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Free recovery effects of shape-memory polymers for cardiovascular stents

Publication ,  Conference
Yakacki, CM; Shandas, R; Lanning, C; Gall, K
Published in: Materials Research Society Symposium Proceedings
January 1, 2005

The shape-memory effect was examined in polymer stents intended for cardiovascular applications. Four polymer networks were synthesized from polyethylene glycol) dimethacrylate and tert-butyl acrylate with 10 wt% and 20 wt% crosslinker, and with glass transition temperatures (Tg) of 52°C and 55°C. Solid and 50% porous stents were manufactured and tested for free strain recoverability at temperatures at or just above 37°C. Stents with lower glass transition temperatures and a higher degree of crosslinking recovered faster than their counterparts. Lower deformation (packaging) temperatures and higher recovery temperatures induce more rapid recovery. The presence of geometrical features, such as pores, initiated recovery sooner, but had negligible influence on overall recovery. © 2006 Materials Research Society.

Duke Scholars

Published In

Materials Research Society Symposium Proceedings

DOI

ISSN

0272-9172

Publication Date

January 1, 2005

Volume

898

Start / End Page

184 / 191
 

Citation

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Yakacki, C. M., Shandas, R., Lanning, C., & Gall, K. (2005). Free recovery effects of shape-memory polymers for cardiovascular stents. In Materials Research Society Symposium Proceedings (Vol. 898, pp. 184–191). https://doi.org/10.1557/proc-0898-l15-01
Yakacki, C. M., R. Shandas, C. Lanning, and K. Gall. “Free recovery effects of shape-memory polymers for cardiovascular stents.” In Materials Research Society Symposium Proceedings, 898:184–91, 2005. https://doi.org/10.1557/proc-0898-l15-01.
Yakacki CM, Shandas R, Lanning C, Gall K. Free recovery effects of shape-memory polymers for cardiovascular stents. In: Materials Research Society Symposium Proceedings. 2005. p. 184–91.
Yakacki, C. M., et al. “Free recovery effects of shape-memory polymers for cardiovascular stents.” Materials Research Society Symposium Proceedings, vol. 898, 2005, pp. 184–91. Scopus, doi:10.1557/proc-0898-l15-01.
Yakacki CM, Shandas R, Lanning C, Gall K. Free recovery effects of shape-memory polymers for cardiovascular stents. Materials Research Society Symposium Proceedings. 2005. p. 184–191.

Published In

Materials Research Society Symposium Proceedings

DOI

ISSN

0272-9172

Publication Date

January 1, 2005

Volume

898

Start / End Page

184 / 191