Thermodynamic Interactions and Characterization of Poly (Acetyl Benzofuran Methylmethacrylate) and Poly(Acetyl BenzofuranMethylmethacrylate-co-Acrylonitrile) by Invers Gas Chromatography

KARAGÖZ M. H., BOLAT Ö.

JOURNAL OF CHEMICAL SOCIETY OF PAKISTAN, cilt.40, sa.1, ss.52-63, 2018 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 1
  • Basım Tarihi: 2018
  • Dergi Adı: JOURNAL OF CHEMICAL SOCIETY OF PAKISTAN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.52-63
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

In this study, the thermodynamic and physical properties of poly(acetyl benzofuran

methylmethacrylate) [poly(ABM)], poly(acetyl benzofuran methylmethacrylate41-coacrylonitrile)

[poly(ABM41-co-AN)] and poly(acetyl benzofuran methylmethacrylate71-coacrylonitrile)

[poly(ABM71-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(ABM41-co-AN) and poly(ABM71-co-AN)]-solute

systems. The specific retention volume, Vg

0, glass transition temperature, Tg adsorption enthalpy,

ΔHa the sorption enthalpy, ΔH1

S sorption free energy, ΔG1

S sorption entropy, ΔS1

S the weight

fraction activity coefficients of solute probes at infinite dilution, Ω1

, partial molar enthalpy of solute

probes at infinite dilution, ΔH1

∞ and Flory-Huggins interaction parameters, χ12

∞ between polymer

and solvents were determined in the temperature range of 493-343 K for poly(ABM) and 473-343 K

for poly(ABM41-coAN)-poly(ABM71-coAN). Also, the solubility parameters of poly(ABM),

poly(ABM41-coAN) and poly(ABM71-coAN) at infinite dilution were found out by plotting the

graph of [1

2 – (ΔG1

∞/V1)] versus solubility parameters, 1, of the probes.