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- aggregation classification "A1".
- aggregation creator B505812.
- aggregation creator B505813.
- aggregation creator B505814.
- aggregation creator person.
- aggregation date "2010".
- aggregation format "application/pdf".
- aggregation hasFormat 1047149.bibtex.
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- aggregation hasFormat 1047149.doc.
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- aggregation isPartOf urn:issn:1860-5397.
- aggregation language "eng".
- aggregation rights "I have retained and own the full copyright for this publication".
- aggregation subject "Chemistry".
- aggregation title "Synthesis and crystal structures of multifunctional tosylates as basis for star-shaped poly(2-ethyl-2-oxazoline)s".
- aggregation abstract "The synthesis of well-defined polymer architectures is of major importance for the development of complex functional materials. In this contribution, we discuss the synthesis of a range of multifunctional star-shaped tosylates as potential initiators for the living cationic ring-opening polymerization (CROP) of 2-oxazolines resulting in star-shaped polymers. The synthesis of the tosylates was performed by esterification of the corresponding alcohols with tosyl chloride. Recrystallization of these tosylate compounds afforded single crystals, and the X-ray crystal structures of di-, tetra- and hexa-tosylates are reported. The use of tetra- and hexa-tosylates, based on (di)pentaerythritol as initiators for the CROP of 2-ethyl-2-oxazoline, resulted in very slow initiation and ill-defined polymers, which is most likely caused by steric hindrance in these initiators. As a consequence, a porphyrin-cored tetra-tosylate initiator was prepared, which yielded a well-defined star-shaped poly(2-ethyl-2-oxazoline) by CROP as demonstrated by SEC with RI, UV and diode-array detectors, as well as by 1H NMR spectroscopy.".
- aggregation authorList BK848388.
- aggregation endPage "783".
- aggregation startPage "773".
- aggregation volume "6".
- aggregation aggregates 1047164.
- aggregation isDescribedBy 1047149.
- aggregation similarTo bjoc.6.96.
- aggregation similarTo LU-1047149.