Dongkeun Han,Yoonki Joung,Jonghee Kang,Eunyoung Kang
申请号：
US15017570
公开号：
US10005882B2
申请日:
2016.02.05
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Disclosed are a method for preparing a modified biodegradable polymer by using various additives and plasticizers in a biodegradable polymer which is non-toxic to human bodies, a biodegradable polymer prepared therefrom, and a biodegradable stent prepared by using the biodegradable polymer. Specifically, it is possible to reduce a decrease in molecular weight resulting from a thermal degradation occurring during the solid-phase molding processing of a biodegradable polymer by coating a solution in which various additives are dissolved during the modification of the biodegradable polymer to convert the hydroxyl end group into a functional group of a carboxylic group or a different kind of hydroxyl group.
