Curing of Divinyl Triethylene Glycol Bis-o-phthalate Films in the Presence of Photoinitiators

Mironovich, L. M.; Nikozyat, Yu. B.; Иващенко, Елена Дмитриевна

doi:10.1007/s11167-005-0362-4

Cited by 2 publications

(1 citation statement)

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“…Hoyle et al describe the photopolymerization behavior of divinyl fumarate24 and mono‐ and multivinyl ester monomers containing thioether linkages 25. According to L. M. Mironovich divinyl tri(ethylene glycol)bis( o ‐phthalate) could be photocured into thin poly(vinyl ester) films in presence of transition metal β‐diketonates 26. Yet there is still no literature for vinyl ester‐based photopolymers shaped by AMT or biomedical applications thereof.…”

Section: Introductionmentioning

confidence: 99%

Vinyl esters: Low cytotoxicity monomers for the fabrication of biocompatible 3D scaffolds by lithography based additive manufacturing

Heller

Schwentenwein

Russmueller

et al. 2009

J. Polym. Sci. A Polym. Chem.

143

142

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Lithography based additive manufacturing technologies (AMT) like stereolithography or digital light processing have become appealing methods for the fabrication of 3D cellular scaffolds for tissue engineering and regenerative medicine. To circumvent the use of (meth)acrylate-based photopolymers, that suffer from skin irritation and sometimes cytotoxicity, new monomers based on vinyl esters were prepared. In vitro cytotoxicity studies with osteoblast-like cells proofed that monomers based on vinyl esters are significantly less cytotoxic than (meth)acrylates. Photoreactivity was followed by photo-differential scanning calorimetry and the mechanical properties of the photocured materials were screened by nanoindentation. Conversion rates and indentation moduli between those of acrylate and methacrylate references could be observed. Furthermore, osteoblast-like cells were successfully seeded onto polymer specimens. Finally, we were able to print a 3D test structure out of a vinyl ester-based formulation by l-SLA with a layer thickness of 50 lm. For in vivo testing of vinyl esters these 3D scaffolds were implanted into surgical defects of the distal femoral bone of adult New Zealand white rabbits. The obtained histological results approved the excellent biocompatibility of vinyl esters. V V C 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 6941-6954, 2009

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Section: Introductionmentioning

confidence: 99%