Near-Infrared Light-Responsive Shape Memory Polymer Fabricated from Reactive Melt Blending of Semicrystalline Maleated Polyolefin Elastomer and Polyaniline
| Autor: | Young-Wook Chang, Keon-Soo Jang, Taehoon Kim, Min-Su Heo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Organic chemistry General Chemistry Elastomer Article polyaniline Polyolefin shape memory polymer melt blending chemistry.chemical_compound Shape-memory polymer Crystallinity QD241-441 chemistry Chemical engineering Transmission electron microscopy Polyaniline Fourier transform infrared spectroscopy semicrystalline maleated polyolefin elastomer NIR light responsive Tensile testing |
| Zdroj: | Polymers, Vol 13, Iss 3984, p 3984 (2021) Polymers Volume 13 Issue 22 |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym13223984 |
| Popis: | A shape memory polymer was prepared by melt mixing a semicrystalline maleated polyolefin elastomer (mPOE) with a small amount of polyaniline (PANI) (up to 15 wt.%) in an internal mixer. Transmission electron microscopy (TEM), FTIR analysis, DMA, DSC, melt rheological analysis, and a tensile test were performed to characterize the structure and properties of the mPOE/PANI blends. The results revealed that the blends form a physically crosslinked network via the grafting of PANI onto the mPOE chains, and the PANI dispersed at the nanometer scale in the POE matrix served as a photo-thermal agent and provided increased crosslinking points. These structural features enabled the blends to exhibit a shape memory effect upon near-infrared (NIR) light irradiation. With increasing PANI content, the shape recovery rate of the blend under NIR stimulation was improved and reached 96% at 15 wt.% of PANI. |
| Databáze: | OpenAIRE |
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