US 11,628,235 B2 · Photo-cross-linkable shape-memory polymer and preparation method therefor

Abstract

The present invention relates to a photo-cross-linkable shape-memory polymer and a preparation method therefor. The shape-memory polymer according to one embodiment of the present invention comprises a photo-cross-linkable functional group, and thus a shape-memory polymer having a melting point suitable for a physiological or medical application device can be provided. Particularly, a method for preparing the shape-memory polymer, according to one embodiment of the present invention, uses a catalyst for inducing the simultaneous ring-opening polymerization of two monomers (CL, GMA) during synthesis of the shape-memory polymer, thereby enabling the synthesis time of the shape-memory polymer to be reduced, and shape-memory polymers having various melting points can be readily prepared by controlling the introduction amounts of CL and GMA.

Claims12

Dependent claims

A shape-memory polymer having a structure represented by the following Formula 1:

wherein R1, R2, and R3 are each independently hydrogen (H) or an alkyl group having 1 to 6 carbon atoms;
m and n are each independently an integer ranging from 1 to 20;
A, B1, and B2 are each independently oxygen (O) or sulfur (S);
and
each of x and y represents a molar percentage (mol %) of a repeating unit;
* means that
in formula 1 are repeated until x+y is 100;
provided that the sum of x and y is 100, and x is in a range of 80 to 98.

5 more elements

Dependencies are inferred from the claim text.

Photo-cross-linkable shape-memory polymer and preparation method therefor

Life of this patent

Photo-cross-linkable shape-memory polymer and preparation method therefor

Life of this patent

Abstract

Claims12