𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Novel Shape-Memory Materials Based on Potato Starch

✍ Scribed by Cyril Véchambre; Laurent Chaunier; Denis Lourdin

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
498 KB
Volume
295
Category
Article
ISSN
1438-7492

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Shape‐memory properties such as shape fixity and recovery ratio of amorphous starch‐based materials extruded under normal conditions were evaluated for the case of single and cyclic recovery processing. This study focused on the effect of moisture as a stimulus for the activation of recovery. A high recovery ratio (R~r~ > 90%) was obtained at high relative humidity, at deformation ratios up to 200%. In the case of plasticized starch with a glycerol content of 10%, the recovery ratio was close to 50% because crystallization limited the shape recovery. Results were compared to those obtained with synthetic or bio‐based shape‐memory polymers such as semi‐crystalline PU or PLAGC. Efficient shape memory properties for a non‐modified biopolymer are highlighted in this study.

magnified image

📜 SIMILAR VOLUMES

Novel Shape-Memory Polymer Based on Hydr
Novel Shape-Memory Polymer Based on Hydrogen Bonding
✍ Guoqin Liu; Chunlong Guan; Hesheng Xia; Fuquan Guo; Xiaobin Ding; Yuxing Peng 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB

## Abstract **Summary:** Due to a large difference in storage modulus below and above the glass transition temperature, a novel shape‐memory poly[(methyl methacrylate)‐__co__‐(__N__‐vinyl‐2‐pyrrolidone)]/poly(ethylene glycol) semi‐interpenetrating polymer networks structure was synthesized, which i

Shape memory polymers based on uniform a
Shape memory polymers based on uniform aliphatic urethane networks
✍ T. S. Wilson; J. P. Bearinger; J. L. Herberg; J. E. Marion III; W. J. Wright; C. 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 233 KB 👁 1 views

## Abstract Aliphatic urethane polymers have been synthesized and characterized, using monomers with high molecular symmetry, to form amorphous networks with very uniform supermolecular structures, which can be used as photo‐thermally actuable shape memory polymers (SMPs). The monomers used include