End-functionalized polylactides using a calcium-based precatalyst: Synthesis and insights by mass spectrometry

I. Yildirim, S. Crotty, C.H. Loh, G. Festag, C. Weber, P.-F. Caponi, M. Gottschaldt, M. Westerhausen, U.S. Schubert

Research output: Contribution to journalArticle

Abstract

A simple and convenient method for the synthesis of end functionalized polylactides (PLAs) under mild conditions by ring opening polymerization (ROP) in the absence of potentially toxic catalysts is described. Various alcohols were used as initiators in combination with Ca[N(SiMe3)2]2(THF)2 as the precatalyst in THF at room temperature. Tailored end functionalities were obtained in a controlled fashion. Matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐ToF‐MS) and electrospray ionization quadrupole time of flight mass spectrometry (ESI‐Q‐ToF‐MS) analysis were performed to investigate the end groups. The results confirmed that the end group fidelity was maintained in the isolated PLAs.
Original languageEnglish
Pages (from-to)437-448
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume54
Issue number3
DOIs
Publication statusPublished - 1 Feb 2016

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Yildirim, I., Crotty, S., Loh, C. H., Festag, G., Weber, C., Caponi, P-F., Gottschaldt, M., Westerhausen, M., & Schubert, U. S. (2016). End-functionalized polylactides using a calcium-based precatalyst: Synthesis and insights by mass spectrometry. Journal of Polymer Science, Part A: Polymer Chemistry, 54(3), 437-448. https://doi.org/10.1002/pola.27795