Complete mapping of the morphologies of some linear and graft fluorinated co-oligomers in an aprotic solvent by dissipative particle dynamics


Ozen A., Sen U., Atilgan C.

JOURNAL OF CHEMICAL PHYSICS, cilt.124, 2006 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 124 Konu: 6
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1063/1.2162885
  • Dergi Adı: JOURNAL OF CHEMICAL PHYSICS

Özet

The mesoscopic morphologies of linear and graft fluorinated block copolymers of ABCBA and C:BA types, respectively, have been investigated by using dissipative particle dynamics method. Self-assembly in a selective solvent has been examined by the introduction of dimethylformamide as the choice of solvent. By comparing the solubility parameters calculated using atomistic simulations, fluorine-containing segments are found to be immiscible both with other segments of the polymer and with the solvent. Morphologies of the pure linear and graft copolymers were lamellar and cylindrical, respectively. Interfacial tension versus concentration curves have been used to explain the self-assembly behavior of copolymers in solution, as well as to predict the kinetic mechanisms responsible for this behavior. (c) 2006 American Institute of Physics.