红外光谱、差示扫描量热法和 X 射线衍射分析对共聚物进行表征。结果证实了聚合物的形成及其对解聚的稳定性。总而言之，所获得的硫-棕榈油共聚物表现出优异的性能，例如在氮气气氛下高达230℃的热稳定性和在室温下的橡胶性能。虽然热重分析 (TGA) 热分析图之前通过比较聚合物中的初始硫含量和最终多硫化物含量证实了元素硫向聚合结构的高转化率，但在最终产品中也观察到了一些未反应的元素硫。硫棕榈油（S-棕榈油）是一种新型绿色聚合物，有助于为棕榈油作为一个大工业以及未充分利用并作为天然气和石油精炼厂副产品储存的硫找到新用途。
Nowadays, most of the world's palm oil is being produced in Malaysia and Indonesia; however, the demand for this vegetable oil as an edible oil is declining in many countries since consuming palm oil in excess can result in serious health problems. Consequently, finding new applications such as the production of bio-based polymers to make use of this cheap and abundant vegetable oil seems necessary. Herein, we report the copolymerization of palm oil with sulfur with different feed ratios via inverse vulcanization. The copolymers are then characterized using Fourier-transform infrared spectroscopy, differential scanning calorimetry and X-ray diffraction analysis. The results confirmed the formation of the polymers and their stability against depolymerization. Altogether, the obtained sulfur-palm oil copolymers showed great properties such as thermal stability up to 230 degrees C under a nitrogen atmosphere and rubbery properties at room temperature. Although the Thermogravimetric analysis (TGA) thermograms had previously confirmed the high conversion of elemental sulfur into the polymeric structure by comparing the initial sulfur content and the final polysulfide content in the polymer, some unreacted elemental sulfur was also observed in the final product. Sulfur-palm oil (S-Palm oil) is a new green polymer that helps to find a new use for palm oil as a big industry as well as sulfur which is underutilized and left in stockpile as a byproduct in gas and petroleum refineries.