Superstrong and Ultratough Hydroxyethyl Cellulose-Based Structural Materials Enabled by the Synergy of Microphase and Orientation

) and high heat resistance (good shape retention after heating at 180 °C for 10 min) of cellulosic materials. Additionally, the resulting materials also possess good transparency and effective UV shielding. This work provides a new perspective for regulating chain-segment mobility and offers a promising pathway for developing sustainable alternatives to petroleum-based structural plastics.