Ring-opening polymerization of racemic β-butyrolactone promoted by rare earth trisborohydride complexes towards a PHB-diol: an experimental and DFT study

文献情報

出版日 2013-02-22

DOI 10.1039/C3PY00056G

インパクトファクター 5.582

著者

Sophie M. Guillaume, Liana Annunziata, Iker del Rosal, Christophe Iftner, Laurent Maron, Peter W. Roesky, Matthias Schmid

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要旨

The ring-opening polymerization (ROP) of racemic β-butyrolactone (BL), catalyzed by the homoleptic lanthanide trisborohydride complexes, [Ln(BH4)3(THF)3] with Ln = La, Nd, and Sm, is reported, together with a DFT study of the polymerization mechanism. Well-defined atactic α,ω-dihydroxytelechelic poly(3-hydroxybutyrate)s (PHBs), PHB diols, are thus synthesized (Mn up to 8000 g mol−1, 1.02 ≤ Đ ≤ 1.10) as evidenced both experimentally and computationally. DFT investigations also emphasize the lack of stereoselectivity of the catalyst although a high activity is energetically evidenced.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Ring-opening polymerization of racemic β-butyrolactone promoted by rare earth trisborohydride complexes towards a PHB-diol: an experimental and DFT study

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