Cold, warm, and hot programming of shape memory polymers

• Published in: Journal of polymer science. Part B, Polymer physics Vol. 54; no. 14; pp. 1319 - 1339
• Main Authors: Li, Guoqiang, Wang, Anqi
• Format: Journal Article
• Language: English
• Published: Hoboken John Wiley & Sons, Ltd 15.07.2016; Blackwell Publishing Ltd; Wiley Subscription Services, Inc
• Subjects: amorphous; cold; cold-programming; crystalline; damage; Entropy; heat; Locking; Polymers; Programming; Recovery; Shape memory; shape memory polymer; Strain; strain recovery; stress recovery; Stresses; temperature

In this article, programming is classified as hot, warm, and cold, based on the temperature zone within which the programming is conducted. The strain and stress locking and releasing mechanisms are discussed within the thermodynamics framework. A new formula is developed for quantifying the strain...