Concentration, temperature, and salt-induced micellization of a triblock copolymer Pluronic L64 in aqueous media
文献类型：期刊论文
| 作者 | Mata, JP; Majhi, PR; Guo, C; Liu, HZ; Bahadur, P |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2005-12-15 |
| 卷号 | 292期号:2页码:548-556 |
| 关键词 | Pluronics cloud points inter-micellar |
| ISSN号 | 0021-9797 |
| 英文摘要 | The effect of copolymer concentration, temperature, and sodium halides (NaI, NaBr, NaCl, and NaF) on micellization and micellar properties of a poly(ethylene oxide)-block-polypropylene oxide)-block-poly (ethylene oxide) (PEO-PPO-PEO) amphiphilic copolymer (Pluronic L64: EO13PO30EO13), was examined by different methods such as dye spectral change, Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), small angle neutron scattering (SANS), dynamic light scattering (DLS), viscosity, and cloud point (CP). Temperature/polymer concentration/salt dependent aggregation behavior of L64 was observed. The data on critical micelle concentration (CMC), critical micelle temperature (CMT), (CP), micelle size, and shape are reported. The Fourier transform infrared (FTIR) showed temperature dependent changes in C-O-C stretching variation band towards higher wave numbers and broadening of band width during the micellization process; this was attributed to increase in proportion of the anhydrous methyl groups, while the proportion of the hydrated methyl groups was decreased. Differential scanning calorimetry (DSC) provides CMTs and CPs from the same experiment. CMC values derived from dye spectral change, decrease significantly with the addition of salt. The increases in salt/copolymer concentration lower the onset temperature of micellization (CMT). Halide anions influence both CMT and CP in the order of F- > Cl- > Br- > I- when total salt and copolymer concentration kept constant. SANS results show the increase of inter-micellar interaction due to the increase in temperature/salt concentration; this is supported by viscosity data. (c) 2005 Elsevier Inc. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | DIFFERENTIAL SCANNING CALORIMETRY ; OXIDE) BLOCK-COPOLYMER ; POLYETHYLENE OXIDE ; CLOUD POINT ; L64 ; AGGREGATION ; MICELLES ; BEHAVIOR ; ASSOCIATION ; SURFACTANTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233534900031 |
| 公开日期 | 2013-09-20 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/1602]  |
| 专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
| 作者单位 | 1.Veer Narmad S Gujarat Univ, Dept Chem, Surat 395007, India 2.Univ Calif San Francisco, Dept Pharmaceut Chem, Sch Pharm, San Francisco, CA 94143 USA 3.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mata, JP,Majhi, PR,Guo, C,et al. Concentration, temperature, and salt-induced micellization of a triblock copolymer Pluronic L64 in aqueous media[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2005,292(2):548-556. |
| APA | Mata, JP,Majhi, PR,Guo, C,Liu, HZ,&Bahadur, P.(2005).Concentration, temperature, and salt-induced micellization of a triblock copolymer Pluronic L64 in aqueous media.JOURNAL OF COLLOID AND INTERFACE SCIENCE,292(2),548-556. |
| MLA | Mata, JP,et al."Concentration, temperature, and salt-induced micellization of a triblock copolymer Pluronic L64 in aqueous media".JOURNAL OF COLLOID AND INTERFACE SCIENCE 292.2(2005):548-556. |
入库方式： OAI收割
来源：过程工程研究所
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