{"compilation": {"title": "Solubility data from IUPAC SDS Volume 70 (page ?) - Carbon dioxide, Methane, Copoly(pyromellitic dianhydride-oxydianiline) PMDA", "publisher": "The International Union of Pure and Applied Chemistry", "keywords": "Solubility, Solubility data series", "compilers": "Yuri P. Yampol'skii", "sources": [{"citation": "O'Brien, K. C.; Koros, W. J.; Husk, G. R.; J. Membr. Sci. 35, 217 (1988).", "pubtype": "paper", "url": "https://doi.org/10.1016/s0376-7388(00)82445-x"}], "system": "Carbon dioxide, Methane, Copoly(pyromellitic dianhydride-oxydianiline) PMDA", "substances": [{"constituent": 2, "name": "Copoly(pyromellitic dianhydride-oxydianiline) (PMDA-ODA)", "formula": null, "molweight": 0.0, "casrn": "25036-53-7", "sample": "PMDA-ODA: polymerization performed in dimethylacetamide at $\\pu{288-293 K}$ to form polyamic acid precursor according to standard procedure. The polyamic acid solution was wet cast on a glass substrate heated for one hour at $\\pu{353 K}$ under $\\ce{Ar}$ to remove the solvent and then imidized by a two-step cure under vacuum ($\\pu{24 hrs}$) at $\\pu{483 K}$ and four hours at $\\pu{553 K}$). The polymer studied did not reveal a glass transaction temperature at temperatures up to 750 K. $\\rho = \\pu{1.402 g mL-1}$."}, {"constituent": 1, "name": "Carbon dioxide", "formula": "CO2", "molweight": 44.0095, "casrn": "124-38-9", "inchi": "InChI=1S/CO2/c2-1-3", "inchikey": "CURLTUGMZLYLDI-UHFFFAOYSA-N"}, {"constituent": 1, "name": "Methane", "formula": "CH4", "molweight": 16.0425, "casrn": "74-82-8", "inchi": "InChI=1S/CH4/h1H4", "inchikey": "VNWKTOKETHGBQD-UHFFFAOYSA-N"}], "method": "Sorption measurements were carried out using a single transducer apparatus described in [1].", "reference": {"citation": "Sroog, C. E.; Endrey, A. L.; Abravio, S. V.; Berro, C. E.; Edwards, W. M.; Olivier, K. L.; J. Pol. Sci., Part A 3, 1373 (1965).", "pubtype": "paper", "url": "https://doi.org/10.1002/pol.1965.100030410"}, "dataset": [{"series": 1, "title": "Sorption isotherms of carbon dioxide and methane in PMDA-ODA at 308 K (The original data were represented graphically)", "points": [{"pntnum": 1, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.6e-01", "significand": "1.6", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "1.436e+01", "significand": "1.436", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 2, "conditions": [], "data": [{"property": "Ambient pressure", "number": "3.6e-01", "significand": "3.6", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.217e+01", "significand": "2.217", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 3, "conditions": [], "data": [{"property": "Ambient pressure", "number": "5.2e-01", "significand": "5.2", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "2.696e+01", "significand": "2.696", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 4, "conditions": [], "data": [{"property": "Ambient pressure", "number": "7.6e-01", "significand": "7.6", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "3.212e+01", "significand": "3.212", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 5, "conditions": [], "data": [{"property": "Ambient pressure", "number": "9.8e-01", "significand": "9.8", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "3.622e+01", "significand": "3.622", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 6, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.37e+00", "significand": "1.37", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "4.211e+01", "significand": "4.211", "exponent": "1", "sigfigs": "4", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 7, "conditions": [], "data": [{"property": "Ambient pressure", "number": "2.1e-01", "significand": "2.1", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "3.21e+00", "significand": "3.21", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 8, "conditions": [], "data": [{"property": "Ambient pressure", "number": "3.1e-01", "significand": "3.1", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "4.46e+00", "significand": "4.46", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 9, "conditions": [], "data": [{"property": "Ambient pressure", "number": "4.7e-01", "significand": "4.7", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "5.84e+00", "significand": "5.84", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 10, "conditions": [], "data": [{"property": "Ambient pressure", "number": "7.1e-01", "significand": "7.1", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "7.36e+00", "significand": "7.36", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 11, "conditions": [], "data": [{"property": "Ambient pressure", "number": "9.1e-01", "significand": "9.1", "exponent": "-1", "sigfigs": "2", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "8.61e+00", "significand": "8.61", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 12, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.00e+00", "significand": "1.00", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "9.07e+00", "significand": "9.07", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}, {"pntnum": 13, "conditions": [], "data": [{"property": "Ambient pressure", "number": "1.12e+00", "significand": "1.12", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{MPa}$"}, {"property": "Sorption", "number": "9.80e+00", "significand": "9.80", "exponent": "0", "sigfigs": "3", "unit": "$\\pu{V_{1}/V_{2}}$"}], "supplemental": []}]}]}}