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- Title
Synthesis and Application of a Thermoplastic Plate of Poly(lactide-ε-caprolactone) for Radiation Therapy.
- Authors
Hongli Li; Wenzhi Li; HongtaoWu; Dengbang Jiang; Mingwei Yuan; Minglong Yuan
- Abstract
In this study, the poly(lactide-ε-caprolactone) (P(LA-CL)) copolymer is synthesized by ring-opening polymerization with glycol used as a molecular weight regulator to adjust the molecular weight of the polymer. The proton nuclear magnetic resonance spectroscopy and gel permeation chromatography (GPC) results demonstrate that the P(LA-CL) copolymer is successfully synthesized, and that the molecular weight can be controlled by the glycol content. The thermoplastic plate is processed with triallyl isocyanurate as a cross-linking agent by a single-screw extruder followed by γ-ray irradiation. Shape memory test results show that the material had the desired shape memory effect, with deformation recovery rates reaching 100%. After secondary stretching of samples, deformation recovery rates are unchanged. The results of mechanical property measurements indicate that with added lactide, the tensile strength is improved and shore hardness is increased by 20%-30%. Data from clinical trials also reveal that the material has good clinical effects in thermoplastic membrane fixation.
- Subjects
NUCLEAR magnetic resonance spectroscopy; PROTON magnetic resonance spectroscopy; SHAPE memory effect; GEL permeation chromatography; THERMOPLASTICS; MOLECULAR weights; SHAPE memory polymers
- Publication
Biomolecules (2218-273X), 2020, Vol 10, Issue 1, p1
- ISSN
2218-273X
- Publication type
Article
- DOI
10.3390/biom10010027