Compositions of mechanically strong absorbable polymer blends of precisely controllable absorption rates, processing methods, and products thereof

摘要

A bioabsorbable, bioreabsorbable or biodegradable polymer blend, comprising: a mixture of a first polymer component and a second polymer component, wherein the first polymer component has a weight average molecular weight of 42,000 daltons at 175,000 daltons, and the second component The polymer has a weight average molecular weight of 1,400 daltons at 24,000 daltons, wherein said second polymer component comprises at least 1.25% by weight of the mixture, wherein at least one of said components is at least partially encapsulated at the ends by a group of carboxylic acid, in which the term encapsulated between enter means the chemical modification of one end of the polymer chain, and in which an acid level of said mixture is 0.3% or higher