Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 54, Issue 3, Pages 437-448Publisher
WILEY
DOI: 10.1002/pola.27795
Keywords
end-functional polymers; MALDI; mass spectrometry; polyesters; ring-opening polymerization
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Funding
- Carl Zeiss Foundation
- Thuringian Ministry of Education, Science and Culture (Thuringer Ministerium fur Bildung, Wissenschaft und Kultur) [B515-07008, B715-08011]
- Graduate Academy of the Friedrich Schiller University Jena
- Ernst Abbe Foundation
- Bruker Daltonics
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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. (C) 2015 Wiley Periodicals, Inc.
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