Thermodynamics of phase behavior in PEO/P(EO-b-DMS) homopolymer and block co-oligomer mixtures under pressure
文献类型：期刊论文
| 作者 | Jiang, SC; An, LJ; Jiang, BZ; Wolf, BA |
| 刊名 | MACROMOLECULAR CHEMISTRY AND PHYSICS
 |
| 出版日期 | 2003-12-08 |
| 卷号 | 204期号:18页码:2265-2273 |
| 关键词 | Phase Behavior Poly(Ethylene Oxide)/Poly(Ethylene Oxide)-block-Polydimethylsiloxane Mixture Pressure Effects Sanchez-lacombe Lattice Fluid Theory Thermodynamics |
| ISSN号 | 1022-1352 |
| DOI | 10.1002/macp.200350077 |
| 英文摘要 | The cloud-point temperatures (T-cl's) of poly(ethylene oxide) (PEO) and poly(ethylene oxide)-block-polydimethylsiloxane (P(EO-b-DMS)) homopolymer and block-oligomer mixtures were determined by turbidity measurements over a range of temperatures (105 to 130degrees), pressures (1 to 800 bar), and compositions (10-40 wt.-% PEO). The system phase separates upon cooling and T-cl was found to decrease with an increase in pressure for a constant composition. In the absence of special effects, this finding indicates negative excess volumes. Special attention was paid to the demixing temperatures as a function of the pressure for the different polymer mixtures and the plots in the T-phi plane (where phi signifies volume fractions). The cloud-point curves of the polymer mixture under pressures were observed for different compositions. The Sanchez-Lacombe (SL) lattice fluid theory was used to calculate the spinodals, the binodals, the Flory-Huggins (FH) interaction parameter, the enthalphy of mixing, and the volume changes of mixing. The calculated results show that modified P(EO-b-DMS) scaling parameters with the new combining rules can describe the thermodynamics of the PEO/P(EO-b-DMS) system well with the SL theory. |
| 语种 | 英语 |
| WOS记录号 | WOS:000187619000011 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/81349]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, SC |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Mainz, Inst Chem Phys, D-55099 Mainz, Germany |
| 推荐引用方式 GB/T 7714 | Jiang, SC,An, LJ,Jiang, BZ,et al. Thermodynamics of phase behavior in PEO/P(EO-b-DMS) homopolymer and block co-oligomer mixtures under pressure[J]. MACROMOLECULAR CHEMISTRY AND PHYSICS,2003,204(18):2265-2273. |
| APA | Jiang, SC,An, LJ,Jiang, BZ,&Wolf, BA.(2003).Thermodynamics of phase behavior in PEO/P(EO-b-DMS) homopolymer and block co-oligomer mixtures under pressure.MACROMOLECULAR CHEMISTRY AND PHYSICS,204(18),2265-2273. |
| MLA | Jiang, SC,et al."Thermodynamics of phase behavior in PEO/P(EO-b-DMS) homopolymer and block co-oligomer mixtures under pressure".MACROMOLECULAR CHEMISTRY AND PHYSICS 204.18(2003):2265-2273. |
入库方式： OAI收割
来源：化学研究所
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