TY - JOUR
T1 - Synthesis and monomer reactivity ratios of (vinylcyclohexane-co-N-vinyl-2-pyrrolidone) copolymer
AU - Gatica, Nicolás
AU - Gargallo, Ligia
AU - Radic, Deodato
PY - 2002/7
Y1 - 2002/7
N2 - A copolymer containing vinylcyclohexane (VCH) and N-vinyl-2-pyrrolidone (VP) at different compositions was synthesized and characterized. The monomer reactivity ratios (MRR) were estimated by using the classical Fineman-Ross and Kelen-Tüdõs linear fitting methods. These parameters were also estimated using a nonlinear computational fitting procedure, known as reactivity ratios error in variable model (RREVM). In this case, the values of MRR are rVP = 2.2 and rVCH = 0.0. Composition shifts and MRR values for (vinylcyclohexane-co-N-vinyl-2-pyrrolidone) copolymer (VCH-co-VP) are interpreted in terms of the relative comonomeric structures. A copolymer with zones containing VP blocks with isolated units of VCH between them is obtained. The presence or absence of the resonance stabilization effect is taken into account. The results are compared with those of similar related copolymeric systems.
AB - A copolymer containing vinylcyclohexane (VCH) and N-vinyl-2-pyrrolidone (VP) at different compositions was synthesized and characterized. The monomer reactivity ratios (MRR) were estimated by using the classical Fineman-Ross and Kelen-Tüdõs linear fitting methods. These parameters were also estimated using a nonlinear computational fitting procedure, known as reactivity ratios error in variable model (RREVM). In this case, the values of MRR are rVP = 2.2 and rVCH = 0.0. Composition shifts and MRR values for (vinylcyclohexane-co-N-vinyl-2-pyrrolidone) copolymer (VCH-co-VP) are interpreted in terms of the relative comonomeric structures. A copolymer with zones containing VP blocks with isolated units of VCH between them is obtained. The presence or absence of the resonance stabilization effect is taken into account. The results are compared with those of similar related copolymeric systems.
KW - Aromaticity
KW - Copolymer compositions
KW - Monomer reactivity ratios
KW - N-vinyl-2-pyrrolidone
KW - Reactivity ratios error in variable model
KW - Vinylcyclohexane
UR - https://www.scopus.com/pages/publications/0036643286
U2 - 10.1016/S0014-3057(01)00305-6
DO - 10.1016/S0014-3057(01)00305-6
M3 - Article
AN - SCOPUS:0036643286
SN - 0014-3057
VL - 38
SP - 1371
EP - 1375
JO - European Polymer Journal
JF - European Polymer Journal
IS - 7
ER -