Effect of sodium chloride on association behavior of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solutions
文献类型：期刊论文
| 作者 | Su, YL; Wei, XF; Liu, HZ |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2003-08-15 |
| 卷号 | 264期号:2页码:526-531 |
| 关键词 | PEO-PPO-PEO block copolymer sodium chloride fluorescence spectroscopy micellization thermodynamics |
| ISSN号 | 0021-9797 |
| 其他题名 | J. Colloid Interface Sci. |
| 中文摘要 | The effect of sodium chloride (NaCl) upon the thermally induced association behavior of poly(ethylene oxide)-poly(propylene oxide)poly(ethylene oxide) (PEO-PPO-PEO) block copolymer, Pluronic P103, has been investigated using pyrene fluorescence spectroscopy. The critical micellization temperature (CMT) of Pluronic P103 in aqueous solution is decreased by the addition of NaCl. The standard enthalpy and entropy of micellization for Pluronic P103 in water are increased in the presence of small amounts of NaCl, but further addition of NaCl decreases the standard enthalpy and entropy of micellization. The I-1 / I-3 ratio of pyrene in aqueous Pluronic P103 solutions at temperature below the CMT decreases with increases of NaCl concentration, which is related to the decrease of PPO solubility. The decrease in polarity of the PPO shifts the CMT toward lower temperature. (C) 2003 Elsevier Inc. All rights reserved. |
| 英文摘要 | The effect of sodium chloride (NaCl) upon the thermally induced association behavior of poly(ethylene oxide)-poly(propylene oxide)poly(ethylene oxide) (PEO-PPO-PEO) block copolymer, Pluronic P103, has been investigated using pyrene fluorescence spectroscopy. The critical micellization temperature (CMT) of Pluronic P103 in aqueous solution is decreased by the addition of NaCl. The standard enthalpy and entropy of micellization for Pluronic P103 in water are increased in the presence of small amounts of NaCl, but further addition of NaCl decreases the standard enthalpy and entropy of micellization. The I-1 / I-3 ratio of pyrene in aqueous Pluronic P103 solutions at temperature below the CMT decreases with increases of NaCl concentration, which is related to the decrease of PPO solubility. The decrease in polarity of the PPO shifts the CMT toward lower temperature. (C) 2003 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] | ANGLE NEUTRON-SCATTERING ; DIFFERENTIAL SCANNING CALORIMETRY ; TRIBLOCK COPOLYMER ; MICELLAR STRUCTURE ; FTIR SPECTROSCOPY ; AGGREGATION BEHAVIOR ; FLUORESCENCE PROBE ; POTASSIUM FLUORIDE ; PROPYLENE-OXIDE ; ETHYLENE-OXIDE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000184940400030 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5280]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Young Scientist Lab Separat Sci & Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, YL,Wei, XF,Liu, HZ. Effect of sodium chloride on association behavior of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solutions[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2003,264(2):526-531. |
| APA | Su, YL,Wei, XF,&Liu, HZ.(2003).Effect of sodium chloride on association behavior of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solutions.JOURNAL OF COLLOID AND INTERFACE SCIENCE,264(2),526-531. |
| MLA | Su, YL,et al."Effect of sodium chloride on association behavior of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solutions".JOURNAL OF COLLOID AND INTERFACE SCIENCE 264.2(2003):526-531. |
入库方式： OAI收割
来源：过程工程研究所
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