Acetylaniline modified hypercrosslinked polystyrene resins and their equilibria and kinetics towards glabridin from Glycyrrhiza glabra L. extracts | |
Li XT(李晓婷)1,2; Liu Y(刘毅)1,3; Liu YF(刘永峰)1,3; Di DL(邸多隆)1,3; Di DL(邸多隆) | |
刊名 | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
2016 | |
卷号 | 509页码:484-491 |
关键词 | Hypercrosslinked resin Glabridin Adsorption Equilibrium Kinetics |
ISSN号 | 0927-7757 |
通讯作者 | 邸多隆 |
英文摘要 | As reported in our previous work, crosslinked polymeric adsorbents with high microporous surface areas are proper for glabridin adsorption. In addition, adsorption capacity of the microporous and mesoporous self-crosslinked polystyrene resin XT2-10 was superior to that of the optimal commercial adsorbent BMKB-1 under the same conditions. However, there is still room for further improvement. Based on this, in the following study, a series of novel hypercrosslinked polymeric adsorbents modified with acetylaniline as the cross-linked bridge (labeled as XT8-0, XT8-4, XT8-6, XT8-8 and XT8-10) were synthesized from macroporous crosslinked chloromethylated polystyrene by adding different quantity of acetylaniline in the Friedel–Crafts reaction. The microporous surface areas of hypercrosslinked polymeric resins XT8 occupied more than 55% of the total BET surface areas and these resins were evaluated for adsorption of glabridin. Among the synthesized five resins, XT8-8 possessed the largest adsorption capacity toward glabridin, and it was superior to the previous synthesized self-crosslinked polystyrene resin XT2-10 and much better than the optimal commercial resin BMKB-1. The isotherms could be fitted by Freundlich model and the adsorption was shown to be an exothermic process. The kinetic curves could be characterized by pseudo-second-order rate equation and the adsorption rate of glabridin on XT8-8 was controlled by both intraparticle diffusion and external diffusion. The enthalpy ΔH, Gibb’s free energy ΔG and entropy ΔS were calculated to be negative. The reusability of the modified resins was also assessed and the modified resins exhibited considerable reusability. The remarkable adsorption behaviors of XT8-8 were due to its suitable structural design and modification. The hypercrosslinked resins being developed were promising alternatives to commercial adsorbents for adsorbing glabridin and other flavones from herbal plants. |
学科主题 | 分析化学与药物化学 |
收录类别 | SCI |
资助信息 | the National Natural Sciences Foundation of China (NSFC No. 20974116;21374128;21544013);the “Hundred Talents Program” of the Chinese Academy of Sciences (CAS);the National High Technology Research and Development Program of China (863 No. 2014AA022203) |
语种 | 英语 |
WOS记录号 | WOS:000385472000058 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20971] |
专题 | 兰州化学物理研究所_中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室 |
通讯作者 | Di DL(邸多隆) |
作者单位 | 1.Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, 18 Tianshui Middle Road, Lanzhou 730000, People’s Republic of China 2.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, People’s Republic of China 3.Centre of Resource Chemical and New Material, 36 Jinshui Road, Qingdao 266100, People’s Republic of China |
推荐引用方式 GB/T 7714 | Li XT,Liu Y,Liu YF,et al. Acetylaniline modified hypercrosslinked polystyrene resins and their equilibria and kinetics towards glabridin from Glycyrrhiza glabra L. extracts[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2016,509:484-491. |
APA | Li XT,Liu Y,Liu YF,Di DL,&邸多隆.(2016).Acetylaniline modified hypercrosslinked polystyrene resins and their equilibria and kinetics towards glabridin from Glycyrrhiza glabra L. extracts.Colloids and Surfaces A: Physicochemical and Engineering Aspects,509,484-491. |
MLA | Li XT,et al."Acetylaniline modified hypercrosslinked polystyrene resins and their equilibria and kinetics towards glabridin from Glycyrrhiza glabra L. extracts".Colloids and Surfaces A: Physicochemical and Engineering Aspects 509(2016):484-491. |
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