Multistage Reversible Tg Photomodulation and Hardening of Hydrazone-Containing Polymers.
J Am Chem Soc
; 143(40): 16348-16353, 2021 10 13.
Article
en En
| MEDLINE
| ID: mdl-34590854
ABSTRACT
The glass transition temperature (Tg) of a series of polyacrylate- and polymethacrylate-based polymers having bistable hydrazone photoswitches as pendants increases upon photoisomerization. The ensuing photohardening of the polymeric network was corroborated using nanoindentation measurements. The bistability of the switch allowed us to lock-in and sustain multiple Tg values in the same polymeric material as a function of the hydrazone switch's Z/E isomer ratio, even at elevated temperatures.
Texto completo:
1
Banco de datos:
MEDLINE
Idioma:
En
Año:
2021
Tipo del documento:
Article