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URN: urn:nbn:de:swb:90-464240
Originalveröffentlichung
DOI: 10.1039/C4PY00644E
Scopus
Zitationen: 18
Web of Science
Zitationen: 19

Amphiphilic block copolymers featuring a reversible hetero Diels-Alder linkage

Langer, Marcel; Brandt, Josef; Lederer, Albena; Goldmann, Anja S.; Schacher, Felix H.; Barner-Kowollik, Christopher

Abstract:
The present article reports the preparation of a novel class of switchable amphiphilic diblock copolymers with a temperature switchable linkage. Reversible addition fragmentation chain transfer (RAFT) polymerization was used to synthesize the individual blocks: for the preparation of the non-polar block{,} i.e. poly(isoprene-co-styrene) (P(I-co-S)) (9200 g mol-1 [less-than-or-equal] Mn [less-than-or-equal] 50 000 g mol-1{,} 1.22 [less-than-or-equal] D [less-than-or-equal] 1.36){,} a chain transfer agent (CTA{,} 3-((2-bromo-2-methylpropanoyl)oxy)propyl 2-(((dodecylthio)carbonothioyl)thio)-2-methylpropanoate) carrying a bromine group was employed{,} ready for subsequent cyclopentadienyl (Cp) transformation. For the preparation of the polar block{,} triethylene glycol methyl ether acrylate (TEGA) was polymerized (6600 g mol-1 [less-than-or-equal] Mn [less-than-or-equal] 35 000 g mol-1{,} 1.12 [less-than-or-equal] D [less-than-or-equal] 1.30) using a RAFT agent carrying a phosphoryl Z-group{,} which is able to undergo hetero Diels-Alder (HDA) ligation with Cp moieties. Both building blocks were conjugated at ambient temperature in the p ... mehr


Zugehörige Institution(en) am KIT Institut für Biologische Grenzflächen (IBG)
Institut für Baugestaltung (Inst. f. Baugest.)
Publikationstyp Zeitschriftenaufsatz
Jahr 2014
Sprache Englisch
Identifikator ISSN: 1759-9954
KITopen ID: 1000046424
HGF-Programm 47.03.02; LK 01
Erschienen in Polymer Chemistry
Band 5
Heft 18
Seiten 5330-5338
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