TY - JOUR
T1 - Tetracrystalline Tetrablock Quarterpolymers: Four Different Crystallites under the Same Roof.
AU - Hadjichristidis, Nikos
AU - Ladelta, Viko
AU - Zapsas, Georgios
AU - Abou-Hamad, Edy
AU - Gnanou, Yves
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).The authors thank Professor Alejandro J. Müller (University of the Basque Country) for the fruitful discussion on the crystallizationof multicrystalline multiblock copolymers
PY - 2019/8/26
Y1 - 2019/8/26
N2 - Multicrystalline block copolymers having three or more crystalline segments are essential materials for the advancement of physics in the field of crystallinity. Due to the challenging synthesis of multicrystalline polymers only a limited number of tricrystalline terpolymers are reported until now. We report, for the first time, the synthesis of poly(ethylene)-b-poly(ethylene oxide)-b-poly(ε-caprolactone)-b-poly(L-Lactide) (PE-b-PEO-b-PCL-b-PLLA) tetracrystalline tetrablock quarterpolymer, by combining polyhomologation, ring-opening polymerization, and an organic/metal “catalyst switch” strategy.1H NMR spectroscopy and gel-permeation chromatography confirm the formation of the tetrablock quarterpolymer, while differential scanning calorimetry, X-ray diffraction, and wide-line separation solid-state NMR spectroscopy reveal the existence of four different crystalline domains.
AB - Multicrystalline block copolymers having three or more crystalline segments are essential materials for the advancement of physics in the field of crystallinity. Due to the challenging synthesis of multicrystalline polymers only a limited number of tricrystalline terpolymers are reported until now. We report, for the first time, the synthesis of poly(ethylene)-b-poly(ethylene oxide)-b-poly(ε-caprolactone)-b-poly(L-Lactide) (PE-b-PEO-b-PCL-b-PLLA) tetracrystalline tetrablock quarterpolymer, by combining polyhomologation, ring-opening polymerization, and an organic/metal “catalyst switch” strategy.1H NMR spectroscopy and gel-permeation chromatography confirm the formation of the tetrablock quarterpolymer, while differential scanning calorimetry, X-ray diffraction, and wide-line separation solid-state NMR spectroscopy reveal the existence of four different crystalline domains.
UR - http://hdl.handle.net/10754/656668
UR - http://doi.wiley.com/10.1002/anie.201908688
UR - http://www.scopus.com/inward/record.url?scp=85073998584&partnerID=8YFLogxK
U2 - 10.1002/anie.201908688
DO - 10.1002/anie.201908688
M3 - Article
C2 - 31448860
SN - 1433-7851
VL - 58
SP - 16267
EP - 16274
JO - Angewandte Chemie (International ed. in English)
JF - Angewandte Chemie (International ed. in English)
IS - 45
ER -