In order to obtain polymers provided with improved haemocompatibility a commercial ethylene-vinyl alcohol copolymer (EVAL) was chemically modified by the introduction of different amounts of carboxylated groups. The carboxylation was carried out by reaction of the EVAL hydroxy groups with three different anhydrides. The influence of the reagents molar ratio on the functionalization degree was evaluated. The new terpolymers (EVAL-COOH) have been characterized.
Synthesis and characterization of novel carboxylated ethylene-vinyl alcohol polymers / Marconi, Valter; Piozzi, Antonella; Roberta, Marcone. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 37:5(2001), pp. 1021-1025. [10.1016/s0014-3057(00)00148-8]
Synthesis and characterization of novel carboxylated ethylene-vinyl alcohol polymers
MARCONI, Valter;PIOZZI, Antonella;
2001
Abstract
In order to obtain polymers provided with improved haemocompatibility a commercial ethylene-vinyl alcohol copolymer (EVAL) was chemically modified by the introduction of different amounts of carboxylated groups. The carboxylation was carried out by reaction of the EVAL hydroxy groups with three different anhydrides. The influence of the reagents molar ratio on the functionalization degree was evaluated. The new terpolymers (EVAL-COOH) have been characterized.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
