Trimethylsilyl hedgehogs - a novel class of super-efficient hydrocarbon surfactants
Trimethylsilyl hedgehogs - a novel class of super-efficient hydrocarbon surfactants
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DOI：
10.1039/c7cp02570j
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发表时间：
2017-09-21
影响因子：
3.3
通讯作者：
Eastoe, Julian
中科院分区：
文献类型：
--
作者：
Czajka, Adam;Hill, Christopher;Eastoe, Julian
这里提出的是一类新的烃类表面活性剂，称为三甲基硅刺猬（TMS-刺猬），由于硅的存在下，在尾巴的结果。通过比较这些混合刺猬的表面性质，纯烃等价物，性能和结构之间的联系。也就是说，通过控制表面活性剂片段的分子体积，可以在表面覆盖度方面进行改进，产生较低的表面能单层。小角中子散射（SANS）数据已被收集表明，这些新的表面活性剂聚集形成椭圆形胶束，随着浓度的增加而增长。这项研究突出了表面张力和表面活性剂链之间的敏感关系，用于设计接近最低表面张力极限的新型超高效表面活性剂。
Presented here are the results for a novel class of hydrocarbon surfactants, termed trimethylsilyl hedgehogs (TMS-hedgehogs), due to the presence of silicon in the tails. By comparing the surface properties of these hybrid hedgehogs to purely hydrocarbon equivalents, links between performance and the structure are made. Namely, by controlling the molecular volume of the surfactant fragments, improvements can be made in surface coverage, generating lower surface energy monolayers. Small-angle neutron scattering (SANS) data have been collected showing that these novel surfactants aggregate to form ellipsoidal micelles which grow with increasing concentration. This study highlights the sensitive relationship between surface tension and the surfactant chain, for designing new super-efficient surfactants close to the limit of the lowest surface tensions possible.