Bioabsorbable and biocompatible polyurethanes and polyamides for medical devices

An absorbable polyurethane prepared from at least one monomer compound of the formula:

• wherein each X represents a member independently selected from the group consisting of:
• —CH2COO— (glycolic acid moiety);
• —CH(CH3)COO— (lactic acid moiety);
• —CH2CH2OCH2COO— (dioxanone moiety);
• —CH2CH2CH2CH2CH2COO— (caprolactone moiety);
• —(CH2)yCOO— where y is one of the numbers 2,3,4 and 6-24 inclusive, and
• —(CH2CH2O)z′CH2COO— where z′ is an integer between 2 and 24, inclusive;
• each X′ represents a member independently selected from the group consisting of:
• —OOCCH2- (glycolic acid moiety);
• —OOC(CH3)CH— (lactic acid moiety);
• —OOCCH2OCH2CH2— (dioxanone moiety);
• —OOCCH2CH2CH2CH2CH2- (caprolactone moiety);
• —OOC(CH2)y- where y is one of the numbers 2,3,4 and 6-24 inclusive;
• and
• —OOCCH2(OCH2CH2)z′- where z′ is an integer between 2 and 24, inclusive;
• each X″ represents a member independently selected from the group consisting of:
• —OCH2CO— (glycolic acid moiety);
• —OCH(CH3)CO— (lactic acid moiety);
• —OCH2CH2OCH2CO— (dioxanone moiety);
• —OCH2CH2CH2CH2CH2CO— (caprolactone moiety);
• —O(CH2)yCO— where y is one of the numbers 2,3,4 and 6-24 inclusive;
• and
• —O(CH2CH2O)z′CH2CO— where z′ is an integer between 2 and 24, inclusive;
• each Y represents a member independently selected from the group consisting of:
• —COCH2O— (glycolic ester moiety);
• —COCH(CH3)O— (lactic ester moiety);
• —COCH2OCH2 CH2O— (dioxanone ester moiety);
• —COCH2CH2CH2CH2CH2O— (caprolactone ester moiety);
• —CO(CH2)mO— where m is an integer between 2-4 and 6-24 inclusive;
• and
• —CO CH2O (CH2CH2O)n- where n is an integer between 2 and 24, inclusive;
• each Y′ represents a member independently selected from the group consisting of:
• —OCH2OC— (glycolic ester moiety);
• —O(CH3)CHOC— (lactic ester moiety);
• —OCH2CH2OCH2OC— (dioxanone ester moiety);
• —OCH2CH2CH2CH2CH2OC— (caprolactone ester moiety);
• —O(CH2)mOC— where m is an integer between 2-4 and 6-24 inclusive;
• and
• —(OCH2CH2)nOCH2OC— where n is an integer between 2 and 24 inclusive;
• each R is a benzyl or an alkyl group, the alkyl group being straight-chained or branched;
• each p is independently an integer between 1 and 4, inclusive;
• Z is O or NH;
• and
• Rn represents one or more members selected from the group consisting of H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO2, and Rn is attached directly to the aromatic rings or attached through an aliphatic chain.