Shape Memory Polymers

By: Jorge Ramos

MEEN 3344

Shape Memory PolymersBackground

Introduced to United States in 1984 after its original introduction in Japan.

Combination of Polymeric materials with the capability to temporarily deform then restore to their original shape through thermal stimuli such as temperature change.

Exhibit long covalent cross linked bonds. Tested to potentially deform up to 200% of

their original state and still restore their original shape.

Light weight Potentially biodegradable for surgical

procedures Cheaper to manufacture than Shape

memory Alloys.

Applications

Self Deployment Mechanisms

Eyeglass Frames Automatic auto body

repairs. Reusable Molds. Custom reusable

mandrels.

Anticipated Applications

Biodegradable biomedical stents.

Artificial muscles Aeronautical Morphing

Wings Outer Space self

deployment systems Self stitching

biodegradable materials

Cornerstone Research GroupVeriflex® Shape Memory Polymer

CRG is a leading engineering and research group that specializes in the discovery and development of innovative materials.

Veriflex is a shape memory polymer with an adjustable thermal activation range between -20ºF to 500 ºF.

Strong and stable SMP with elastic properties at given temperatures.

Used in the performance racing industry for rapid body repairs on complex surfaces.

References

Cornerstone Research Group http://crgrp.net

C&EN (Chemical Engineering News) “Suite of Shape Memory Polymers” Vol. 79. Number 6. (February 5, 2008)

William D. Callister, Jr., and David G. Rethwisch. Fundamentals of Material Science An Integrated Approach Hoboken, NJ: John Wiley & Sons Inc. 2008

Andreas Lenlein “Shape Memory Polymers – Biodegredable Sutures” 2002 <http://www.azom.com/Details.asp?ArticleID=1542>