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PEO-b-PCL-b-PMOXA Triblock Copolymers: From Synthesis to Microscale Polymersomes with Asymmetric Membrane

Konishcheva, Evgeniia V. and Zhumaev, Ulmas E. and Meier, Wolfgang P.. (2017) PEO-b-PCL-b-PMOXA Triblock Copolymers: From Synthesis to Microscale Polymersomes with Asymmetric Membrane. Macromolecules, 50 (4). pp. 1512-1520.

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Official URL: http://edoc.unibas.ch/55592/

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Abstract

We report a new family of amphiphilic ABC triblock copolymers: poly(ethylene oxide)-block-polycaprolactone-block-poly(2-methy1-2-oxazoline) (PEO-b-PCL-b-PMOXA). The synthesis is free of toxic reagents, well-controlled and results in polymers with D-M < 1.25 and PMOXA length up to 25 units (2 kDa). We compare the self assembly of PEO-b-PCL-b-PMOXA with PEO-b-PCL depending on PCL length and hydrophilic weight fraction (f) using the film rehydration method. Polymers self-assemble into different microscale structures, including polymersomes, which were studied by laser scanning microscopy. We proved the asymmetry of polymersome membrane by two independent methods, which confirmed the presence of a longer PEO block and the absence of a shorter PMOXA block on the outer surface of polymersomes.
Faculties and Departments:05 Faculty of Science > Departement Chemie
05 Faculty of Science > Departement Chemie > Chemie > Makromolekulare Chemie (Meier)
UniBasel Contributors:Meier, Wolfgang P.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Chemical Society
ISSN:0024-9297
e-ISSN:1520-5835
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:10 Jul 2017 07:52
Deposited On:10 Jul 2017 07:52

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