期刊
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
卷 53, 期 4, 页码 552-561出版社
WILEY
DOI: 10.1002/pola.27473
关键词
biopolymers; computational analysis; macrolactones; organic catalyst; polyesters; ring-opening polymerization
资金
- Basque Government
- University of the Basque Country UPV/EHU [UFI11/56]
- MINECO [MAT2010-16171]
The ring-opening polymerization (ROP) of ethylene brassylate, catalyzed by the cyclic guanidine 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) is reported. Several experimental parameters were evaluated for bulk ROP process and polyesters, resulting in molecular weights between 3 and 15 kg mol(-1). End-group analysis by H-1 nuclear magnetic resonnance (NMR) and matrix assisted laser desorption ionization time of flight computational studies supports the dual behavior of TBD, which can act as both a catalyst and initiator of the polymerization process. Under optimum conditions, semicrystalline poly(ethylene brassylate-co-epsilon-caprolactone) random copolymers were synthesized. Depending on the comonomer content, our results showed a range of melting temperatures between 39 and 69 degrees C. (c) 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2015, 53, 552-561
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