Multistage Reversible Tg Photomodulation and Hardening of Hydrazone-Containing Polymers
Yang, Sirun; Harris, Jared D.; Lambai, Aloshious; Jeliazkov, Laura L.; Mohanty, Gaurav; Zeng, Hao; Priimagi, Arri; Aprahamian, Ivan (2021)
Yang, Sirun
Harris, Jared D.
Lambai, Aloshious
Jeliazkov, Laura L.
Mohanty, Gaurav
Zeng, Hao
Priimagi, Arri
Aprahamian, Ivan
2021
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202112109099
https://urn.fi/URN:NBN:fi:tuni-202112109099
Kuvaus
Peer reviewed
Tiivistelmä
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.
Kokoelmat
- TUNICRIS-julkaisut [15251]