| Title | Solubility of neutral and charged polymers in ionic liquids studied by laser light scattering |
| Authors | Chen, Ye Zhang, Yumei Ke, Fuyou Zhou, Jihan Wang, Huaping Liang, Dehai |
| Affiliation | Peking Univ, Coll Chem & Mol Engn, Minist Educ, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China. Peking Univ, Coll Chem & Mol Engn, Minist Educ, Key Lab Polymer Chem & Phys, Beijing 100871, Peoples R China. Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Fiber Mat, Shanghai 201620, Peoples R China. |
| Keywords | Ionic liquids Neutral polymers Charged polymers BLOCK-COPOLYMER MICELLES RHEOLOGICAL BEHAVIOR CELLULOSE SOLUTIONS SOLVENT-EXTRACTION CHLORIDE DISSOLUTION WATER GELS POLYMERIZATION SOLVATION |
| Issue Date | 2011 |
| Publisher | polymer |
| Citation | POLYMER.2011,52,(2),481-488. |
| Abstract | The solubility and chain conformation of different types of homopolymers in low viscosity ionic liquids (ILs), 1-allyl-3-methylimidazolium chloride ([AMIM][CI]) at 50 degrees C and 1-butyl-3-methylimidazolium formate ([BMIM][COOH]) at 25 degrees C. were studied by laser light scattering (LLS). For neutral polymers, such as polyvinyl alcohol and polysulfonamide, aggregation occurred in all the cases except for polyvinyl alcohol in [BMIM][COOH]. For negative polyelectrolytes, such as DNA and polystyrene sulfonate, single chain conformation was observed. However, the hydrodynamic radius of both polymers was much smaller than that in good solvents, suggesting that the chains were condensed. Cellulose was soluble in [AMIM]/[CI], and non-diffusive mode was observed by dynamic light scattering. Zeta potential analysis indicated that cellulose exhibited the feature of polyelectrolyte. The solubility of homopolymers could be qualitatively explained by treating polymer/IL as a ternary system: polymer, cation, and anion. It was the mutual interactions determined the solubility and conformation of polymers in ILs. (C) 2010 Elsevier Ltd. All rights reserved. |
| URI | http://hdl.handle.net/20.500.11897/151149 |
| ISSN | 0032-3861 |
| DOI | 10.1016/j.polymer.2010.11.034 |
| Indexed | SCI(E) EI |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 高分子化学与物理教育部重点实验室 |
