Bulk polymerization of p-dioxanone using a cyclic tin alkoxide as initiator
2007 (English)In: Journal of Polymer Science Part A: Polymer Chemistry, ISSN 0887-624X, E-ISSN 1099-0518, Vol. 45, no 23, 5552-5558 p.Article in journal (Refereed) Published
Poly(p-dioxanone) with an inherent viscosity of over 1 dL/g has been synthesized using the cyclic tin alkoxide 1-di-n-butyl-1-stanna-2,5-dioxacyclopentane as initiator. Poly(p-dioxanone) was synthesized in bulk and the results have been compared with polymerizations using tin (II) 2-ethylhexanoate (Sn(Oct)(2)) as catalyst. Sn(Oct)(2) has often been reported to be an effective catalyst for the synthesis of poly(p-dioxanone), but here it is compared with an initiator which is less prone to catalyze transesterification reactions. The results demonstrate that the cyclic tin initiator is a promising alternative for the synthesis of poly(p-dioxanone) with a high inherent viscosity. Poly(p-dioxanone) is a polymer with mechanical properties and a degradation rate suitable for tissue engineering applications. Both the cyclic tin initiator and Sn(Oct)(2) gave, under some reaction conditions, inherent viscosities around 1 dL/g. The best polymer synthesized using the cyclic tin initiator had a strain-at-break of 515% and a stress-at-break of 43 MPa. The inherent viscosity of this polymer was 1.16 dL/g, while Sn(Oct)(2) resulted in a polymer with an inherent viscosity less than 0.4 dL/g under the same reaction conditions.
Place, publisher, year, edition, pages
2007. Vol. 45, no 23, 5552-5558 p.
initiators, mechanical properties, poly(p-dioxanone), ring-opening, polymerization, synthesis, ring-opening polymerization, poly(p-dioxanone), poly(1, 4-dioxan-2-one), 1, 4-dioxan-2-one, behavior
IdentifiersURN: urn:nbn:se:kth:diva-17163DOI: 10.1002/pola.22301ISI: 000251631100018ScopusID: 2-s2.0-36549057790OAI: oai:DiVA.org:kth-17163DiVA: diva2:335206
QC 201005252010-08-052010-08-052011-05-27Bibliographically approved