Citation:
Pérez-Dorado, A., F. Piérola, I., Baselga, J., Gargallo, L. & Radic, D. (1989). Complexation of poly(monobenzyl itaconate) and poly(N-vinyl-2-pyrrolidone) in dilute solution. Die Makromolekulare Chemie, 190 (11), pp. 2975-2981
Sponsor:
Financial support from CICYT under grant no. GG85-0013 is gratefully acknowledged. We also wish to acknowledge the assistence of Dr. I. Hernandez-Fuentes in the viscosity measurements.
Upon mixing dilute solutions (10⁻⁴ - 10⁻² mol/l) of poly(monobenzyl itaconate) (PMBI) and poly(N-vinyl-2-pyrrolidone) (PVP) in methanol, soluble polycomplex particles are formed. Here we report on the spectrophotometric determination of the turbidity of differUpon mixing dilute solutions (10⁻⁴ - 10⁻² mol/l) of poly(monobenzyl itaconate) (PMBI) and poly(N-vinyl-2-pyrrolidone) (PVP) in methanol, soluble polycomplex particles are formed. Here we report on the spectrophotometric determination of the turbidity of different solutions of PVP and PMBI as a function of polymer concentration and PVP molecular weight. Viscosity measurements were also performed. The polycomplex is weak. Polycomplex particles are more compact and much larger than separated chains of polyacid and polybase. No definite stoichiometry is observed and a microgel-like structure is proposed.[+][-]
Description:
Segunda parte disponible en: http://hdl.handle.net/10016/26015