1.
Chem Commun (Camb)
; 57(32): 3901-3904, 2021 Apr 25.
Artigo
em Inglês
| MEDLINE
| ID: mdl-33871532
RESUMO
The chemical structure of a branch point of star-shaped polymers has been considered to have a small influence on the physical properties of the entire polymer. Contrary to this general notion, here we show that a 3-arm star polymer, composed of three poly(δ-valerolactone) arms extended from one side of a triptycene branch point, exhibits a remarkably high complex viscosity, compared to the analogous star-shaped polymers with a branch point of a triptycene isomer or triphenylethane.