TY - JOUR
T1 - Surface modification of poly(vinylidene fluoride) by alkaline treatment Part 2. Process modification by the use of phase transfer catalysts
AU - Ross, G. J.
AU - Watts, J. F.
AU - Hill, M. P.
AU - Morrissey, P.
PY - 2001
Y1 - 2001
N2 - A detailed study of the alkaline modification of poly(vinylidene fluoride) (PVdF) by a phase transfer catalyst (PTC) medium has been carried out by X-ray photoelectron spectroscopy, (XPS), secondary ion mass spectrometry (SIMS) and Raman spectroscopies, to determine the composition of the modified surface layer. The study indicates the formation of a surface layer consisting of conjugated C=C bonds, concomitant with surface defluorination and the inclusion of oxygen functionalities on treatment. A previous investigation studied the affect of alkaline treatment, however without the use of PTCs (Ross GJ, Watts JF, Hill MP, Morrissey P. Surface modification of poly(vinylidene fluoride) by alkaline treatment. 1. The degradation mechanism Polymer 2000;41: 1695-96.), that produced a surface layer with different functionalities. A mechanism for the degradation process in the presence of a PTC is proposed in this paper, which includes the formation of the polyene structure followed by hydroxide attack to yield hydroxyl and carbonyl groups and more complex oxygen functionalities.
AB - A detailed study of the alkaline modification of poly(vinylidene fluoride) (PVdF) by a phase transfer catalyst (PTC) medium has been carried out by X-ray photoelectron spectroscopy, (XPS), secondary ion mass spectrometry (SIMS) and Raman spectroscopies, to determine the composition of the modified surface layer. The study indicates the formation of a surface layer consisting of conjugated C=C bonds, concomitant with surface defluorination and the inclusion of oxygen functionalities on treatment. A previous investigation studied the affect of alkaline treatment, however without the use of PTCs (Ross GJ, Watts JF, Hill MP, Morrissey P. Surface modification of poly(vinylidene fluoride) by alkaline treatment. 1. The degradation mechanism Polymer 2000;41: 1695-96.), that produced a surface layer with different functionalities. A mechanism for the degradation process in the presence of a PTC is proposed in this paper, which includes the formation of the polyene structure followed by hydroxide attack to yield hydroxyl and carbonyl groups and more complex oxygen functionalities.
KW - Conjugation
KW - Phase transfer catalysts
KW - Poly(vinylidene fluoride)
UR - https://www.scopus.com/pages/publications/0033779367
U2 - 10.1016/S0032-3861(00)00328-1
DO - 10.1016/S0032-3861(00)00328-1
M3 - Article
AN - SCOPUS:0033779367
SN - 0032-3861
VL - 42
SP - 403
EP - 413
JO - Polymer
JF - Polymer
IS - 2
ER -