TY - JOUR A1 - Kricheldorf, H.R. A1 - Weidner, Steffen T1 - Copolyesters of lactide, isosorbide, and terephthalic acid-biobased, biodegradable, high-Tg engineering plastics T2 - Macromolecular chemistry and physics N2 - Various copolyesters of lactide, isosorbide, and terephthalic acid are prepared by a two-step process performed in a 'one-pot' procedure, beginning with an isosorbide-initiated oligomerization of L-lactide followed by polycondensation with terephthaloyl chloride using SnCl2 as a catalyst for both steps. The SEC data show the formation of random copolyesters with high polydispersities as a consequence of the relatively high fraction of cyclics proved by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS). The glass-transition temperatures (89–180 °C) obey an almost linear trend with the molar composition. The thermostability decreases with increasing lactide content. The successful incorporation of phenyl phosphate results in copolyesters of lower inflammability. PB - Wiley-VCH Verl. CY - Weinheim KW - Biodegradability KW - Cyclization KW - Isosorbide KW - Polycondensation KW - Ring-opening polymerization PY - 2013 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/28171 AN - OPUS4-28171 SN - 1022-1352 SN - 1521-3935 VL - 214 IS - 6 SP - 726 EP - 733 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany