Temperature memory effect and its stability revealed via differential scanning calorimetry in ethylene‐vinyl acetate within glass transition range |
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| Authors: | Tao Xi Wang Wei Min Huang Hongmei Chen Rui Xiao Hai Bo Lu Shu Feng Kang |
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| Affiliation: | 1. School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, Singapore;2. College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, People's Republic of China;3. Institute of Soft Matter Mechanics, College of Mechanics and Materials, Hohai University, Nanjing, Jiangsu, China;4. Science and Technology on Advanced Composites in Special Environments Laboratory, Harbin Institute of Technology, Harbin, China;5. Shenzhen Woer Heat‐Shrinkable Material Co. Ltd, Shenzhen, China |
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| Abstract: | In this article, we reveal the temperature memory effect (TME) in a commercial thermoplastic polymer, namely ethylene‐vinyl acetate (EVA), within its glass transition range via a series of differential scanning calorimeter (DSC) tests. In addition, we investigate the influence of heating holding time and also compare the observed TME in current study with that of shape memory alloys (SMAs). It is concluded that the TME via DSC (without any macroscopic shape change) is achievable within the glass transition range of a polymer. Conversely, although the observed TME shares the many similar features as those in SMAs, due to the nature of micro‐Brownian motion in the glass transition of polymers, the resulted TME is strongly affected by the heating holding time. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016 , 54, 1731–1737 |
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| Keywords: | differential scanning calorimetry (DSC) ethylene‐vinyl acetate glass transition stability stimuli‐sensitive polymers temperature memory effect |
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