Ring-opening polymerization of racemic β-butyrolactone promoted by rare earth trisborohydride complexes towards a PHB-diol: an experimental and DFT study
文献信息
发布日期
2013-02-22
DOI
10.1039/C3PY00056G
影响因子
5.582
作者
Sophie M. Guillaume, Liana Annunziata, Iker del Rosal, Christophe Iftner, Laurent Maron, Peter W. Roesky, Matthias Schmid
查看原文
摘要
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.
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来源期刊
Polymer Chemistry
CiteScore:
8.6
自引率:
7.3%
年发文量:
457
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