Temperature-dependent aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solution
文献类型：期刊论文
| 作者 | Liang, Xiangfeng; Guo, Chen; Ma, Junhe; Wang, Jing; Chen, Shu; Liu, Huizhou |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2007-11-22 |
| 卷号 | 111期号:46页码:13217-13220 |
| 关键词 | oscillatory shear measurements triblock copolymers propylene-oxide ethylene-oxide light-scattering micelle formation nmr relaxation micellization spectroscopy association |
| ISSN号 | 1520-6106 |
| 其他题名 | J. Phys. Chem. B |
| 中文摘要 | Aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) block copolymers, Pluronics P103 and P104, in aqueous solutions during a heating and cooling cycle were investigated by dynamic laser scattering (DLS) and H-1 NMR spectroscopy. Temperature hysteresis was observed by DLS when cooling the copolymer aqueous solutions because larger aggregates existed at temperatures lower than critical micellization temperature (CMT), but no temperature differences were observed by NMR. This phenomenon was explained as the forming of water-swollen micelles at temperatures lower than CMT during the cooling process. |
| 英文摘要 | Aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) block copolymers, Pluronics P103 and P104, in aqueous solutions during a heating and cooling cycle were investigated by dynamic laser scattering (DLS) and H-1 NMR spectroscopy. Temperature hysteresis was observed by DLS when cooling the copolymer aqueous solutions because larger aggregates existed at temperatures lower than critical micellization temperature (CMT), but no temperature differences were observed by NMR. This phenomenon was explained as the forming of water-swollen micelles at temperatures lower than CMT during the cooling process. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | OSCILLATORY SHEAR MEASUREMENTS ; TRIBLOCK COPOLYMERS ; PROPYLENE-OXIDE ; ETHYLENE-OXIDE ; LIGHT-SCATTERING ; MICELLE FORMATION ; NMR RELAXATION ; MICELLIZATION ; SPECTROSCOPY ; ASSOCIATION |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000250967900012 |
| 公开日期 | 2013-10-15 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3383]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | Chinese Acad Sci, Grad Univ, Inst Proc Engn, State Key Lab Biochem Engn,Lab Seperat Sci & Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Xiangfeng,Guo, Chen,Ma, Junhe,et al. Temperature-dependent aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solution[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(46):13217-13220. |
| APA | Liang, Xiangfeng,Guo, Chen,Ma, Junhe,Wang, Jing,Chen, Shu,&Liu, Huizhou.(2007).Temperature-dependent aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solution.JOURNAL OF PHYSICAL CHEMISTRY B,111(46),13217-13220. |
| MLA | Liang, Xiangfeng,et al."Temperature-dependent aggregation and disaggregation of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) block copolymer in aqueous solution".JOURNAL OF PHYSICAL CHEMISTRY B 111.46(2007):13217-13220. |
入库方式： OAI收割
来源：过程工程研究所
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