A telechelic oligomer with OH and groups was prepd. from L,L-lactide (LA) and 1,4-butanediol and then treated with sebacoyl dichloride and then 1,6-hexanediamine to give poly(L,L-lactide)-polyamide copolymers. Properties of the oligomer and polyesteramide were given. The compn. of the latter varied by 25-45 wt.% LA according to the mol. wt. of the oligomer and ratio of reactants. Yields and viscosities were high with mol. wt. of polyamide blocks being 1000-2000.
Synthesis of block polyesteramides containing biodegradable poly(L,L-lactide) segments / Andini, Salvatore; Ferrara, Luciano; Maglio, Giovanni; Palumbo, Rosario. - In: MACROMOLECULAR RAPID COMMUNICATIONS. - ISSN 1022-1336. - STAMPA. - 9:3(1988), pp. 119-124.
Synthesis of block polyesteramides containing biodegradable poly(L,L-lactide) segments.
ANDINI, SALVATORE;FERRARA, LUCIANO;MAGLIO, GIOVANNI;PALUMBO, ROSARIO
1988
Abstract
A telechelic oligomer with OH and groups was prepd. from L,L-lactide (LA) and 1,4-butanediol and then treated with sebacoyl dichloride and then 1,6-hexanediamine to give poly(L,L-lactide)-polyamide copolymers. Properties of the oligomer and polyesteramide were given. The compn. of the latter varied by 25-45 wt.% LA according to the mol. wt. of the oligomer and ratio of reactants. Yields and viscosities were high with mol. wt. of polyamide blocks being 1000-2000.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
