Controlled ring-opening polymerization of ω-pentadecalactone with yttrium isopropoxide as an initiator

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Zhong, Zhiyuan and Dijkstra, Pieter J. and Feijen, Jan (2000) Controlled ring-opening polymerization of ω-pentadecalactone with yttrium isopropoxide as an initiator. Macromolecular Chemistry and Physics, 201 (12). pp. 1329-1333. ISSN 1022-1352

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Abstract:The ring-opening polymerization of ω-pentadecalactone (PDL), a 16-membered lactone, in the bulk and in solution using yttrium isopropoxide as an initiator was investigated. All isopropoxide groups of yttrium isopropoxide participated in the initiation and the polymerization took place via acyl-oxygen cleavage of the monomer. The molecular weights of the resulting polymers could be controlled effectively by varying the monomer/initiator ratio. An induction period was observed for the bulk polymerization conducted at 60°C. DSC analyses indicated that poly(ω-pentadecalactone) is a highly crystalline polymer, having a high crystallization rate.
Item Type:Article
Copyright:© 2000 Wiley InterScience
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/71576
Official URL:http://dx.doi.org/10.1002/1521-3935(20000801)201:12<1329::AID-MACP1329>3.0.CO;2-8
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