Aggregation behavior of acrylamide/2-phenoxyethyl acrylate and its interaction with sodium dodecyl sulfate in aqueous solution studied by proton 1D and 2D NMR
文献类型：期刊论文
| 作者 | Gao, HC ; Mao, SZ ; Dai, YH ; Li, MZ ; Yuan, HZ ; Wang, EJ ; Du, YR |
| 刊名 | COLLOID AND POLYMER SCIENCE
 |
| 出版日期 | 2005 |
| 卷号 | 283期号:5页码:496 |
| 关键词 | BLOCK-COPOLYMER SOLUTIONS MODIFIED POLYACRYLAMIDE IONIC SURFACTANTS PROPYLENE-OXIDE SELF-DIFFUSION ETHYLENE-OXIDE ASSOCIATION POLY(ACRYLAMIDE) POLYMERS ETHER |
| ISSN号 | 0303-402X |
| 通讯作者 | Mao, SZ: Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China. |
| 中文摘要 | H-1 NMR self-diffusion coefficient, spin-lattice relaxation time, spin-spin relaxation time, and two-dimensional nuclear Overhauser enhancement (2D NOESY) measurements have been used to study the association behavior of a novel hydrophobically associating copolymer composed of acrylamide ( AM) and a small amount of 2-phenoxyethyl acrylate ( POEA), and its interaction with the anionic surfactant sodium dodecyl sulfate (SDS). Three sets of copolymers with approximately the same composition but with different hydrophobic POEA contents were investigated. The POEA contents for these copolymers were about 1.41, 1.03, and 0.56 mol% respectively, as validated by H-1 NMR spectra. Self-diffusion coefficient measurements show that the aggregation process occurs in a relative narrow concentration range and the critical association concentrations (cacs), of these copolymers are within this narrow concentration range, which are in agreement with those measured by viscosity measurements (6 g L-1). Above this concentration, the hydrophobic POEA moieties are found to associate and possibly build a transitory three-dimensional network along the polyacrylamide (PAM) backbones, which induces a strong decrease in NMR parameters including self-diffusion coefficients and relaxation times. The surfactant SDS showed a significant interaction with the copolymer in the dilute solution. Addition of SDS resulted in the binding of SDS on copolymer POEA-PAM segments and reinforced the interchain transient network formation of copolymer at a concentration below its cac. In the SDS/POEA-PAM mixed systems, the hydrophobic methylene groups of the SDS molecules were preferentially located in the vicinity of the phenoxy groups of the POEA hydrophobes. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33520]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao, HC,Mao, SZ,Dai, YH,et al. Aggregation behavior of acrylamide/2-phenoxyethyl acrylate and its interaction with sodium dodecyl sulfate in aqueous solution studied by proton 1D and 2D NMR[J]. COLLOID AND POLYMER SCIENCE,2005,283(5):496. |
| APA | Gao, HC.,Mao, SZ.,Dai, YH.,Li, MZ.,Yuan, HZ.,...&Du, YR.(2005).Aggregation behavior of acrylamide/2-phenoxyethyl acrylate and its interaction with sodium dodecyl sulfate in aqueous solution studied by proton 1D and 2D NMR.COLLOID AND POLYMER SCIENCE,283(5),496. |
| MLA | Gao, HC,et al."Aggregation behavior of acrylamide/2-phenoxyethyl acrylate and its interaction with sodium dodecyl sulfate in aqueous solution studied by proton 1D and 2D NMR".COLLOID AND POLYMER SCIENCE 283.5(2005):496. |
入库方式： OAI收割
来源：物理研究所
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