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Open Access Research Article

Physico-Chemical Properties of Two Poly(carboxybetaines) Based on Poly(4-vinylpyridine)

ANCA GIORGIANA GRIGORAS, STEFANIA RACOVITA, SILVIA VASILIU, ALINA DIACONU, VASILE CRISTIAN GRIGORAS, LACRAMIOARA OCHIUZ
DOI Not yet assigned
Published 30 Sep 2016
Pages 440–442

Abstract

The poly(betaines) have been still intensively studied due to them biomedical potential. In the present work, two poly(carboxybetaines) derived from poly(4-vinylpyridine) P4VP that have methylene (P4VPB-1) or ethylene (P4VPB-2) spacer between N+ and COO- groups were investigated in order to evaluate its physico-chemical properties in aqueous salted solutions with NaCl or CaCl2. The values of refractive index increment dn/dc, weight-average molecular weight Mw, hydrodynamic radius Rh, and particle size distribution depend on the solvent type and balance between molecular forces as refractometric and laser light scattering measurements showed.

Keywords: differential refractometry; laser light scattering; poly(carboxybetaine)

How to Cite this Article

GRIGORAS, A., RACOVITA, S., VASILIU, S., DIACONU, A., GRIGORAS, V., & OCHIUZ, L. (2016). Physico-Chemical Properties of Two Poly(carboxybetaines) Based on Poly(4-vinylpyridine). Materiale Plastice, 53(3), 440–442.
GRIGORAS A, RACOVITA S, VASILIU S, DIACONU A, GRIGORAS V, OCHIUZ L. Physico-Chemical Properties of Two Poly(carboxybetaines) Based on Poly(4-vinylpyridine). Materiale Plastice. 2016;53(3):440–442.
A. GRIGORAS, S. RACOVITA, S. VASILIU, A. DIACONU, V. GRIGORAS, and L. OCHIUZ, "Physico-Chemical Properties of Two Poly(carboxybetaines) Based on Poly(4-vinylpyridine),” Materiale Plastice, vol. 53, no. 3, pp. 440–442, 2016.
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