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首页> 外文期刊>Journal of Applied Polymer Science >The role of radical polymerization in the production of thermoregulating microcapsules or polymers from saturated and unsaturated fatty acids
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The role of radical polymerization in the production of thermoregulating microcapsules or polymers from saturated and unsaturated fatty acids

机译：自由基聚合在饱和和不饱和脂肪酸的热胶囊或聚合物生产中的作用

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The microencapsulation of linoleic (LinA), oleic, erucic, and palmitic acids (PAs) from styrene and divinylbenzene were studied by using the suspension-like polymerization technique. All materials exhibited a spherical shape, with a particle size between 166 and 416 mu m. The phase change material (PCM) content decreased with the presence of double bonds in the fatty acid molecule. The thermal energy storage (TES) capacity of the microcapsules (MC) containing saturated PA was the highest (123.30 J g(-1)). Whereas, the lowest TES capacity was observed for the LinA. TES capacity values from unsaturated fatty acid materials and the high particle yield indicated that these kinds of acids played two different roles, as PCM and also as monomers, in the radical polymerization processes. At high initiator concentrations, the unsaturated fatty acids were observed to react. This was confirmed by Fourier transform infrared where the peak assigned to the C=C bond disappears in the spectrum of MC. (C) 2017 Wiley Periodicals, Inc.
机译：通过使用悬浮式聚合技术研究来自苯乙烯和二乙烯基苯的亚油（LINA），油酸，芥子和棕榈酸（PAS）的微胶囊化。所有材料都表现出球形形状，粒径为166至416μm。相变材料（PCM）含量随脂肪酸分子中的双键的存在而降低。含有饱和PA的微胶囊（MC）的热能存储（MC）最高（123.30Jg（-1））。虽然，对于LINA观察到最低的TES容量。从不饱和脂肪酸材料和高颗粒产率的TES容量值表明，在自由基聚合方法中，这些种类的酸和PCM和作为单体一起发挥了两种不同的作用。在高引发剂浓度下，观察不饱和脂肪酸反应。这是通过傅里叶变换红外线确认，其中分配给C = C键的峰值在MC的频谱中消失。 （c）2017 Wiley期刊，Inc。

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