Facile fabrication of Sudan red particle microcapsules by a polymerizable gemini surfactant and molecular assembly mechanisms
文献类型：期刊论文
| 作者 | Wu, Yaqian1,2; Yan, Haike1; Shi, Xuefeng1; Wang, Jinben1 |
| 刊名 | SOFT MATTER
 |
| 出版日期 | 2017 |
| 卷号 | 13期号:9页码:1881-1887 |
| 英文摘要 | An efficient method was developed to encapsulate water insoluble organic particles of Sudan red III (SR) in aqueous suspensions by using a polymerizable cationic gemini surfactant, 1,3-bis(N, N-dimethyl-Ncetylammonium)-2-(propylacrylate-dibromide) (AGC(16)). The AGC(16) coated SR microcapsules (AGC(16)@SR) were prepared by absorption of AGC(16) on the surface of SR, followed by in situ homopolymerization (PAGC(16)). Several measurements, including transmission and scanning electron microscopy, isothermal titration calorimetry, zeta potential, electron paramagnetic resonance and small angle X-ray scattering, were performed to determine the adsorption amount of AGC(16), and the layer structures and the molecular assembly mechanism in the AGC(16)@SR and PAGC(16)@SR systems, respectively. For comparison purposes, the polymerizable cationic surfactant with one head group and a single alkyl chain, acryloyloxyethyl-N, N-dimethyl-N-cetylammonium bromide (referred to as ASC(16)), as well as the systems of ASC(16)@SR and PASC(16)@SR were also investigated in parallel. It was found that AGC(16) molecules and their aggregates were simultaneously assembled into a shell layer, in which the saturated adsorption amount of AGC(16) on SR is less than 1/2 that of ASC(16), but the assembly layer of AGC(16) is more hydrophobic with greater packing tightness compared with that of ASC(16). It was also revealed that after in situ homopolymerization, the microcapsule shell becomes more compact. In the case of PAGC(16)@SR, the layers show higher surface roughness and irregularity compared with that of PASC(16)@SR. Moreover, the sustained release behavior of SR was also evaluated. The results revealed that PAGC(16)@SR performed well for SR controlled release, which was sorted by release performance as the following sequence: PAGC(16)@SR > AGC(16)@SR > PASC(16)@SR > ASC(16)@SR. Thus, the polymerizable cationic gemini surfactant holds substantial potential to be developed as an ideal candidate of soft matter to construct efficient controllable release systems. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38159]  |
| 专题 | 化学研究所_胶体、界面与化学热力学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yaqian,Yan, Haike,Shi, Xuefeng,et al. Facile fabrication of Sudan red particle microcapsules by a polymerizable gemini surfactant and molecular assembly mechanisms[J]. SOFT MATTER,2017,13(9):1881-1887. |
| APA | Wu, Yaqian,Yan, Haike,Shi, Xuefeng,&Wang, Jinben.(2017).Facile fabrication of Sudan red particle microcapsules by a polymerizable gemini surfactant and molecular assembly mechanisms.SOFT MATTER,13(9),1881-1887. |
| MLA | Wu, Yaqian,et al."Facile fabrication of Sudan red particle microcapsules by a polymerizable gemini surfactant and molecular assembly mechanisms".SOFT MATTER 13.9(2017):1881-1887. |
入库方式： OAI收割
来源：化学研究所
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