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Polyacrylic acid polymer modulates the UCST-type phase behavior of ionic liquid and water

RSC Advances, 2012
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SUPPLEMENTARY INFORMATION Polyacrylic acid polymer modulates the UCST - type phase behavior of ionic liquid and water Awanish Kumar, P. Madhusudhana Reddy and Pannuru Venkatesu* Department of Chemistry, University of Delhi, Delhi – 110 007. Refractive Index Setup. Figure IS. Schematic representation of experimental set up to determine the critical coexisting curve using refractive index measurements. Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012
Table IS. Coexistence curve data for 1-Hexyl-3-methylimidazolium tetrafluoroborate and water with and without polyacrylic acid (PAA). The measured data are of the refractive indices of IL (n 1 ) and water rich phase (n 2 ), respectively, as a function of temperature (T). 0 mg/ml of PAA in ILW; T c =58.256±0.002 0 C T n 1 n 2 50.796 1.39130 1.33208 51.249 1.39055 1.33194 51.678 1.38967 1.33250 52.322 1.38863 1.33334 53.170 1.38755 1.33467 53.723 1.38668 1.33556 54.574 1.38509 1.33717 55.250 1.38367 1.33868 56.115 1.38130 1.34121 56.803 1.37767 1.34338 57.427 1.37393 1.34619 57.836 1.37149 1.34865 57.984 1.37003 1.34988 58.103 1.36834 1.35112 58.158 1.36615 1.35141 58.181 1.36491 1.35193 58.208 1.36403 1.35316 58.219 1.36338 1.35262 Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012
Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012 SUPPLEMENTARY INFORMATION Polyacrylic acid polymer modulates the UCST - type phase behavior of ionic liquid and water Awanish Kumar, P. Madhusudhana Reddy and Pannuru Venkatesu* Department of Chemistry, University of Delhi, Delhi – 110 007. Refractive Index Setup. Figure IS. Schematic representation of experimental set up to determine the critical coexisting curve using refractive index measurements. Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012 Table IS. Coexistence curve data for 1-Hexyl-3-methylimidazolium tetrafluoroborate and water with and without polyacrylic acid (PAA). The measured data are of the refractive indices of IL (n1) and water rich phase (n2), respectively, as a function of temperature (T). 0 mg/ml of PAA in ILW; Tc=58.256±0.002 0C T n1 n2 50.796 1.39130 1.33208 51.249 1.39055 1.33194 51.678 1.38967 1.33250 52.322 1.38863 1.33334 53.170 1.38755 1.33467 53.723 1.38668 1.33556 54.574 1.38509 1.33717 55.250 1.38367 1.33868 56.115 1.38130 1.34121 56.803 1.37767 1.34338 57.427 1.37393 1.34619 57.836 1.37149 1.34865 57.984 1.37003 1.34988 58.103 1.36834 1.35112 58.158 1.36615 1.35141 58.181 1.36491 1.35193 58.208 1.36403 1.35316 58.219 1.36338 1.35262 Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012 58.238 1.36256 1.35395 58.256 1.36225 1.35414 0.5 mg/ml of PAA in ILW; Tc=57.126±0.002 0C T n1 n2 50.023 1.39190 1.33497 51.418 1.38937 1.33547 52.677 1.38703 1.33690 53.350 1.38558 1.33851 53.882 1.38395 1.33996 54.314 1.38287 1.34143 54.879 1.38108 1.34318 55.291 1.37963 1.34490 55.740 1.37837 1.34670 55.957 1.37729 1.34766 56.421 1.37566 1.35041 56.588 1.37439 1.35124 56.687 1.37313 1.35187 56.854 1.37205 1.35266 56.953 1.37026 1.35368 57.029 1.36767 1.35388 57.066 1.36592 1.35432 57.081 1.36589 1.35508 57.126 1.36502 1.35628 1.0 mg/ml of PAA in ILW; Tc=56.084±0.002 0C Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012 T n1 n2 50.043 1.38701 1.33291 51.008 1.38503 1.33415 52.019 1.38286 1.33672 52.608 1.38142 1.33852 52.973 1.38052 1.33960 53.548 1.37854 1.34159 54.058 1.37709 1.34357 54.489 1.37539 1.34510 54.908 1.37375 1.34681 55.150 1.37285 1.34806 55.459 1.37162 1.35033 55.689 1.37045 1.35197 55.898 1.36860 1.35422 55.945 1.36779 1.35464 55.985 1.36710 1.35495 56.054 1.36417 1.35652 56.028 1.36546 1.35615 56.055 1.36420 1.35722 56.084 1.36355 1.35809 1.5 mg/ml of PAA in ILW; Tc=55.168±0.002 0C T n1 n2 50.628 1.38061 1.33592 51.265 1.37933 1.33697 52.077 1.37744 1.33858 52.686 1.37631 1.34067 Electronic Supplementary Material (ESI) for RSC Advances This journal is © The Royal Society of Chemistry 2012 53.075 1.37534 1.34200 53.558 1.37431 1.34409 54.016 1.37235 1.34633 54.188 1.37128 1.34712 54.262 1.37089 1.34793 54.452 1.36956 1.34870 54.656 1.36817 1.35042 54.888 1.36688 1.35243 54.954 1.36632 1.35333 55.041 1.36523 1.35436 55.083 1.36449 1.35496 55.118 1.36288 1.35545 55.15 1.36200 1.35615 55.158 1.36120 1.35648 55.162 1.36038 1.35677 55.168 1.35977 1.35699
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