Abstract:
Summary: In this study, the thermodynamic and physical properties of poly(acetyl benzofuran methylmethacrylate) [poly(ABM)], poly(acetyl benzofuran methylmethacrylate%41-coacrylonitrile) [poly(ABM%41-co-AN)] and poly(acetyl benzofuran methylmethacrylate%71-coacrylonitrile) [poly(ABM%71-co-AN)] were researched by using inverse gas chromatography. Two groups of alcohols and alkanes with different chemical natures and polarities were used to determine certain properties of [poly(ABM), poly(ABM%41-co-AN) and poly(ABM%71-co-AN)]-solute systems. The specific retention volume, Vg0, glass transition temperature, Tg; adsorption enthalpy, ?Ha; the sorption enthalpy, ?H1S; sorption free energy, ?G1S; sorption entropy, ?S1S; the weight fraction activity coefficients of solute probes at infinite dilution, ?1¥, partial molar enthalpy of solute probes at infinite dilution, ?H18; and Flory-Huggins interaction parameters, ?128; between polymer and solvents were determined in the temperature range of 493-343 K for poly(ABM) and 473-343 K for poly(ABM%41-coAN)-poly(ABM%71-coAN). Also, the solubility parameters of poly(ABM), poly(ABM%41-coAN) and poly(ABM%71-coAN) at infinite dilution were found out by plotting the graph of [d12 - (?G18/V1)] versus solubility parameters, d1, of the probes.
Page(s):
52-63
DOI:
DOI not available
Published:
Journal: Journal of Chemical Society of Pakistan, Volume: 40, Issue: 1, Year: 2018
Keywords:
polyacetyl benzofuran methylmethacrylatecoacrylonitrile polyABMcoAN
,
thermodynamic and physical properties
,
Polyacetyl benzofuran methylmethacrylate polyABM