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Crystallization and Rheology of Poly(ethylene oxide) in Imidazolium Ionic Liquids
Liu, Fuyong1,2,3; Lv, Yuxia1,2; Liu, Jiajian1,2; Yan, Zhi-Chao1,2; Zhang, Baoqing1,2; Zhang, Jun1,2; He, Jiasong1; Liu, Chen-Yang1,2
2016-08-23
Source PublicationMACROMOLECULES
Volume49Issue:16Pages:6106-6115
AbstractPolymer and ionic liquid (IL) mixtures have attracted an increasing amount of attention due to their unique properties and potential applications. The interactions between poly(ethylene oxide) (PEO) and imidazolium ILs of different cation alkyl lengths and anion structures have been investigated by measuring melting points (T-m), contact angles, and rheological properties. T-m of crystalline PEO dramatically decreased when it was blended with ILs. Similarly, the contact angles of different ILs on a PEO surface proportionally decreased. The interaction energy, as calculated from melting point depression using the Flory equation, increased with the length of imidazolium alkyl cations and the size of anions. The different anionic structures had a more significant influence on the interaction energy than the alkyl chain lengths of cations. These trends accorded with the solubility obtained by high-energy X-ray diffraction and swelling ratio measurements of PEO in different ILs [Asai et al. Macromolecules 2013, 46, 2369-2375] and the solubility of poly(methyl methacrylate) in different Its [Ueno et al. Langmuir 2014, 30, 3228-3235]. The rheological behavior of PEO in three different anionic ILs has also been studied to determine the effect of the anions on PEO conformations. The molecular weight dependence of the intrinsic viscosity of PEO in Its revealed that the solvent quality of ILs (from poor solvents to good solvents) is highly influenced by anionic structures, which was consistent with the results of the melting point depression and contact angle.
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/35212
Collection工程塑料实验室
Affiliation1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Shanxi Univ, Inst Environm Sci, Taiyuan 030006, Peoples R China
Recommended Citation
GB/T 7714
Liu, Fuyong,Lv, Yuxia,Liu, Jiajian,et al. Crystallization and Rheology of Poly(ethylene oxide) in Imidazolium Ionic Liquids[J]. MACROMOLECULES,2016,49(16):6106-6115.
APA Liu, Fuyong.,Lv, Yuxia.,Liu, Jiajian.,Yan, Zhi-Chao.,Zhang, Baoqing.,...&Liu, Chen-Yang.(2016).Crystallization and Rheology of Poly(ethylene oxide) in Imidazolium Ionic Liquids.MACROMOLECULES,49(16),6106-6115.
MLA Liu, Fuyong,et al."Crystallization and Rheology of Poly(ethylene oxide) in Imidazolium Ionic Liquids".MACROMOLECULES 49.16(2016):6106-6115.
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