Please use this identifier to cite or link to this item: doi:10.22028/D291-34059
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Title: Temperature Variation Enables the Design of Biobased Block Copolymers via One‐Step Anionic Copolymerization
Author(s): Bareuther, Jennifer
Plank, Martina
Kuttich, Björn
Kraus, Tobias
Frey, Holger
Gallei, Markus
Language: English
Title: Macromolecular rapid communications : publishing the newsletters of the European Polymer Federation
Volume: 42
Issue: 8
Startpage: 1
Endpage: 9
Publisher/Platform: Wiley
Year of Publication: 2021
Publikation type: Journal Article
Abstract: A one-pot approach for the preparation of diblock copolymers consisting of polystyrene and polymyrcene blocks is described via a temperature-induced block copolymer (BCP) formation strategy. A monomer mixture of styrene and myrcene is employed. The unreactive nature of myrcene in a polar solvent (tetrahydrofuran) at -78 °C enables the sole formation of active polystyrene macroinitiators, while an increase of the temperature (-38 °C to room temperature) leads to poly(styrene-block-myrcene) formation due to polymerization of myrcene. Well-defined BCPs featuring molar masses in the range of 44-117.2 kg mol-1 with dispersities, Ð, of 1.09-1.21, and polymyrcene volume fractions of 30-64% are accessible. Matrix assisted laser desorption ionization-time of flight mass spectrometry measurements reveal the temperature-controlled polymyrcene block formation, while both transmission electron microscopy and small-angle X-ray scattering measurements prove the presence of clearly microphase-separated, long range-ordered domains in the block copolymers. The temperature-controlled one-pot anionic block copolymerization approach may be general for other terpene-diene monomers.
DOI of the first publication: 10.1002/marc.202000513
URL of the first publication:
Link to this record: hdl:20.500.11880/31321
ISSN: 1521-3927
Date of registration: 17-May-2021
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Chemie
Professorship: NT - Prof. Dr. Markus Gallei
NT - Prof. Dr. Tobias Kraus
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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