Studies on the microstructure of the polymer obtained by chemical modification of poly(oxy-1-chloromethyl-ethylene-co-oxyethylene) (PECH-PEO) with phenolate
M. Perez et al., Studies on the microstructure of the polymer obtained by chemical modification of poly(oxy-1-chloromethyl-ethylene-co-oxyethylene) (PECH-PEO) with phenolate, POLYMER, 41(7), 2000, pp. 2349-2358
Poly(oxy-1-chloromethylethylene-co-oxyethylene) copolymer (PECH-PEO) has be
en modified chemically by phenolate, producing dehydrochlorination as a sid
e reaction, because of its basic character. The comonomer composition of th
e resulting poly(oxy-1-chloromethylethylene-co-oxyethylene-co-oxy-1-methyle
neethylene-co-oxy-1-phenoxy-methylethylene) can be quantitatively determine
d by C-13 NMR spectroscopy. A series of copolymeric models were synthesized
to make the complete assignment of all the signals appearing in the spectr
um of the tetrapolymer. The various C-13 NMR signals in the spectra were as
signed to dyads, triads or tetrads of all the possible comonomer sequences
and in some cases to the tacticity. (C) 1999 Elsevier Science Ltd. All righ
ts reserved.