![Castor oil and PEG-based shape memory polyurethane films: Effect of chain extender amount on some polymer properties and performance](https://timtailieu.net/upload/document/320449/w126_h160_castor-oil-and-peg-based-shape-memory-polyurethane-films-effect-of-chain-extender-amount-on-some-polymer-properties-and-performance-320449.jpg)
Castor oil and PEG-based shape memory polyurethane films: Effect of chain extender amount on some polymer properties and performance
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