Isometric crystallization of stretched poly(e-caprolactone) sheets for medical applications |
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Authors: | Bogdanov B |
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Institution: | (1) Orfit Industries Vosveld 9(a), 2110 Wijnegem, Belgium |
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Abstract: | Low melting temperature thermoplastic sheets based on poly(e-caprolactone) (PCL) can be formed directly on the patient and
are used as immobilization device (mask) in the radiation therapy. The immobilization mask is allowed to harden in isometric
conditions on the body at room temperature. A new method for isometric crystallization kinetics of thermoplastic polymer sheets
is developed using a tensile-strength instrument. The isometric crystallization method allows investigating the shrinkage
force on time of crystallization of stretched samples of thermoplastic polymer sheets or immobilization medical devices. The
dependence of the shrinkage force on time is described by Avrami equation and the kinetics parameters of isometric crystallization
are calculated.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | immobilization medical devices poly(e-caprolactone) Avrami equation isometric crystallization shrinkage force |
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