Reconfigurable and Reprocessable Thermoset Shape Memory Polymer with Synergetic Triple Dynamic Covalent Bonds

• DOI: 10.1002/marc.201800128
• Publication Date: 2018-04-20T07:24:42Z
• Authors: Yongwei Wang; Yi Pan; Zhaohui Zheng; Xiaobin Ding
• Keywords: Thermosetting polymer; Shape-memory polymer; Dynamic Covalent Chemistry

Abstract Degradable shape memory polymers (SMPs), especially for polyurethane‐based SMPs, have shown great potential biomedical applications. How to reasonably fabricate SMPs with the ideal combination of degradability, reconfigurability, and reprocessability is a critical issue remains challenge medical disposable materials. Herein, poly(urethane‐urea) synergetic triple dynamic covalent bonds reported via embedding polycaprolactone unit into hindered urea bond. The single polymer network biodegradable, thermadapt, reprocessable, without sacrificing outstanding performance. Such plasticity expected significant positive impact on device industry.