April 22 - 26, 2024
Seattle, Washington
May 7 - 9, 2024 (Virtual)

Event Supporters

2024 MRS Spring Meeting
MF03.10.02

Degradable and Thermally Stable Spiro Polycycloacetals from Renewable Resources

When and Where

Apr 25, 2024
2:00pm - 2:30pm
Room 323, Level 3, Summit

Presenter(s)

Co-Author(s)

Megan Robertson1,Elvis Enebeli1,Justin Smith1,Minjie Shen1

University of Houston1

Abstract

Megan Robertson1,Elvis Enebeli1,Justin Smith1,Minjie Shen1

University of Houston1
A series of partially bio-based spiro polycycloacetals were synthesized using bio-renewable feedstocks, such as vanillin and its derivative syringaldehyde, along with pentaerythritol and commercially available co-monomers including 4,4′-difluorobenzophenone and bis(4-fluorophenyl) sulfone. These spiro polycycloacetals displayed high thermal stabilities (degradation temperatures in the range of 343 – 370 °C, as quantified by 5% mass loss) and glass transition temperatures (in the range of 179 – 243 °C). Importantly, these polymers were effectively degraded to small molecules under acid-catalyzed hydrolytic conditions in less than 7 h. The kinetics of hydrolytic degradation was quantified through <i>in situ</i> NMR analyses.

Symposium Organizers

Yuanyuan Li, KTH Royal Institute of Technology
Kunal Masania, TU Delft
Gustav Nystrom, EMPA
Eleftheria Roumeli, University of Washington

Session Chairs

Megan Robertson
Eleftheria Roumeli

In this Session