Shape-Memory Properties of Segmented Polymers Containing Aramid Hard Segments and Polycaprolactone Soft Segments

Polymers

Christian Schuh¹  Kerstin Schuh¹  Maria C. Lechmann¹  Louis Garnier¹ 

[1] Chemistry, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK;

关键词: shape-memory polymer;    aramid;    polycaprolactone;   

DOI  :  10.3390/polym2020071

来源: mdpi

【 摘 要 】

A series of segmented multiblock copolymers containing aramid hard segments and extended polycaprolactone soft segments (with an M_n of 4,200 or 8,200 g mol^–1) was prepared and tested for their shape-memory properties. Chain extenders were essential to raise the hard segment concentration so that an extended rubbery plateau could be observed. Dynamic mechanical thermal analysis provided a useful guide in identifying (i) the presence of a rubbery plateau, (ii) the flow temperature, and (iii) the temperature when samples started to deform irreversibly.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.