ABSTRACT
CH2=C(X)COOR'OCORCOOR'OOCC(X)=CH2 + 2(n + l)NaCl (3)
Table I Oligoesteracrylates Produced in Russia
(5)
CH2=C(X)COOROH + HOOC-R'-COOH--+
CH2=C(X)COOR-OOC-R'-COOH (6)
where R' = -(CH2)"-' n = 4, 8, and R = C6H,. In the following stage the oligodiol that is produced is esterified with the
2(R) 3N 2CH2=C(X)COOROH + Cl-CO-OR' -C0-0Cl--_-::-2-:-:(R::-:-)-::3N-=-=· H-C-::::l,.....-
R-0-C-0-R'-0-C-0-R + 2 II II 0 0 (12)
By synthesis of oligoesters with the general formula given in reaction (10), OCA and OCM are produced with the desired physicochemical properties. With a view to thoroughly achieving the envisaged purposes, the following were particularly taken into account:
The first OCM produced industrially in Russia was a,w-(methacryloiloxyethylenoxycarbonyloxy)ethylenoxyethylene (OCM-2), with the following structure:
(13)
used. Thus, phenolic derivatives (ionol, diphenylpropane) prevent coloring processes and oxidizing agent effects [30].
