Key;
Lab;
of;
Biorheological;
Science;
and;
Technology;
(Ministry;
of;
Education),;
Research;
Center;
for;
Bio-inspired;
Material;
Science;
and;
Engineering,;
College;
of;
Bioengineering,;
Chongqing;
University,;
Chongqing;
400030,;
China;
形状记忆特性; PEG400; 机械性能; 线性分段; 氨酯; 哌嗪; 刚性; 柔性;