2-vinylpyuidine-co-N-vinyl-2-pyurolidone and 4-vinylpyridine-co-N-vinyl-2-pyrrolidone copolymers: Synthesis and reactivity ratios

Gatica Olivares, Nicolás Marcos; Gargallo G., Ligia; Radić Foschino, Deodato D.

2-vinylpyuidine-co-N-vinyl-2-pyurolidone and 4-vinylpyridine-co-N-vinyl-2-pyrrolidone copolymers: Synthesis and reactivity ratios

Date

1998

Authors

Gatica Olivares, Nicolás Marcos

Gargallo G., Ligia

Radić Foschino, Deodato D.

Abstract

Copolymers containing 2-vinylpyridine (2VPy) and 4-vinylpyridine (4VPy) with N-vinyl-2-pyrrolidone (VP) (2VPy-co-VP and 4VPy-co-VP, respectively) were synthesized and characterized. Copolymers with different compositions were obtained. The reactivity ratios were estimated by using the classical Finemann-Ross and Kelen Tudos linear procedures. These parameters were also estimated by using a computer program based on a non-linear minimization algorithm (NLMA), starting from the values of r(1) and r(2) obtained by the above linear procedures. Random copolymers with zones containing vinylpyridine blocks were obtained. (C) 1998 SCI.

Keywords

Copolymers, N-vinyl-2-pyrrolidone, 2-vinylpyridine, 4-vinylpyridine, Linear fitting methods, Non-linear fitting methods, Monomer reactivity ratios, 2-HYDROXYETHYL METHACRYLATE