Chromatographic assessment of two hybrid monoliths prepared via epoxy-amine ring-opening polymerization and methacrylate-based free radical polymerization using methacrylate epoxy cyclosiloxane as functional monomer
文献类型：期刊论文
| 作者 | Wang, Hongwei1,2,3; Ou, Junjie1; Lin, Hui1,2; Liu, Zhongshan1,2; Huang, Guang1,2,3; Dong, Jing1; Zou, Hanfa1 |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2014-11-07 |
| 卷号 | 1367页码:131-140 |
| 关键词 | Hybrid monoliths Methacrylate epoxy cyclosiloxane Ring-opening polymerization Free radical polymerization Nano-liquid chromatography |
| 英文摘要 | two kinds of hybrid monolithic columns were prepared by using methacrylate epoxy cyclosiloxane (epoxy-ma) as functional monomer, containing three epoxy moieties and one methacrylate group. one column was in situ fabricated by ring-opening polymerization of epoxy-ma and 1,10-diaminodecane (dad) using a porogenic system consisting of isopropanol (ipa), h2o and ethanol at 65 degrees c for 12h. the other was prepared by free radical polymerization of epoxy-ma and ethylene dimethacrylate (edma) using 1-propanol and 1,4-butanediol as the porogenic solvents at 60 degrees c for 12h. two hybrid monoliths were investigated on the morphology and chromatographic assessment. although two kinds of monolithic columns were prepared with epoxy-ma, their morphologies looked rather different. it could be found that the epoxy-ma-dad monolith possessed higher column efficiencies (25,000-34,000 plates/m) for the separation of alkylbenzenes than the epoxy-ma-edma monolith (12,000-13,000 plates/m) in reversed-phase nano-liquid chromatography (nano-lc). depending on the remaining epoxy or methacrylate groups on the surface of two pristine monoliths, the epoxy-ma-edma monolith could be easily modified with 1-octadecylamine (oda) via ring-opening reaction, while the epoxy-ma-dad monolith could be modified with stearyl methacrylate (sma) via free radical reaction. the chromatographic performance for the separation of alkylbenzenes on sma-modified epoxy-ma-dad monolith was remarkably improved (42,000-54,000 plates/m) when compared with that on pristine epoxy-ma-dad monolith, while it was not obviously enhanced on oda-modified epoxy-ma-edma monolith when compared with that on pristine epoxy-ma-edma monolith. the enhancement of the column efficiency of epoxy-ma-dad monolith after modification might be ascribed to the decreased mass-transfer resistence. the two kinds of hybrid monoliths were also applied for separations of six phenols and seven basic compounds in nano-lc. (c) 2014 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 类目[WOS] | biochemical research methods ; chemistry, analytical |
| 研究领域[WOS] | biochemistry & molecular biology ; chemistry |
| 关键词[WOS] | capillary liquid-chromatography ; reversed-phase ; small molecules ; porous materials ; sol-gel ; columns ; separation ; performance ; electrochromatography ; hplc |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000344204100015 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145589]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog R&A Ctr, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Hongwei,Ou, Junjie,Lin, Hui,et al. Chromatographic assessment of two hybrid monoliths prepared via epoxy-amine ring-opening polymerization and methacrylate-based free radical polymerization using methacrylate epoxy cyclosiloxane as functional monomer[J]. journal of chromatography a,2014,1367:131-140. |
| APA | Wang, Hongwei.,Ou, Junjie.,Lin, Hui.,Liu, Zhongshan.,Huang, Guang.,...&Zou, Hanfa.(2014).Chromatographic assessment of two hybrid monoliths prepared via epoxy-amine ring-opening polymerization and methacrylate-based free radical polymerization using methacrylate epoxy cyclosiloxane as functional monomer.journal of chromatography a,1367,131-140. |
| MLA | Wang, Hongwei,et al."Chromatographic assessment of two hybrid monoliths prepared via epoxy-amine ring-opening polymerization and methacrylate-based free radical polymerization using methacrylate epoxy cyclosiloxane as functional monomer".journal of chromatography a 1367(2014):131-140. |
入库方式： OAI收割
来源：大连化学物理研究所
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