Inscriere cercetatori

Site nou !

Daca nu va puteti recupera parola (sau aveti alte probleme), scrieti-ne la pagina de contact. Situl vechi se gaseste la adresa old.ad-astra.ro

Facebook

Viscometric and rheological study of polyacrylonitrile

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Brunchi C.E., Bercea M, Morariu S

Editorial: e-Polymers, no. 065, p.1-10, 2009.

Rezumat:

The viscometric behaviour of polyacrylonitrile solutions in dimethylformamide has been examined in different regimes of concentration. For semidilute and concentrated solutions, viscoelastic properties were determined and discussed. The viscosity – concentration curves show some specific behaviours for polyacrylonitrile solutions at very low and high concentrations. The overlap concentration was evidenced as being the crossover of two scaling laws characterizing the particle solution and network solution regimes.

Cuvinte cheie: polyacrylonitrile solution, viscosity, overlap concentration

URL: http://www.e-polymers.org