Conformation of Tunable Nanocylinders: Up to Sixth-Generation Dendronized Polymers via Graft-Through Approach by ROMP.
Journal
Macromolecules
ISSN: 0024-9297
Titre abrégé: Macromolecules
Pays: United States
ID NLM: 0365316
Informations de publication
Date de publication:
14 May 2019
14 May 2019
Historique:
received:
07
03
2019
revised:
05
04
2019
entrez:
10
9
2019
pubmed:
10
9
2019
medline:
10
9
2019
Statut:
ppublish
Résumé
Well-defined dendronized polymers (denpols) bearing high-generation dendron are attractive nano-objects as high persistency provides distinct properties, contrast to the random coiled linear polymers However, their syntheses via graft-through approach have been very challenging due to their structural complexity and steric hindrance retarding polymerization. Here, we report the first example of the synthesis of poly(norbornene) (PNB) containing ester dendrons up to the sixth generation (G6) by ring-opening metathesis polymerization. This is the highest generation ever polymerized among dendronized polymers prepared by graft-through approach, producing denpols with molecular weight up to 1960 kg/mol. Combination of size-exclusion chromatography, light scattering, and neutron scattering allowed a thorough structural study of these large denpols in dilute solution. A semiflexible cylinder model was successfully applied to represent both the static and dynamic experimental quantities yielding persistent length (
Identifiants
pubmed: 31496546
doi: 10.1021/acs.macromol.9b00457
pmc: PMC6727591
doi:
Types de publication
Journal Article
Langues
eng
Pagination
3342-3350Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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