Recent advances in the controlled ring‐opening polymerization of aliphatic cyclic esters are briefly reviewed. Particular attention is paid to the high molecular weight linear, branched, and star‐shaped poly(lactide)s and poly(ε‐caprolactone) synthesis. It is concluded that despite the plethora of initiating and/or catalytic systems applied for this purpose the best results so far were achieved with Al‐ and Sn(II) derivatives. Analytical methods employed for aliphatic polyesters of various architectures characterization, including SEC‐MALLS, LC‐CC, and fluorescence spectroscopy, are also discussed.
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Biela et al. (2006) studied this question.
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