期刊
SOFT MATTER
卷 12, 期 11, 页码 2894-2900出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sm02703a
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资金
- National Natural Science Foundation of China [51402073, 11225211, 11272106]
- China Postdoctoral Science Foundation [2013M531030]
- Fundamental Research Funds for the Central Universities [HIT. NSRIF. 2011018, HIT. NSRIF. 2012064]
Optically transparent shape memory polymers (SMPs) have potential in advanced optoelectronic and other common shape memory applications, and here optically transparent shape memory polyimide is reported for the first time. The polyimide possesses a glass transition temperature (T-g) of 171 degrees C, higher than the T-g of other transparent SMPs reported, and the influence of molecular structure on T-g is discussed. The 120 mm thick polyimide film exhibits transmittance higher than 81% in 450-800 nm, and the possible mechanism of its high transparency is analyzed, which will benefit further research on other transparent high temperature SMPs. The transparent polyimide showed excellent thermomechanical properties and shape memory performances, and retained high optical transparency after many shape memory cycles.
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