Cover Image, Volume 50, Issue 10

Shape memory polymer foams exhibiting uniform cell structure and densities as low as 0.015 g/cc are prepared using a combination of physical and chemical blowing processes, as presented by Pooja Singhal, Jennifer N. Rodriguez, Ward Small, Scott Eagleston, Judy Van de Water, Duncan J. Maitland, and Thomas S. Wilson on page 724. A dense covalently crosslinked structure gives them a high modulus, resulting in strong shape recovery and high volume expansion from a fully compressed state. In vitro biocompatibility test results suggest potential usage of these materials in biomedical applications.