Bioresorbable, stereochemically defined elastomers and methods of making and using same
AssigneeDuke University
InventorsMatthew L. Becker, Yen-Hao Hsu, Shantanu Nikam
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AssigneeDuke University
InventorsMatthew L. Becker, Yen-Hao Hsu, Shantanu Nikam
Estimating the term…
In various embodiments, the present invention relates to a series of biodegradable thiol-yne elastomers that incorporate degradable C4-C14 dicarboxylic acid-based monomer units made using a nucleophilic thiol-yne polymerization methodology that targets high cis-content at comparable molar masses to provide excellent mechanical properties. As each C4-C14 dicarboxylic acid-based monomer unit contains at least two labile ester linkages, altering the stoichiometry of degradable C4-C14 dicarboxylic acid-based monomer unit incorporation allows the degradation rate of the material to be tuned precisely, while retaining control over the mechanical properties by maintaining the cis/trans stereochemistry of the double bonds to provide independent tuning of mechanical and degradative properties. In one or more embodiments, these degradable C4-C14 dicarboxylic acid-based monomers can be introduced into the thiol-yne polymerization reaction via one, or both, of the thiol and alkyne functional groups, providing additional flexibility in developing suitable polymer species.
A bioresorbable elastomer composition for biomaterial applications comprising a residue of a substantially linear C1 to C12 bis-propiolate, a residue of a C4 to C14 dicarboxylic acid-based dithiol, and a residue of a substantially linear dithiol, wherein at least 50% of double bonds in said bioresorbable elastomer composition are in a cis configuration.
Dependencies are inferred from the claim text.