| 11-苄硒基十一羧酸铵盐的双重刺激响应性质 |
| |
| 引用本文： | 秦 飞,刘雪锋.11-苄硒基十一羧酸铵盐的双重刺激响应性质[J].日用化学工业,2018,48(3):123-128. |
| |
| 作者姓名： | 秦 飞 刘雪锋 |
| |
| 作者单位： | 江南大学化学与材料工程学院合成与生物胶体教育部重点实验室; |
| |
| 基金项目： | 国家自然科学基金资助项目(21673103) |
| |
| 摘 要： | 合成了一种对氧化还原(Redox)和CO_2/N_2具有双重刺激响应的表面活性剂11-苄硒基十一羧酸铵盐(BSeUA),分别利用傅里叶红外光谱、核磁共振和电喷雾质谱等手段研究了BSeUA在Redox和CO_2/N_2刺激响应前后的分子结构变化特征。结果表明,在过氧化氢和水合肼交替作用下,BSeUA分子中二价硒醚基团(-Se-)与相应的四价硒亚砜基团(-Se=O)之间可以氧化还原可逆互变,在CO_2和N_2交替作用下,BSeUA分子中羧酸根(-COO-)与相应的羧酸(-COOH)之间可以可逆互变,从而实现BSeUA对Redox和CO_2/N_2具有双重刺激响应。分别在Redox和CO_2/N_2刺激作用下,由BSeUA稳定的乳液可以在破乳和再乳化2种状态下开关可逆循环至少5次,且乳液粒径和稳定性未发生明显变化。
|
| 关 键 词： | 阴离子表面活性剂 乳液 刺激响应 CO2/N2 氧化还原 |
| 收稿时间： | 2017/12/28 0:00:00 |
Dual stimuli-responsive properties of ammonium 11-benzylselanyl undecanoate |
| |
| QIN Fei and LIU Xue-feng.Dual stimuli-responsive properties of ammonium 11-benzylselanyl undecanoate[J].China Surfactant Detergent & Cosmetics,2018,48(3):123-128. |
| |
| Authors: | QIN Fei and LIU Xue-feng |
| |
| Affiliation: | Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China |
| |
| Abstract: | A kind of CO2/N2 and redox dual-stimuli responsive surfactant ammonium 11-benzylselanyl undecanoate (BSeUA) was synthesized. The molecular structure change of BSeUA triggered by redox and CO2/N2 was studied with Fourier Transform Infrared Spectroscopy (FT-IR), Nuclear Magnetic Resonance (NMR) and Electrospray Ionization Mass Spectrometry (ESI-MS). The results show that the selenium-containing group can be reversibly switched between bivalent selenide (-Se-) and tetravalent selenoxide (-Se=O) by alternately adding hydrogen peroxide and hydrazine hydrate, and the CO2-sensitive group can be reversibly switched between carboxylate (-COO-) and carboxylic acid (-COOH) by bubbling CO2 and N2. Thus, the BSeUA-stabilized emulsion can be switched reversibly between de-emulsification and re-emulsification over five times at least. No obvious adverse changes in droplet size and the relative stability of the regenerated emulsions are observed. |
| |
| Keywords: | anionics emulsion stimuli-responsive CO2/N2 redox |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《日用化学工业》浏览原始摘要信息 |
|
点击此处可从《日用化学工业》下载全文 |
|
