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ATRP-based polymers with modular ligation points under thermal and thermomechanical stress

Altintas, O.; Josse, T.; Abbasi, M.; De Winter, J.; Trouillet, V.; Gerbaux, P.; Wilhelm, M.; Barner-Kowollik, C.

Abstract:
Linear polystyrenes carrying a mid-chain triazole, esters as well as terminal secondary bromines functionalities were synthesized via activators regenerated by electron transfer (ARGET) atom transfer radical polymerization (ATRP) using a bifunctional triazole containing initiator (3.8 kDa ≤ Mn,SEC ≤ 125 kDa, 1.08 ≤ ≤ 1.19) with the aim of understanding their behavior under thermal and thermomechanical stress. As reference materials-isolating the influence of individual functional groups-three polystyrene homopolymers carrying an ω-bromine chain-end functionality, α,ω-ester-bromine functionalities as well as α,ω-dibromine/mid-chain ester functionalities (2 kDa ≤ Mn,SEC ≤ 39 kDa, 1.06 ≤ ≤ 1.08) were prepared via ARGET ATRP. Furthermore, a well-defined triazole mid-chain functionalized block homopolymer, i.e. polystyrene-b-polystyrene (PS-b-PS, Mn,SEC = 4.4 kDa,= 1.08), was synthesized via a combination of ARGET ATRP and copper(i)-catalyzed azide-alkyne cycloaddition (CuAAC) as a reference material. Reference polymers without bromine and with ester/triazole functionalities were additionally investigated. Thermomechanical stress was applied to the polymers via small scale extrusion as well as a rheological assessment (G′(t), G′′(t)) under processing conditions. ... mehr

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Volltext §
DOI: 10.5445/IR/1000052009
Originalveröffentlichung
DOI: 10.1039/c5py00036j
Scopus
Zitationen: 13
Web of Science
Zitationen: 13
Coverbild
Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Institut für Biologische Grenzflächen (IBG)
Institut für Angewandte Materialien - Energiespeichersysteme (IAM-ESS)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1759-9954, 1759-9962
urn:nbn:de:swb:90-520092
KITopen-ID: 1000052009
HGF-Programm 43.23.01 (POF III, LK 01)
Erschienen in Polymer chemistry
Band 6
Heft 15
Seiten 2854-2868
Bemerkung zur Veröffentlichung RSC geförderter Open Access-Artikel
Nachgewiesen in Web of Science
Scopus
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